blue sailboat light on dashboard

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Drivers are just realizing what ‘blue sailboat’ icon means in winter – it may not be safe to drive yet when you see it

• Kristen Brown
• Published : 12:11 ET, Oct 28 2023
• Updated : 12:11 ET, Oct 28 2023

AUTOMOTIVE experts have warned drivers of the true meaning behind the 'little blue sailboat' dash light.

As winter slowly creeps up and temperatures go down, it's important to know that certain temperature-related lights mean, and how to respond to them.

A car review channel on TikTok called Basic A*s Car Reviews (@ basicasscarreviews ) uploaded a humor laden video telling drivers that the 'little blue sailboat' is warning drivers their car is too cold.

"Listen up psychos," she said.

"You don't just hop in the car and drive off, you have to wait until the car warms up, especially in the winter. That's what this little blue sail boat is for."

She zooms in on her dashboard, which showed the bright blue thermometer light floating in liquid, which some have nicknamed the "little blue sail boat."

Read More on Dash Lights

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"Once the car is heated and the blue sail boat is gone, then you can go," she said.

According to The Auto Doc , that light simply indicates that the temperature of the vehicle's coolant is below the recommended temperature.

"In fact, the temperature is so low that it is possible for your radiator to get too cold, thus resulting in your engine freezing up and not being able to start," the site reads.

However, as long as a vehicle's coolant is changed upon manufacturer suggested intervals and there are no leaks, coolant will never freeze, but it can become more viscous.

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"But for this light to come on right at startup is normal. If anything, it's simply telling you that you just need to let your engine warm up a bit... The light will go away within a minute or two."

Though the warm up topic is wildly debated in the automotive industry, with some experts like The Auto Doc saying warming up an engine for a minute or two is a must, while others say modern tech renders the practice unnecessary.

J.D. Power states that warming up a vehicle for more than 20 to 30 seconds can be considered wasteful, especially with modern cars.

"Before the mid-90s, most vehicles used a carburetor, a mechanism that blends air and fuel for internal combustion engines in a suitable air-to-fuel ratio," the site reads.

"But during the late-80s and 90s, American car manufacturers began switching to fuel-injected engines."

With modern tech being so refined, idling for longer is an unnecessary waste of fuel and yields no real benefits for the engine.

"Warming up is a great way to maintain engine health . You allow it to lubricate itself and, in turn, prolong its life cycle. However, modern vehicles no longer have carburetors, and lubrication takes 20-30 seconds," the site says.

"So, there is no real need to sit idle much beyond the time it takes to defog the windshield."

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What Does A Blue Engine Coolant Temperature Light Indicate?

A blue engine coolant temperature light only indicates one thing: that your coolant, or antifreeze, is too cold. In fact, the temperature is so low that it is possible for your radiator to get too cold, thus resulting in your engine freezing up and not being able to start.

But for this light to come on right at startup is normal. If anything, it's simply telling you that you just need to let your engine warm up a bit. In the meantime, your vehicle's system is performing a routine temperature check, and that's normal. It's also an excellent safety feature that wakes up your engine prior to take-off. Allowing your vehicle a couple of minutes to warm up is equivalent to you enjoying that delicious first cup of coffee that starts you up and keeps you going the rest of the day.

In most cases, this blue light only stays on for a minute or two. When this happens, driving off right away is ill-advised, especially in certain gears. The blue light will go off when you've given your car sufficient time to warm up. If anything, once your engine warms, all of the other fluids can do their jobs effectively. Your oil will be able to lubricate all parts while your transmission fluid controls your speed and motion well. Plus, power steering fluid can be more readily distributed in hydraulic systems and using the wheel will be safe and effective.

But if the blue light persists beyond two minutes, your antifreeze may be at stake. If this happens, it is advised that you turn off your engine and wait for it to cool down sufficiently before checking your antifreeze levels. Failure to do so could be fatal in that you might face a shower of scalding, hot water spraying your face, and third-degree burns may result.

Low antifreeze levels may be the result of a leak hiding somewhere in your tank. If you're unsure of how to inspect it for a leak, it may be best to have a professional inspection done. If you feel you need service, we invite you to bring your vehicle into our auto repair shop today!

Blue Light On Dashboard — What You Should Know

One of the things you will notice when you turn on your ignition is the different car symbol lights on the dashboard. Most of these lights are supposed to turn off as soon as you start the engine. But if any of the lights stay on or reappear after the engine starts, it is trying to notify you of an issue.

The color of the dashboard light determines what it is trying to tell you. For example, a red light on the dashboard means a severe issue that needs urgent attention. Yellow or amber light signifies a mild or less severe issue. White and green lights show the system is currently in use or working correctly. This article will explain what blue light on the dashboard means and how to clear it.

What does the blue light mean on the dashboard?

A blue light on the dashboard means the vehicle has not yet reached the normal operating temperature and is nothing to worry about. In other words, the engine is too cold for driving. However, to avoid any complications, it is important to idle the car until the blue temperature light disappears before driving.

The engine temperature light can turn another color — red. When the red color turns on, it shows your engine is too hot, and there’s a chance of overheating , or it is already overheating.

A warning blue light on dashboard can also be an indicator that the high beam light is on. If the headlamp dashboard icon illuminates a blue light, it means the high beam light is currently in use or working correctly. In such a case, you have nothing to worry about. However, only use high-beam headlights when necessary.

How to fix blue coolant light

There are three methods or approaches to fix the blue light on the dashboard of a Honda Civic or any car model.

Allow the engine to warm up before driving.

Since the blue coolant temperature light means the engine is too cold for driving, do not drive the vehicle while the light is there. Instead, idle the vehicle for a few minutes for it to warm up. Usually, the light should clear within 2 to 5 minutes of idling.

If you are in a rush to somewhere, you can drive the car with the blue temperature light on but at a moderate speed. The light should disappear as soon as the engine warms up.

Check the coolant level.

In rare cases, the blue temperature light on the dashboard could mean low coolant in the radiator. While this is rare, you don’t have to rule it out. Check the coolant level if the blue temperature lights stay on the dashboard for an extended period. Topping the radiator with the recommended coolant could be all you need to address the light.

However, if the car starts before the coolant icon illuminates blue light for an extended period, turn off the car and allow the engine to cool before checking the coolant level. The temperature car symbol looks like a flag floating in water with blue light.

I advise you to wait patiently for the coolant to cool down before opening the radiator cap. Otherwise, the built-up pressure in the radiator will pour the coolant and burn off your skin.

Also, ensure you have the correct antifreeze that meets your vehicle specifications. Improperly mixed antifreeze or the wrong type of antifreeze can cause the engine coolant to be lower than it should be. Invariably, keeping the light longer than it should.

Switch off high-beam headlights.

As explained earlier, another reason for a blue light to appear on the dashboard is when the high-beam headlights are on. Switch off the high-beam headlights if you want the blue light on the dashboard to disappear. You can turn on the low beams and the blue headlamp light on the dashboard will turn to green — showing that the low beam lights are on.

Is it safe to drive with a coolant light on?

The blue temperature light on the dashboard does not stop your car’s movement. Neither will it cause engine overheating. However, it is best to idle the car until the blue light on the dashboard of Mazda or your respective car goes off.

It’s normal for this light to come on upon start-up. If anything, the blue temperature light on the dashboard means your car temperature is below the required operating temperature needed for driving. You just need to allow the car to warm up before hitting the road.

In extreme cases, though rare, your engine may freeze and not start. The blue temperature light on your dashboard means the coolant is too cold. Too cold coolant can also make the radiator too cold and prevent the car from starting.

How long should the blue coolant light stay on?

If the blue light has a headlight icon, the light will not go off until you turn off the high-beam headlamp.

But if it is a temperature light, it should disappear on its own after 2 to 5 minutes. If it persists after 5 minutes, check the coolant level and ensure it is at the right level.

Final Words

To be precise, there are two common blue lights on dashboard that you will see at one point or the other. The first blue is the temperature light, indicating that the engine temperature is too low. It doesn’t denote a problem. You just have to allow the engine to warm up before hitting the road.

The second blue is the one with a headlamp icon—indicating that the high-beam headlight is currently in use or working correctly. Ignore the light if your driving situation demands high-beam headlights. But if it doesn’t, consider switching on the low beam or completely turning off the headlights.

Osuagwu Solomon

Osuagwu Solomon is a certified mechanic with over a decade of experience in the mechanic garage, and he has over five years of experience in the writing industry. He started writing automotive articles to share his garage experience with car enthusiasts and armature mechanics. If he is not in the garage fixing challenging mechanical problems, he is writing automotive repair guides, buyer’s guides, and car and tools comparisons.

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A Complete Guide to Warning Lights on Your Car Dashboard

What the various warning symbols mean

We live in a world rife with symbolism, from traffic lights and store signs all the way through to dashboard lights and hand gestures. The meaning behind these symbols is something we often learn over time but, occasionally, we need a little help with the finer details. It might sound like a drag to read through your user manual when all you really want to do is get behind the wheel of your new car and go for a drive. However, the warning lights on your car dashboard are there for a reason, and understanding car dashboard symbols and their meanings could be the difference between an enjoyable ride and a gut-wrenching breakdown.

Car Dash Symbols and Their Meaning

While all vehicles differ slightly, most share a common set of dashboard symbols and signals. dash These lights on the car dash are categorized by their color - blue or green simply displays that the feature is active; yellow or orange cautions drivers that a system needs checking soon; and red car dash symbols warn that something is critically wrong.

Here is a list of all the common car dashboard warning lights, their meaning, and a visual aid:

Engine Temperature Warning

One of the more critical vehicle warning lights, this symbol will usually only light up after you have been driving for some time. While the immediate concern is simply the temperature, the actual cause could be any number of factors. These include low engine coolant levels, a leaky radiator, clogged pipes, or even a blown gasket. Regardless of the cause, it is imperative that you safely pull over at the earliest opportunity and turn the vehicle off. Continuing on while this warning is displayed could lead to a catastrophic failure of the engine and permanent damage. If you can't figure out the problem, you should get to a workshop as soon as possible. If there are none nearby, rather call a tow service than try to get there on your own.

Check Engine Warning

As one of the yellow dash indicator lights, this warning is not as critical as the aforementioned one. However, no potential problem with the engine should ever go overlooked for long. Even if it is simply a fault with the sensor or car panel lights, you should get to a mechanic at your earliest convenience. Engine damage can lead to hefty repair or replacement bills.

Glow Plug Warning

This is one of the lesser-known dashboard warning symbols, since it is only found on diesel vehicles. The engines found in these cars rely on different mechanics, including glow plugs, which are used to regulate temperature and pressure. If left unchecked, a problem with the glow plugs can lead to early/late combustions, which manifests as a rough engine sound and a drop in fuel efficiency.

Diesel Particulate Filter Warning

The DPF is another of those niche symbols that are found only on diesel-powered vehicles. It signifies a problem with the filter, which may be blocked or damaged. This leads to billows of smoke from the exhaust, but can also cause engine damage if left unchecked.

Battery Charge Warning

While this is technically one of the critical red car indicator lights, it does not require instantaneous shutdown of the vehicle. In fact, that may lead to more trouble. Instead, you should turn off all unnecessary electronics, such as your stereo or air conditioning. This is because the engine and alternator are not functioning properly to recharge the battery, and any additional drain could leave you stranded the next time you try to turn the ignition. Unfortunately, many essential safety and driver-assistance systems also need power and may not get enough no matter what you do. You should make sure to come to a stop at a gas station or somewhere that you may be able to get a jumpstart in the event that your battery is dead.

Power steering warning

A problem with the power steering may stem from either mechanical or electrical sources. Naturally, this light only appears on vehicles equipped with such a system, but that includes most modern cars produced in the USA. You'll notice that the steering wheel feels a lot heavier than usual, since the failing system actually works against you. It is advised that you pull over as soon as possible. It may simply be that your power steering fluid needs refilling, especially if it has sprung a leak, but you may need professional help, too.

Oil pressure warning

Automobiles rely on a careful balance of multiple liquids to keep all the parts working, and problems with any of them can be serious. This light rears its ugly head when the oil pump isn't creating enough pressure. Common causes include a leak or fault pump, as well as low oil levels (which is why you should your motor oil levels regularly - read here for an easy 'how to' guide). The latter is easy to fix - simply top up the oil. However, if the problem persists, consult your handbook or seek a mechanic's help.

Brake system warning

Another critical system, improperly functioning brakes can cause serious problems. If you're lucky, the issue may simply be that you forgot to disengage the parking brake before heading off. However, it could also be that your brake fluid is low or that the brake pads are worn to the point where they no longer function reliably. Alternatively, it could be something more complicated. The best thing to do is call roadside assistance or a tow, since driving is inadvisable. Let the professionals help you out.

Door/trunk/hood warning

While it may not sound overly critical that your doors are not properly sealed or that you left your trunk open, it can be very dangerous, especially for other motorists or pedestrians. You certainly wouldn't want your passenger door to swing open when you come to a stop and slam into a cyclist. Normally, you can tell if one of these hatches is open, but sometimes it is simply a case of them being slightly loose. Often this also means interior lights remain on, and over time, will drain the battery. In any event, you should definitely recheck all hatches are closed before getting underway, or leaving your car.

Seatbelt warning

This may not seem like a "red" issue, but making sure your seatbelt is properly fastened before driving can actually be the difference between life and death. It doesn't matter if you plan to drive 100 miles or 10 meters. Almost all modern cars include this sensor, and many also add an audible alert. In some cases, the sound becomes increasingly aggravating to the point where it is simply easier to do as you are told.

Tire pressure sensor warning

Though it is a less critical alert, the TPMS should not go ignored for long. As tire pressure drops, handling decreases and braking becomes less controlled. Generally, the light does not turn red in the event of a major pressure decrease, so there is no way to tell if it is safe to drive without risking a major blowout. You should either pull over and check the pressure yourself, if you have a kit, or else find a gas station to inflate the tires in question and patch any leaks.

Traction-control warning

Another seemingly innocuous warning, this symbol lights up when the tires are not gripping the road as well as they should. Most commonly, this will occur during rainy or snowy weather conditions. More confident and adventurous drivers may choose to deactivate the built-in traction system in their cars, in which case, the light can be ignored. However, if you haven't done so and the light continues to show, it means you should get the system checked, since it is not working correctly, if at all.

Low fuel warning

A symbol we all dread, especially on a long road trip or when your wallets are especially light, this ominous yellow indicator simply lets you know when your fuel tank is running low. Needless to say, you shouldn't ignore it for too long, unless you enjoy long hikes with a fuel canister in hand. Most modern cars will give you more than enough warning to find a gas station, but if it's been on for a while, you better not dally! After all, breaking down due to driver negligence is a finable offense, and you certainly won't need the extra cost.

Car advice put simply.

Blue light on dashboard — what you should know

Understand the hidden risks associated with blue dashboard lights in your car..

One thing you notice right away when you turn on a car is colored lights that glow on the dashboard , giving you information about different parts of the vehicle.

For most cars, lights on the dashboard may also indicate a problem, and the color of the light shows how intensive the issue is. For example, the red color usually means danger and severe component failure.

Amber lights and yellow usually denote a less severe problem or hazard. Green and white lights indicate a feature such as a cruise control or headlights is engaged.

On the other hand, the blue light on the dashboard often indicates that your vehicle is not at the operational driving temperature yet, and it is not a cause for worry. The blue light can also be your high beam headlight indicator. This article will explain why the blue light glows on the dashboard and when it should be a cause of concern.

Can you drive with a blue coolant light on?

The blue coolant light does not affect your car’s movement. However, it would be best to wait for it to disappear before moving the vehicle.

Your coolant light displaying blue means your vehicle is not at the right temperature for operations like movement. Waiting for the car to warm up first, causing the blue light to disappear, is the best action.

In some cases, your engine may freeze, making your car unable to start. For this scenario, the blue display from the coolant icon on your dashboard means that your antifreeze (coolant) is too cold. The low temperature of the coolant can cause your radiator to be too cold, resulting in your car being unable to start.

Suppose your car starts anyway, with the coolant icon displaying blue for too long; first, switch off the vehicle. Then, wait for the engine to get cold before checking your antifreeze levels. The coolant icon looks like a flag floating on water.

It is essential to be patient while waiting for your engine to cool before checking your antifreeze levels. Checking these levels at the wrong time after switching off a car can lead to a shower of scalding hot water on the face.

The blue coolant light (when prolonged) indicates low levels of coolant in the engine. If you do not address the situation, your engine will either overheat or seize up. The long-term consequence is permanent damage to the engine from overheating .

Therefore, if your blue coolant light stays on for too long while driving, it would be best to locate the nearest car repair shop to have an auto mechanic look into the case.

What can cause low levels of coolant?

Coolants are vital because they keep the engine from overheating. When you see a blue light on your dashboard, it indicates that you have low levels of coolant in your engine. There are various symptoms of low coolant , but only a few reasons behind them.

These are two major causes of low levels of coolant in an engine:

Leaks in the coolant system

The gradual dropping of coolant levels can happen due to leaks in the system. Leaks can occur on the hoses, radiator, or radiator cap.

Asides from the blue color on the dashboard serving as a warning sign, you can also tell if your cooling system is leaking through smell. Coolant oil has a sweet odor. Perceiving this sweet odor, plus an increase in the amount of gas you buy, should tell you that you have coolant leaking.

If you experience this, take your car to the auto mechanic for repairs to avoid spending more money on situations aggravated by this one.

Insufficient coolant top-up

Sometimes, low coolant levels are not because of leakage. Most drivers are ignorant about coolant top-ups and tend not to do it until something happens. An insufficient coolant level in your car will steady the blue light on your dashboard.

The time it takes for coolant levels to drop to the point that they are too low for use depends on the car manufacturer and your driving habits. Naturally, if you often drive long distances, you should have regular maintenance checks than the average worker who only takes a few miles to work and back every day. It is best to check your coolant levels twice a year – just before winter and summer.

These two season picks are because you need sufficient coolant to take you through the summer heat, while the winter cold may come off as misleading sometimes. It is easy to assume you do not have enough coolant in the winter because temperatures drop, and the car will need more warming up than usual. Therefore, ensuring you have the right amount of coolant before the winter hits will ensure you do not worry about the blue light on your dashboard.

It helps to have comprehensive maintenance checks at regular intervals if you are too busy to understand the technicalities of your car. Your auto mechanic will notice when you need a refill on time.

What other light can the coolant indicator show?

Asides from blue, the coolant indicator can also glow red. Red color indicators often infer that there is a problem somewhere.

When your coolant indicator gives off a red colored light, your engine is overheating at that point. Overheating can happen for many reasons and should be addressed as soon as possible.

If, when starting your car, the coolant light glows blue and then progresses to red after you have driven for some time, it is a sign that your coolant levels are too low. They are so low that they cannot function properly, leaving the engine to heat up without sufficient coolants to reduce its temperature.

You should stop driving when the coolant indicator turns red and wait for the engine to cool down . The next place your vehicle should be after that is the mechanic’s workshop. Continuous usage of a car that is overheating will induce and increase damage to the engine.

Damages from overheating vary, and repairs can cost more than they should if you do not arrest the situation on time. Overheating can even cost you your entire engine. So, if you see your coolant indicator showing blue and then red lights later, have it checked immediately and save yourself money and stress.

Another blue light you may see on the dashboard

Another blue light you will see on the dashboard is the headlight indicator. Most old cars do not have this feature, but all modern cars have it. It is a safety feature that most drivers are surprisingly not aware of.

Relying on high beam headlights alone is not advisable. They are very bright over long ranges, and using them puts you at risk of blinding other drivers, which can cause a minor accident. You also risk endangering yourself in adverse weather conditions as the high beams can cause a glare.

If the headlight indicator is blue, the high beam headlights are on, while green indicates that the low beam headlights are on. The high beam symbol has five horizontal lines vertically stacked to the left of a shape resembling headlights.

When should I use my headlights?

It would help if you only use your high beam headlights when you are more than twenty feet behind another vehicle, and no heavy rain, fog, or snow is present. In case you aren’t familiar with the low-beam vs high-beam discussion, activating high beams triggers a blue light on the dash.

They are best used at night when the weather is fair, and the roads are clear. In an urban area with many cars around, your high beam headlights may inconvenience other drivers. The low beam headlights will still enable you to see where you are going (though not as far as the high beam headlights would).

Some new models have a technology that moderates your headlights for you. The technology uses your environment and the weather to control the intensity of your beam, taking it high or low when needed. However, it is a relatively new technology, and until most production cars have it installed, it would be best if you are conscious of how you use your headlights.

The blue light on the dashboard is usually nothing to worry about, and you commonly see it on two icons – coolant and high beam indicators. Blue light from the coolant indicator shows that the coolant levels are low due to leaks or extended usage, while blue light from the high beam indicator shows that the high beam headlights are on.

While the blue color of high beam headlights is for your safety in bad weather and the safety of other drivers plying the road parallel to your direction, the blue coolant light concerns the car engine. In cold weather, blue light from the coolant indicator is not something to worry about. A persistent blue coolant light indicates a possible deficiency of coolant in the cooling system.

If a red one follows the blue light, your coolant level is too low, and your engine is overheating. If you experience this, you should take your vehicle to the auto mechanic at once to prevent damage to your engine from overheating.

Filip is a lifelong car enthusiast with over 3 years of experience writing about cars and had worked as a mechanic apprentice for over 5 years, gaining hands-on expertise in automotive mechanics. At REREV, he combines his passion for cars with his comprehensive knowledge to provide readers with a unique blend of technical insight and engaging storytelling that sets the bar high for automotive content.

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Car dashboard warning lights: the complete guide

Your car uses illuminating dashboard symbols to warn you if there’s an issue. but what do they mean.

Many motorists, including us at Carbuyer, have been caught off guard by an unexpected warning light blinking into life on our car’s dashboard. If you’re reading this, chances are the same thing has happened to you and you’re likely wondering what the symbol means. While some car dashboard symbols are there to warn you about critical issues, such as engine temperature or oil pressure, not every light denotes a serious problem.

Every time you start your car, most, if not all, of your dashboard warning lights should illuminate for a brief moment. This allows you to check that they’re working, but most should disappear once the engine is running .

Before we dive into the meaning of each symbol, we should note the importance of dashboard warning light colours. Generally, warning lights are split into three groups. Blue and green lights mean that a system, such as the headlights, is turned on, and does not relate to a fault. An amber light indicates that there is an issue with the car and, whilst it may still be drivable, the issue should be investigated as soon as possible. A red warning light is the most serious and should be dealt with immediately. It’s best to stop as soon as it’s safe to do so , turn the engine off, then check the car’s manual for advice before continuing on with your journey.

Some warning lights are used to draw your attention to something less serious, such as a door that’s not been closed properly or to let you know you’ll soon need to fill up with fuel. In modern hybrid and electric cars, a lack of engine noise means it’s often necessary to include a warning light telling you your car is on and ready to set off.

Even seemingly harmless issues can illuminate a dashboard warning light. One of the less urgent and easy-to-fix warnings that could flash up is the low windscreen washer fluid warning light. This is usually amber in colour, and although it’s not a serious mechanical fault, you shouldn’t ignore it – if something were to get on the windscreen and obscure your view of the road, it could be dangerous if you’re unable to wash it off quickly.

It goes without saying that much more serious issues, such as problems relating to the brakes, engine, oil or gearbox should be acknowledged as soon as possible, as a major mechanical failure whilst driving could put your life at risk. Pull over as soon as it’s safe to do so and wait for assistance to sort the issue before you continue your journey in these instances.

Most car warning lights are universal for all makes and models of cars, making them easier to recognise for any driver. Their location on or around the dashboard can vary, however, and we’d still recommend looking at your car’s handbook to double-check what they mean.

Read on to find out the most common and important dashboard warning lights you might come across in your car.

Engine warning light

The engine warning light, sometimes referred to as an engine management light or EML, illuminates when there is a potential problem with the engine. It looks like a stylised, old-fashioned engine and will illuminate either amber or red depending on your car and the severity of the issue. Even if your car sounds and feels normal to drive, it is very important to have your car checked as driving with an engine problem could lead to serious (and expensive) damage.

The EML can be triggered for many reasons, ranging from a fairly benign sensor issue to a complete engine failure, so a proper diagnosis is critical to prevent potential damage. Read our in-depth explainer to find out the most common causes of an EML .

Oil pressure warning light

The oil pressure light, shaped like an oil can, is one of the most serious dashboard warning lights, hence its red colour. Oil pressure is critical for allowing oil to circulate through your engine’s most vital moving components while it’s running. If there is an oil leak, too little (or too much) oil or an issue with the oil pump, serious damage can occur to the engine which will likely result in a big repair bill or even a write-off.

While you should never ignore any warning light, this one is especially important to heed; stop the engine immediately and consult the handbook. You may simply have to top up the oil to make the light go out, but there could equally be a much more serious issue that requires a garage to investigate.

Brake system warning light

The brake system warning light indicates another serious issue that will require urgent action. It will illuminate if you’ve accidentally set off with the handbrake still partially engaged – the light should vanish once the brake is fully released. Note that some cars may instead have the letter ‘P’ instead of an exclamation mark to represent that the parking brake is on. If this doesn’t solve the problem, or the warning light appears as you're driving along, pull over safely and call for roadside assistance or arrange for the car to be taken to a garage.

Potential causes of a brake system warning light include low level of brake fluid or a faulty pad wear sensor. However, it could also be a more serious issue with the braking system and you shouldn’t risk driving any further. It goes without saying that if the pedal feels spongy when you press it, or sinks all the way to the floor, then it’s easy to tell that a significant issue has occurred and the car should definitely not be driven.

Battery charge warning light

This warning light can indicate a number of things, all relating to the car’s battery and charging system. Modern cars have numerous complex electrical systems that may not function correctly unless the battery is charging. This can lead to failure of the headlights, power steering, brakes and even the engine itself.

The cause of the warning light may be as simple as a faulty battery that’ll need replacing. But it could also be due to a problem with the car’s wiring or, more seriously, a fault with its alternator or drive belt. Other signs of a failing battery could be dim headlights or an engine that’s reluctant to start. Most garages can check your car’s battery and charging system to identify what’s at fault, or you can test your battery yourself at home .

Temperature warning light

If you see the temperature warning light on at any time after start-up, then the engine is running too hot or there isn’t enough coolant (also called antifreeze) in the system. This may be due to a number of issues, all of which could leave you stranded in a cloud of steam. It could be that the car’s radiator is leaky, clogged or broken – you’ll likely see coolant dripping out if this is the case. It could also be due to a faulty water pump.

More serious is a blown head gasket, which can signal catastrophic failure if you don’t turn off the engine immediately. White smoke from the exhaust could be a sign of head gasket failure.

Some cars may use a blue temperature warning light as well. This light means that your engine is cold, so it should only appear when you are starting your car after it has been sitting for a while. The blue light isn’t one to worry about but it’s advisable not to push your engine too hard until it has disappeared.

In any event, if you notice this red light, stop the car immediately, as running hot for too long can lead to total engine failure. If your car is constantly overheating, it will need to be investigated by a garage.

Low-fuel warning light

This is fairly self-explanatory, but we’ll go through it anyway. This is a warning light that comes on when the amount of fuel in the tank has passed a certain level. It’ll usually come on when you’ve got around 50-70 miles of range, and is designed to give enough warning so you can find a fuel station. Running out of petrol won’t cause any mechanical damage, but stopping on the road due to running dry is an offence. If you run out of diesel, it’ll be necessary to bleed the air from the fuel lines and injectors before the engine will start properly. That means it’s more than simply topping up from a jerrycan.

If you’re using more fuel than you’d expect, it could mean that you have a fuel leak (check the ground under your car; especially your driveway or parking space), or your car’s on-board computer (ECU) is telling the engine to use more fuel than it needs. A garage will be able to check this for you.

Tyre-pressure sensor warning

Since 2014, it has been mandatory for manufacturers to fit tyre-pressure monitoring systems (TPMS) to their new cars in the EU. These clever systems monitor the amount of air in the tyres and can detect a drop in pressure.

If it does detect a drop, it will let the driver know by illuminating the tyre-pressure sensor warning light. This is important, because low tyre pressures can adversely affect braking and cornering and a sudden drop in pressure can cause a dangerous blow-out at high speed. If the TPMS system alerts you to low pressure, you’ll need to check and inflate the tyre. If it has an obvious puncture, you’ll need to change the wheel or use a puncture repair kit.

Traction-control warning light

You’ll most commonly see your car’s traction-control warning light when the wheels lose grip, usually in the rain or snow. It gives a visual indication that you’re close to the limit of grip. If it’s on constantly, it usually means it’s deactivated – either by a fault or by you switching the system off. If it’s the former, you’ll need to get the system checked, if it’s the latter, you should switch the system back on – check your car’s manual to find out how to do so.

Glow plug warning light (diesels only)

We won’t go into the technicalities of how a diesel engine works, but all you need to know is that they use glow plugs to heat up the combustion chambers before starting the car, allowing the fuel to go ‘bang’, thus creating a force to turn the wheels. The glow plug warning light will almost always illuminate before starting the car, but if it illuminates in normal running, it could indicate that something’s wrong with the plugs themselves or the systems and computers that control them. 

You may not notice anything wrong at first, but issues with glow plugs can cause combustion to occur slightly too early or too late (known as ‘knocking’). This likely won’t cause any damage to the engine, but it will make your engine sound a bit rough and not run as smoothly or efficiently as it should, resulting in a drop in fuel economy. You should take your car to a garage to investigate the issue.

Seatbelt warning light

These days, the vast majority of new cars come with a system to let you know if any of your passengers haven’t got their seatbelts fastened. There’ll usually be a light – as above – to tell you if this is the case.

Cars use pressure sensors in the seats and sensors in the seatbelts – so if there’s a certain amount of weight on a seat and the seatbelt isn’t secured, it’ll let you know. These warnings may be accompanied by an unusual noise, too.

Door/boot/bonnet warning lights

Like the seatbelt light, these lights don’t usually mean that there’s anything physically wrong with the car (unless the sensor that sends the signal to the light is itself faulty). Instead, they tell you that one of the openings – be it a door, boot or bonnet – is open.

This is often obvious if, for example, you’re putting the weekly shop into the boot or securing your children in the back seats. But these lights also tell you if a door, boot or bonnet hasn’t been shut properly and is only loosely closed, so they can be very useful.

Hybrid and electric vehicle warning lights

As electrified cars become ever more popular, they bring with them a new selection of warning lights to decipher. The following examples appear exclusively on hybrid and electric vehicles.

Ready to drive warning light

Unlike a standard petrol or diesel, a hybrid or electric vehicle will be virtually silent when starting up. To avoid any confusion, this light simply informs you that your car is ready to be driven, so there is no cause for concern.

Limited power warning light

Having a tortoise on the dashboard may look friendly but this warning light actually means that your vehicle is running on limited power. There are a number of faults that could be causing this lack of power and they vary in severity, but it can also indicate a very low charge in the battery, and is limiting your power to help you get to a safe place before energy runs out completely. It’s best to stop the car as soon as is safely possible and arrange for it to be taken to the garage for a diagnosis.

Battery charge level warning light

This light will appear if your battery is at a critically low level of charge. If you do not stop the vehicle soon, you could end up stranded. The best, and most obvious, course of action is to seek the nearest available charging point, whether this is at home or a public facility. 

Pedestrian alert system

Because electric and hybrid vehicles can be so quiet, especially at low speeds, it can be difficult for pedestrians to hear them approaching. In order to prevent any accidents, these vehicles are usually fitted with a system that emits a sound to alert pedestrians to your presence, without the aggression of using the horn. If this light stays illuminated, regardless of your speed, then there is a fault with this system. This will require a dealer visit in order to determine the problem.

Read our  Top five engine management light causes  and prevent your car from costly repairs.

• Car ownership

Charlie writes and edits news, review and advice articles for Carbuyer , as well as publishing content to its social media platforms. He has also been a regular contributor to its sister titles Auto Express , DrivingElectric  and  evo . As well as being consumed by everything automotive, Charlie is a speaker of five languages and once lived in Chile, Siberia and the Czech Republic, returning to the UK to write about his life-long passion: cars.

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What 18 Symbols On Your Car’s Dashboard Mean

By nick greene | jun 7, 2023, 1:04 pm edt.

When something goes wrong with your car , or if a feature you should know about gets activated, a signal funnels through the electrical system and into the dashboard. This illuminates a symbol on the dash, and these cover a wide range of issues—some of which may be serious. Here are the meanings behind 18 of these curious-looking markers (and what they look like, in case you need a reminder.)

Your dashboard may be different and the symbols may have altered designs or indicate slightly different things, so be sure to consult your owner’s manual. Some of these lights could portend a serious malfunction . Don’t ignore them. When in doubt, have a professional check it out.

Table Of Contents

1. engine temperature warning light, 2. tire pressure warning light, 3. oil pressure warning, 4. traction control, 5. engine warning, 6. anti-lock brake warning, 7. rear window defrost light, 8. battery alert, 9. fuel indicator symbol, 10. seatbelt reminder light, 11. airbag indicator, 12. fog lamp indicator, 13. air suspension warning, 14. lane departure warning, 15. washer fluid indicator, 16. cruise control indicator, 17. lamp out warning, 18. brake pad warning.

What it looks like: A pirate ship with its sails down as if to say, “I’m just a normal boat, no pirates here.”

What it means: Your engine is too hot, friend. Here is a useful guide for what to do if your engine overheats.

What it looks like: A Buckingham Palace guard telling you the field goal is good !

What it means: The pressure in one or more of your tires is too low and needs to be attended to.

What it looks like: You’re about to get three wishes.

What it means: Your engine is running low on oil, or there is a problem with your car’s oil pressure system.

What it looks like: Cthulhu wearing a fedora.

What it means: The car’s traction control system is engaged.

What it looks like: Yellow submarine, a yellow submarine, a yellow submarine.

What it means: It can blink on to warn you of a number of issues , from minor (a loose gas cap) to major (wiring problems).

More Articles About Cars:

What it looks like: The cover of a fitness magazine.

What it means: There is an issue with your anti-lock brake system that needs to be diagnosed and fixed.

What it looks like: An aerial view of snakes slithering through windows into your house.

What it means: The rear-window defroster is engaged, so any condensation should clear up in a jiffy.

What it looks like: Math LEGO .

What it means: The car’s charging system is short of power. You are running solely off the battery.

What it looks like: A snake-infested ATM.

What it means: You are running low on fuel. Also: the symbol on the fuel gauge has an arrow next to it—this indicates which side of the car has the gas cap. No more gas station three-point turns in rental cars ever again!

What it looks like: Zorro if he messed up drawing his initial with his sword.

What it means: Buckle your seatbelt , please.

What it looks like: A man sitting calmly in a lawn chair gazing at the sunset.

What it means: There may be an issue with one or more of your car’s airbags, or the airbag system in general.

What it looks like: A jellyfish leaping through a waterfall.

What it means: Your fog lights are on.

What it looks like: Your bass is so loud your car bounces up and down.

What it means: There’s a problem with the car’s air suspension system, which includes inflatable bags meant to make the rider smoother.

What it looks like: A Mayan pyramid.

What it means: You seem to be drifting out of your lane unintentionally—get your eyes on the road!

What it looks like: A conductor’s point of view, tapping her music stand and preparing to lead an orchestra consisting of two candy canes that are stuck together.

What it means: The washer fluid level is low. Please fill that up when you get a chance.

What it looks like: A sundial indicating 10 a.m.

What it means: You’ve turned on cruise control. When the light is orange, it's waiting for you to set the preferred speed. When it turns green, you’ll be traveling at that speed.

What it looks like: A shiny gold medal from the Shouting! Olympics!

What it means: One of the car’s lamps—the headlight, taillight, or other exterior light—has burned out. You should probably get the bulb replaced before you get a ticket.

What it looks like: You’re staring down the drain of your kitchen sink.

What it means: The car’s brake pads are getting too thin. Time to get them inspected and replaced.

A version of this story ran in 2016; it has been updated for 2022.

Dashboard Warning Lights Guide

If you see a warning light on your dashboard (or touch screen, or the car’s smartphone app...) that means something went wrong. But some warning lights are more intuitive than others, especially those that have been around for a long time.

New cars are more complicated than most of us would have imagined just a decade or two ago, and they’re changing every year, with bigger screens, more efficient powertrains and more technological integration. As more cars incorporate electrification and semi-autonomous driving advancements, traditional instrument lights and warnings will increasingly go by the wayside as new ones take their place, but it’s still important to know what they all mean.

Any new car on a dealer lot today, even the most basic, likely has an advanced safety system that consists of cameras and sensors tied into the car’s main computer network, though the complexity varies based on the car’s level of safety tech and driver-assistance technology. Combine that with a central infotainment system controlling a lot of the car’s functions, and any minor problem can turn into a major one.

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A warning light on the dashboard or instrument cluster (or infotainment display, or smartphone app) means something went wrong. Some are more intuitive than others, even though the methodology and design of warning lights has stayed fairly consistent over the years.

A red light indicates a major problem or failure, and you should prepare to stop as soon as it’s safe to do so. A yellow or amber light calls your attention to a condition you should be aware of, such as the traction control system activating on a wet or slippery surface. A green, blue or white light means you’re using a feature, like the headlights or a particular safety feature.

Let’s take a look at these lights, keeping in mind that they may vary somewhat. If you aren’t familiar with the lights in your car, this is a good primer, but always have your owner’s manual at the ready.

Check Engine Light

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The check engine light, or CEL for short, is one of the most common dashboard warning lights but also one of the least specific. That’s because the check engine light warns of any engine-related issue. This can include something as simple as a loose gas cap (which may have a warning light of its own), or a more serious issue like a misfire, knocking or a loss of compression, which could result in premature engine wear or failure, which may leave you stranded and will be expensive to fix.

Protect Your Vehicle from Unexpected Repairs

The check engine light can be red or amber, and it typically features the outline of an engine, the words "service engine soon" or simply "check engine" in bold letters. Some owner’s manuals also refer to it as the malfunction indicator light, or MIL.

It is completely normal for the check engine light to illuminate momentarily when turning the key in the ignition, but it should disappear as soon as the vehicle is running. If not, the system is detecting an issue. Due to the potential for severe engine damage, we don’t recommend driving your vehicle if the check engine light is on. Call for a tow truck and have a repair shop diagnose and fix the issue.

Engine Coolant Temperature Light

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The engine temperature light features a red thermometer. When illuminated, it indicates that the engine is overheating. This is a serious problem and it can result in catastrophic engine damage, so if you see this warning light, you should always pull over as soon as it’s safe to do so and turn off your vehicle. There are a number of issues that can cause the engine to overheat, such as a broken water pump, a stuck thermostat, a leak in the radiator or in one of the coolant hoses or a blown head gasket.

Transmission Fluid Temperature Light

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The transmission temperature light is often depicted as a yellow or red thermometer surrounded by a gear, or with the words "AT OIL TEMP." When illuminated, this light indicates that the transmission is overheating. As before, you should stop and turn off your vehicle when it’s safe to do so if you see this warning light. Common reasons for an overheating transmission include low fluid levels, worn internal components, high mileage or extended periods of heavy towing.

Engine Oil Pressure Light

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The engine oil pressure light is typically depicted as a red oil can, and it signifies that oil is not circulating properly through the engine. This is a major issue because insufficient oil pressure can cause an engine to wear prematurely or even seize up, and it’s another light that means you should pull over and turn off the vehicle as soon as you can. Common reasons for low oil pressure include low oil levels, a worn oil pump and other worn internal components. It’s a good idea to check the engine oil level regularly and change the oil at the manufacturer-specified intervals.

Engine Oil Change Light

The oil change light does exactly what you’d expect: it indicates when the engine oil should be changed, based on mileage driven. Most modern vehicles require synthetic oil, which has allowed automakers to stretch oil change intervals from the traditional 3,000-mile limit to anywhere from 5,000 to 15,000 miles in some cases. You may see this indicator displayed as text instead of as a light, such as "Service Engine Soon" or "Oil Change Required." Some automakers refer to this feature as the oil life indicator as well.

Battery Warning Light

The battery indicator light is red and it features the outline of a battery with plus and minus symbols. When illuminated, this light indicates that the vehicle’s charging system isn’t functioning properly. The battery could be the issue, but the cause could also be a loose or corroded battery cable, a worn alternator, a broken accessory belt or another electrical fault in the system.

It’s completely normal to see this light turn on and then off when starting your vehicle. If the light turns on while you’re driving, though, you should pull over and stop as soon as it’s safe to do so. Otherwise, the engine will stall once the battery is completely drained, which may only take a few minutes.

EVs also have battery warning lights. A battery symbol with a lightning bolt means the battery’s charge level is low (this may also appear in plug-in hybrid vehicles) and a battery symbol with a temperature gauge means the battery is running hot, and the car should be pulled over and shut off as soon as it is safe to do so.

Tire Pressure Warning Light

The tire pressure warning light is depicted as a yellow tire with an exclamation point in the middle. This warning light signifies that one of the vehicle’s tires is underinflated, and – in some modern vehicles – it can show the pressure of all four tires and indicate which is low.

The tire pressure monitoring system (or TPMS) is responsible for activating this light. If it turns on while you’re driving, you should pull over and stop as soon as possible. Driving with a flat or underinflated tire is unsafe, as it can drastically alter the vehicle’s handling. Call for a tow truck if any tire is flat, or change the tire if your vehicle is equipped with a spare. If the tires are all still inflated, you should drive to the closest service station to check the pressures and add air if necessary.

Common reasons for this light to turn on include a puncture, a faulty tire pressure sensor or gradual loss of pressure due to seasonal temperature changes.

Reduced Engine Power Light

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Modern vehicles are equipped with a fail-safe system, or limp mode, that limits engine performance if a major fault is detected. This setup is designed to protect the engine, transmission and other driveline components from damage. The system triggers the engine light to turn on, and – in some vehicles – a "reduced engine power" readout may also illuminate.

While the vehicle may still be drivable, it’s best to pull over and stop due to the potential for damage. A faulty throttle position sensor is one of the most common reasons for this light to turn on.

Brake Warning Lights

The brake warning light features a red circle with an exclamation point or "P" in the middle, or simply the text "BRAKE." When illuminated, this light can indicate such things as routine notifications that your parking brake is engaged to warnings that there's a fault in your braking system, such as a failing master cylinder. If you unexpectedly have a brake warning light come on, first pull off the road, then set and release your parking brake. If the light does not turn off, it's time to call a tow truck before the system fully fails or more damage occurs.

It could be something as simple as a sticky parking brake, low brake fluid or worn brake pads. More serious issues, including problems with the master cylinder or the computers that handle your car's braking system, may be the culprit.

ABS Warning Light

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The ABS light features a yellow or red circle with the letters "ABS" in the center, and it illuminates when a problem is detected with the anti-lock braking system or when the system is active. Generally, if it's flashing while you're braking, the system is functioning as intended. If it's on constantly, there's a problem with your anti-lock braking system.

ABS improves braking performance on slippery roads by pulsing the brakes to prevent the wheels from locking up and skidding. The brakes should still function if this light comes on while driving, but emergency braking performance may be reduced. If you notice any changes to your braking response or pressure when this light comes on, pull over and stop. Common causes for this light to turn on include a faulty wheel speed sensor or an issue with the ABS controller.

Traction Control Warning Light

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The traction control system works hand in hand with the anti-lock braking system. It selectively applies the brakes to limit the wheels from slipping during acceleration, and it often engages when driving on icy and snowy roads, wet pavement, sand and gravel. The yellow traction control light – a car with two squiggly lines underneath – illuminates momentarily when the system is intervening. If the light stays on, however, that means there is a problem with the system and it may not operate properly. A faulty wheel speed sensor is one of the most common reasons for this light to turn on.

Stability Control Warning Light

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Electronic stability control, or ESC, is another aspect of the anti-lock braking system. Stability control works to keep the vehicle heading in its intended direction. It does this by monitoring wheel speed and steering inputs, and then applying the brakes as necessary to prevent sliding or spinning. Some vehicles have a dedicated "ESC" or "VSC" warning light that illuminates when the system is engaging and stays lit if there is a fault, but many vehicles don’t. In those instances, the traction control warning light turns on instead.

Power Steering Warning Light

The power steering light features a red or yellow steering wheel icon, often with an exclamation point on the side. It illuminates when a problem is detected with the steering. If your vehicle is equipped with electric power steering (EPS), you’ll need to take it to a mechanic to get the issue diagnosed. If the car has hydraulic power steering, however, the light often means that the power steering fluid reservoir is low. Top it off and keep an eye out for leaks. Schedule a service appointment if this doesn’t fix the issue.

It is not safe to drive the vehicle if this light comes on, even if you don’t notice any problems right away, because a gradual or sudden lack of power steering assistance will make the car much harder to maneuver.

Airbag Warning Light

An illuminated airbag light indicates that there is a fault with the vehicle’s airbag system, which is often referred to as the supplemental restraint system (SRS). This indicator light typically features a red airbag icon, though in some vehicles it is replaced by "SRS" or "AIR BAG" text.

You should not drive your vehicle if this light turns on, because it means that the airbags may not deploy in the event of a crash and the seat-belt pretensioners may not tighten appropriately. Have a qualified repair shop diagnose and fix this problem.

Seatbelt Warning Light

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The seat-belt light does exactly what you’d expect: it features the outline of a person wearing a seat belt, and it stays illuminated until the driver of the vehicle buckles up. Some vehicles also monitor the front passenger seat with weight sensors in the seat that communicate with the car’s computer. If all occupants have buckled up and the light doesn’t turn off, this may mean there is a problem with the belt buckle sensor or one of the pressure sensors under the seat.

Automatic Shift Lock Light

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Modern automatic transmissions are equipped with a shift interlock, which prevents the vehicle from shifting out of park until the driver has pressed the brake pedal. In some vehicles, it can also prevent the engine from starting. This reduces the risk of the vehicle rolling away if the gear selector is pushed accidentally. The shift lock light features a green foot within a circle, and it turns on to show when the system is active.

Low Fuel Warning Light

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The low fuel light features an amber or red gas pump, and it illuminates when the fuel tank is almost out of gasoline or diesel fuel, depending on the type of vehicle. The fuel level required to trigger this warning light can vary from vehicle to vehicle, but it often indicates about one to two gallons of fuel remaining. Additionally, this light may turn on if the gas cap is loose.

Washer Fluid Warning Light

The washer fluid light illuminates when a low level of windshield washer fluid is detected. This indicator light is typically yellow and it features a windshield icon. The same symbol is located on the cap of the washer fluid reservoir, so you can easily tell where to add the fluid. Most vehicles only have one washer fluid reservoir, even if there are rear windshield wipers with washers, and it’s usually found under the hood. In cars with rear washers, the washer fluid reservoir typically has a separate pump and hose that moves fluid to the rear glass.

Engine Stop-Start Light

Many modern vehicles are equipped with automatic stop-start systems that are designed to save fuel in stop-and-go city driving. These systems can shut the engine off when the vehicle is slowing to a stop and quickly turn the engine back on once the brake pedal is released. This reduces the amount of time the engine is idling when sitting in traffic.

The engine stop-start light is typically an "A" surrounded by a circular arrow, and it can indicate a few different things. It may illuminate in a green or blue color to show that the system is active, or in an amber color to show that the system has been disabled. An exclamation point next to this icon usually indicates a fault with the stop-start system.

Security Light

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The security light may turn on for a few reasons. It may illuminate and disable the ignition system if the incorrect key is inserted. The light may indicate a fault with the ignition if it illuminates while driving. The most common reason is to deter thieves. When the vehicle is parked and locked, it’s typical for the light to blink occasionally to indicate that the alarm system is armed. The design of this indicator light can vary, but it usually features the outline of a car with either a key or a padlock icon.

Glow Plug Light

Diesel engines are equipped with glow plugs, which are designed to heat up the combustion chamber and assist with starting the engine when it’s cold. It takes a few seconds for glow plugs to sufficiently warm up the engine air temperature, and they shut off once it is hot enough.

The amber glow plug light – a squiggle with two loops – illuminates to show that the glow plugs are warming up. The light turns off once the engine is ready to start. If the glow plug light blinks or remains on, it indicates that there may be a problem with this system and the vehicle may be difficult to start.

Hampi | Getty Images

In addition to glow plugs, diesel vehicles are also equipped with a diesel particulate filter (DPF), which collects engine soot and ash as it travels through the exhaust. This filter improves emissions and reduces the amount of smoke coming from the tailpipe; however, it can become clogged over time.

The DPF light illuminates when the filter is blocked and requires cleaning or replacement. This warning light is usually amber in color, and the design often features a box filled with small circles or a puff of smoke passing through a line of circles.

U.S. News & World Report | John M. Vincent

The diesel exhaust fluid light, or DEF light, is the third warning light that diesel vehicle owners should be aware of. This light looks very similar to the DPF light with the addition of two droplets to symbolize the fluid. The light turns on when a low level of diesel exhaust fluid is detected, often followed by text warnings to refill the DEF reservoir. This fluid is a mixture of urea and deionized water that is injected into the exhaust system to reduce nitrogen oxide emissions. Another common name for DEF is AdBlue.

You should refill the DEF tank as soon as possible when this light turns on. Otherwise, the engine could enter a reduced-power mode or stop altogether if the tank is fully empty.

Cruise Control Light

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The cruise control light typically features a speedometer icon, and it can indicate a few different things depending on the color. Green often means that the cruise control has been set. An amber or yellow light can indicate that cruise control is enabled but not set, or that there is a problem with the system. Refer to your owner’s manual for specific information about the cruise control system in your vehicle.

Adaptive Cruise Control Light

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Adaptive cruise control uses forward-facing cameras and sensors to maintain a set cruising speed and distance to the car ahead. When engaged, adaptive cruise control can slow the vehicle if the car ahead begins to slow. Conversely, it can return the vehicle to the desired cruising speed if the car ahead accelerates or merges into another lane.

There are a few common dashboard lights related to the adaptive cruise control system. You may see text that reads "ACC," a speedometer icon with a car behind it, or a car with waves in front of it. These lights typically indicate that the system is enabled. A series of bars between two vehicle icons usually indicates the desired following distance to other cars. Refer to your owner’s manual for additional information about this system.

Forward Collision Warning Indicator

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If your car is equipped with forward collision warning, this light will let you know that the car needs your attention. When your car's forward-collision warning system senses that you're closing on the vehicle ahead of you too fast, you'll see a dramatic flashing red or amber light screaming "Brake." You'll need to immediately brake to avoid a collision or reduce the severity of an inevitable crash. An audible warning usually accompanies the flashing light.

Lane-Departure Warning Light

As its name suggests, the lane-departure warning system alerts the driver if the vehicle is drifting out of its lane. Common alert methods include "LDW" or "LDA" warning lights, a symbol of a car veering out of a lane, audible beeping and – if bundled with lane keep assist – a tug at the steering wheel to correct the vehicle’s path.

Parking Assist Light

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If your vehicle is equipped with parking sensors, you might see a warning light with a "P" and a triangle separated by waves. This symbol may also be accompanied by audible beeping or a bird’s eye view of the vehicle. It indicates that either the front or rear bumpers are in close proximity to an object, but it may also indicate a potential issue with this system. Refer to your owner’s manual for additional info.

Blind-Spot Monitoring Light

Blind-spot monitoring systems use sensors at the sides and rear of the vehicle to detect other cars that may be obstructed by the driver’s field of view. These systems typically alert the driver by illuminating an icon – two staggered cars separated by waves – in the side mirror on the side of the approaching vehicle. You may also see "BSM" or "BLIS" lights on the dashboard. These lights can indicate that the system is operating, but they can also indicate a potential issue. Again, refer to your owner’s manual for more detailed information.

Drowsiness Monitoring Light

Mercedes-Benz USA

Driver-attention monitoring systems use a number of sensors to detect if the driver is paying attention to the road. Most systems look for telltale signs like constant steering wheel corrections and extended driving distances without a break, but some advanced systems can also monitor eye movements. These systems typically alert the driver by flashing a coffee cup symbol on the dashboard, as well an "attention assist" or "time for a break" message.

Master Warning Light

Master caution warning lights, common to high-performance aircraft, are finding their way into today's cars and trucks . The master warning light (or instrument panel message) tells you to check other systems for issues. For example, it may illuminate to tell you to check your tire pressure monitoring system or the vehicle's maintenance status. In some cars, it will remain illuminated until the underlying issue is corrected.

Fog Lamp Indicator

The fog lamp indicator lets you know if your fog lamps are on or off. If it's illuminated, they're on; if not, they're off. In most states, driving with your fog lights on is unlawful while traffic is approaching from the other direction.

Gearbox Warning

A gearbox warning is similar to a transmission fluid temperature warning light and sometimes shares the same spot on the dashboard. It indicates a fault in the transmission or components. Its illumination can be caused by something as simple as low transmission fluid or a mechanical problem that's much more serious. Ignoring a gearbox or transmission warning light can lead to potentially expensive repairs or a failure while in traffic.

Gas Cap Indicator

Most cars don't have a gas cap indicator light, but the first step in investigating a check engine light is ensuring the gas cap is present and properly tightened. A leading cause of check engine lights is a loose or missing fuel cap.

Some, but certainly not all, cars will alert you if your fuel door is open. Most electric vehicles will tell you if the charging port door is open.

High-beam Headlight Indicator

A basic high-beam headlight indicator will light up blue when the high-beam headlights are on and turn off when you switch back to your low-beam headlights.

Automatic High-Beam Headlight Indicator

In newer cars with automatic high-beam headlights, there will typically be an "A" next to the high-beam headlight indicator to show that the automatic high-beams are active. In many vehicles, the icon will change from white to blue when the automatic system switches from low to high beams.

Door/Trunk/Hood Open Warning

Most vehicles on the road today have dashboard warnings that let you know if you have a door, trunk, hatch or hood ajar. Some let you know which one it is, while others let you sleuth it out yourself. It's a good idea to check any opening that triggers a warning, even if you think it's closed, because it may not be fully latched.

In some cars, the warning is a simple icon. In others, it's a high-definition image of the vehicle with the relevant area illuminated.

Electric Vehicle Dashboard Warnings

Electric vehicles have several dashboard warnings and displays that cars with internal combustion engines don't have. Some include charging status, range and time to charge. Since electric cars are nearly silent, a dash message or indicator will tell you when the vehicle is ready to move.

One of the most critical electric car indicator lights, as mentioned earlier, is a battery pack overheat warning. It's a signal to park the vehicle outside, as the battery cooling system may have failed. Another EV-specific light worth noting is a symbol of a car with an exclamation point. This indicates a fault somewhere in the car’s electrical system, and you should get the vehicle serviced immediately if it comes on.

ECO Driving Indicators

Two types of dashboard indicators indicate how economically you're driving. The first just notes when you've set your vehicle dynamics system to its Eco mode, limiting the car's performance to increase fuel efficiency. The second is an active indicator that monitors how you're driving and lets you know when you're driving in an economical manner. These systems may vary, particularly in cars that have more sophisticated Eco modes, and aren’t necessarily limited to EVs or hybrids .

Four-Wheel-Drive/All-Wheel-Drive Indicators

If your vehicle is equipped with four- or all-wheel drive, you'll have a few additional indicators on your dash. In vehicles with four-wheel drive, there will be an indicator that shows whether you're in two-wheel drive, four-wheel drive high range or (if equipped with a two-speed transfer case) four-wheel drive low range. There may be additional indicators for locking differentials, hill descent control and other systems specifically for four-wheel drive or off-road driving modes.

Vehicles with all-wheel drive will have an indicator that warns you if there's a fault with your drivetrain.

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The 89 Most Common Symbols On Your Car’s Dashboard

• Updated: March 10, 2024

We’re all familiar with that moment of uncertainty when a warning light flashes on our car’s dashboard. It leaves us scrambling for the manual, attempting to decipher what the illuminated symbol signifies.

In this article, we will guide you through the top 89 most common car dashboard symbols and their meanings, empowering you with knowledge for the next time a warning light appears. By recognizing what these lights indicate, you can sidestep expensive repairs in the future.

Some dashboard symbols and warning lights are more common than others. Some are specific to certain car brands, while others will be seen on most car models on the market. We will begin by showing you the most common dashboard symbols that can be found in most car brands.

Here is a list of the dashboard symbols, and you can click on each name to get more information about the specific warning light.

Engine & Emission

1. Check Engine Light

A Check Engine light indicates an issue with the engine or the emissions. It can be shown either as an engine symbol or as plain text reading “Check Engine”. Read More

2. Anti-lock Braking System

An ABS light indicates there is an issue with your anti-lock brakes or Anti-lock braking system (ABS). Read more

3. Airbag Indicator

An airbag light means that there is an issue with the airbag system. The airbags will not deploy in an accident with the light on. Read more

4. Oil Level Warning Light

A yellow oil level warning light indicates a low engine oil level. The oil level should be checked as soon as possible. Most likely due to an oil leak.

5. Oil Pressure Warning

A red oil pressure light indicates low oil pressure in the engine. Your engine should be switched off immediately to avoid damage when the oil pressure warning light shows. Read more

6. Battery Charge Warning

A battery charge warning symbol means that the generator is not charging the battery properly and that your engine is at risk of shutting down due to low battery capacity. Read more

7. Coolant Temperature Warning Light

An engine temperature warning light means that the engine coolant temperature is high and that the engine should be turned off immediately to avoid further damage. Read more

8. Tire Pressure Warning Light

A tire pressure warning light indicates low air pressure in one or more tires. It can also be caused by a faulty or uncalibrated tire pressure sensor. Read more

9. Traction Control/ESP Light

An ESP or Traction control light indicates an issue with the traction control system. Your traction control system will not work when the light is on, and this can be dangerous. Read More

10. Service Engine Soon

A Service Engine Soon message indicates minor trouble with the engine or low fluid levels. Read more

11. Low Washer Fluid Light

A washer fluid symbol means that the windshield washer fluid level is low or has incorrect measurements.

12. Automatic Shift Lock Symbol

An automatic shift lock symbol indicates the brake pedal is not pressed. The car will not start, and the shifter won’t move out of Park.

13. Reduced Engine Power

A Reduced engine power car light means that there is an issue with the engine and the power is reduced to protect the engine. Read more

14. Lambda Warning Light

A lambda warning light indicates there is an issue with the air-fuel mixture or an issue with the oxygen sensors. This light is more common in older car models.

15. Low Coolant Indicator

A low coolant warning light indicates there is a low coolant level in the coolant reservoir or an issue with the coolant level sensor. Check for leaks around the radiator, radiator cap , coolant hoses, or water pump.

16. Glow Plug Indicator (Diesel)

A glow plug symbol indicates there is an issue with the glow plugs or the glow plug control system.

17. Fuel Filter Level Warning

A fuel filter level warning light means that the water-trap in the fuel level is full and needs to be emptied.

18. Power Steering Level Symbol

A power steering level warning light indicates the power steering fluid level is low, or there is an issue with the level sensor.

19. Electronic Throttle Control Light

An electronic throttle control (ETC) warning light indicates there is an issue with the engine’s electronic throttle body or the system.

20. Particle Filter Warning (Diesel)

A diesel particulate filter warning light indicates there is an issue with the diesel particulate filter system (DPF), or that the particle filter is full and needs regeneration or replacement.

21. Low Fuel Level

A low fuel level symbol means that the fuel tank level is low or that there is an issue with the fuel level measuring system. There could also be an arrow, indicating which side your gas cap is on.

22. Catalytic Converter Warning

A catalytic converter warning light indicates there is an issue with the catalytic converter control system, or the catalytic converter is damaged.

23. Master Warning Light

A master warning light normally shows up together with another warning light and means that there is an issue with your car. Let a mechanic take a look.

24. Blinking Engine Light

A blinking or flashing engine light indicates there is an issue with your engine ongoing right now. A flashing light is normally triggered by a misfiring engine. Read more.

25. Transmission Temperature Warning

A transmission temperature warning light indicates the transmission temperature is too high, or there is an issue with the temperature measurement.

26. Traction Control Off

The traction control off symbol means that the traction control is manually switched off.

27. Powertrain Fault

A powertrain fault symbol indicates there is an issue with the powertrain or drivetrain system, like the 4WD or AWD system, for example.

28. Overdrive Off indicator

An overdrive off symbol means that the automatic transmission overdrive system is switched off. Read more

29. Parking Brake Light

A parking brake warning light indicates the parking brake is engaged, or there is an issue with the parking brake system

30. Differential Temperature Warning

A differential temperature warning light indicates the differential temperature is too high, or there is an issue with the measurement system.

31. DTC Warning Light

A DTC warning light means that there is an issue with the BMW traction control system.

32. ESP BAS

An ESP BAS warning light indicates an issue with the electronic stability program or brake assist program.

33. Automatic Gearbox Warning

An automatic gearbox warning indicates an issue with the automatic transmission or the system controlling it.

34. Brake Pad Warning

A Brake pad warning light means that the front or rear brake pads are worn and need to be replaced.

35. Brake Warning Light

A brake warning light indicates an issue with the brake system. This should be checked immediately because you may lose your brakes otherwise.

36. Service Vehicle Soon

A service vehicle soon symbol indicates there is an issue with the ABS, traction control, or electric suspension system.

37. 4WD Engaged Indicator

A 4WD engaged symbol means that the four-wheel-drive system is engaged.

38. 2WD Engaged Indicator

A 2WD engaged symbol indicates the 4WD system is switched off and the car is sending power to two wheels only.

39. All Wheel Drive (AWD/4WD)

An All Wheel Drive symbol indicates that the AWD or 4WD system is engaged.

40. Hazard Lights On

A hazard lights symbol means that the hazard lights are turned on.

41. Door Ajar Symbol

A door ajar symbol indicates that one of the doors is open or there is an issue with the door switch system.

42. Hood Open

A hood open symbol indicates that the hood is not closed properly. It is very dangerous to drive with a hood that is not secured at higher speeds.

43. Lane Departure Warning

A lane departure warning light indicates the vehicle is moving out from the lane without signaling

44. Forward Collision Warning

A forward-collision warning light means that there is a potential collision detected.

45. SRS Light

An SRS warning light indicates there is an issue with the airbag or supplemental restraint system. Read more

46. Seatbelt Indicator

A seatbelt symbol indicates one or more seat belts are not closed or there is an issue with the system. Check both the driver and passenger sides and the rear seats on some car models.

47. Side Airbag Warning Light

A side airbag warning light indicates the side airbags are turned off or there is an issue with the side airbags.

48. Power Steering Warning Light

A power steering warning light means that there is an issue with the power steering system

49. Icy Road Warning Light

An icy road warning light indicates the outside temperature is cold and that there is a risk of an icy road. Slow down!

50. Distance Warning

A distance warning indicates the front radar detected that your vehicle is too close to the car in front or is being approached too quickly.

51. Bonnet Open

A bonnet open symbol means that the bonnet is not closed properly, or there is an issue with the bonnet lock switch.

52. Headlight Range Control

A headlight range control warning light indicates there is an issue with the headlight range control system

53. Exterior Light Fault

An exterior light warning light indicates an issue with one or more exterior lights, usually faulty light bulbs.

54. Highbeam Light Indicator

A high beam light symbol means that the high beam lights are turned on

55. Auto High Beam Lights

An auto high beam lights symbol means that the auto high beam system is turned on

56. Position Light Indicator

A position light symbol will turn on when the headlights are switched off and the position lights are on

57. Low Beam Indicator Light

A low beam light symbol is turned on when the low beam headlights are turned on

58. Front Fog Lights On

A front fog light symbol is illuminated when the front fog lights are turned on.

59. Rear Fog Light On

A rear fog light symbol is illuminated when the rear fog lights are turned on.

60. Turn Lights Warning Symbol

A turn light warning symbol indicates that there is an issue with the headlight’s turn-light system.

61. Windshield Defrost Indicator

A windshield defrost symbol indicates that the windshield defroster is turned on.

62. Rear Window Defrost

A rear window defrost symbol means that the rear window’s defroster is turned on.

63. Cruise Control On Indicator

A green cruise control symbol indicates the cruise control is switched on and engaged.

64. Cruise Control Warning

A cruise control warning symbol indicates there is an issue with the cruise control or throttle control system.

65. Cruise Control Speed Limiter

A cruise control speed limiter symbol means that the cruise control system will limit the max speed.

66. Cruise Control SET Indicator

A “SET” symbol indicates that the cruise control is set to a fixed speed and trying to hold the speed.

67. Shift Up Indicator

A shift up symbol indicates that it’s time to shift up to a higher gear.

68. Shift Down Indicator

A shift down symbol means that it’s time to shift down to a lower gear.

69. Auto Windshield Wiper

An auto windshield wiper symbol indicates that the auto wiper system is turned on.

70. Recirculated Cabin Air

A recirculated cabin air symbol indicates that the car will recirculate the air inside the car instead of taking air from the outside of the car

71. Heater Blower Fan On

A heater blower fan symbol means that the blower motor is turned on.

72. Heated Seats On

A heated seat symbol indicates that one or more seats’ heating system is turned on.

73. Hill Descent Control

A hill descent control symbol indicates that the hill descent system is turned on and will limit the car’s speed while going downhill.

74. Steering Lock Warning Light

A steering lock warning light means that there is an issue with the steering lock or that the car key is not recognized

75. Brake Fluid Level Warning

A brake fluid level warning indicates that the brake fluid level is too low, or there is an issue with the measurement system.

76. Key Not in Vehicle Indicator

A Key Not in Vehicle symbol indicates the car’s immobilizer system can’t reach or recognize your car key.

77. Immobilizer Indicator

An immobilizer symbol means that it can’t reach or recognize your car key, or there is an issue with the immobilizer system.

78. Ignition Switch Warning

An ignition switch warning symbol indicates that there is an issue with the ignition switch system.

79. Low Electric Battery Charge

A low electric battery charge symbol indicates that it’s time to charge your electric vehicle’s battery.

80. Brake Lights Warning

A brake light warning light indicates that the brake lights are not working.

81. Air Suspension Warning

An air suspension warning symbol means that there is an issue with the air suspension system.

82. Suspension Warning Light

A suspension warning light shows up when there is a malfunction with the electric suspension system.

83. Car on Ramp Mode

A car on ramp mode warning symbol turns on when the car’s tires are raised up in the air or when the repair mode is activated.

84. ECO Mode On Indicator

An ECO Mode on symbol indicates that the Economy system is turned on. Read more

85. Rear Spoiler Warning

A rear spoiler warning light indicates that there is a malfunction in the rear spoiler electric system

86. Lane Assist

A green lane assist symbol indicates that the lane assist system is turned on.

87. Exhaust Fluid (Diesel)

An exhaust fluid warning light means that the exhaust fluid (AdBlue) level is low in your diesel car.

88. Convertible Roof Warning Light

A Convertible Roof Warning Light indicates that the convertible roof system is opening or closing.

89. Blue Coolant Temp Light

A blue engine temperature symbol means that the engine is still cold and you should drive carefully.

• Toyota Dashboard Lights
• Lexus Warning Lights

Categories: General , Warning Lights

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Navigation Lights for Sailboats (And How To Read Them)

Last Updated by

Capt Chris German

June 15, 2022

Navigation lights on a sailboat can be confusing. If you understand the reason behind why they are the way they are however, they can make a lot more sense.

At their heart, sailboats are really just a power boat and as such must adhere to all power boat rules such as navigation lights. Other times however, a sailboat is classified in a special category. They have a set of additional lights they CAN show as an option, but are not always required to do so.

That’s about as clear as mud if you ask me and I contend that that is where the confusion about lighting a sailboat begins.

Just because you can show a light to identify yourself in times of low visibility, does not mean you have to and then we add in a little sibling rivalry between power and sail and things get downright adversarial when it comes to navigation and the night.

Table of contents

The USCG says You’re a Power Boat Whether You Like It or Not

Much to the consternation of many a sailor who has earned a commercial license to drive their sailboat, when you received your credential from the USCG it says you are a master of steam and power across the top with no mention of wind as a source of propulsion.

It is not until you read the back pages of your little red book that feels like a passport and looks like a US Sailing credential, that you will see the term “sail auxiliary”. That is because most of the time the U.S. Coast Guard knows that you are primarily reliant on your mechanical power to propel your vessel.

It's a sad thing, but the days of commercially viable sail boats are done and all but the most select few even have sails let alone use them as their primary power source. All sail boats by law are powerboats, but not all powerboats are sailboats.

Navigation Lights for a Power Boat

As a power boat, you are required to show certain lights and have been required to do so before power was even invented. 

In the days of man powered vessels like the viking ships who relied on oars while in close quarters to power their vessels, they needed to show other boats, friend or foe, where they were by showing lanterns in the dark to identify themselves. As you know, it is a time honored rule among all the nations of the world both past and present, that you must avoid a collision at all costs while at sea and even the viking knew that you should not run into things.

By lighting the front and back of your boat, you could warn other boats of your presence as well as identify which way you were heading. As such there is a very specific rule in the Code of Federal Regulations Number 46 (CFR46 by common name) that spells out with detail how many, the color, the luminosity or brightness, the angle of visibility and the location of all of the lights required for navigation on every single boat, seaplane, submarine and other nondescript vessel conceived by man to date that they must show while underway in reduced visibility.

And there is no flexibility in the rules.

As such a power boat, and by extension all sailboats, MUST, without question show one green light on the starboard bow and one red light on the port bow and one all around white light or lights while operating in reduced visibility. These lights should shine at all 360 degrees of visibility with the bow lights shining at an angle of dead ahead to 22.5 degrees abaft the beam and the stern lights shining 225 degrees dead aft. A forward facing masthead light that is white in color shall shine forward to comply with the directive that all vessels must carry an all around white light. For more read here .

As you can see, there isn’t much wiggle room when it comes to lights that must be shown.

Sailboats get a little flexibility with lights

Sailboats however, are a little different when they are in fact sailboats, which is only when you are entirely reliant on the wind for power and in no way reliant on any mechanical or manual means of propulsion. And for good reason.

Back in the day when men were men and sailboats were wooden, fire was a major concern. Sails were coated with wax and other flammable substances and the wood on boats was saturated with oils and grease. Even the ropes were plant materials saturated with oils to keep them pliable and strong.

Add those highly flammable substances to a parching environment like the sea and you had what was essentially a giant floating tinderbox.

Then tell that giant floating tinderbox that they need to identify themselves to the world at large at night using oil lamps with flames because batteries and lights were not invented yet. It didn't take very long or very many ships burning to the water line for the Governments to say to the sailboats, you get to do things a little different.

As such, sailboats are given special dispensation when it comes to lights aloft. They don't have to show an all around white light in their rigging because no one wanted to set their rig on fire with oil lamps 60 feet up in their rig.

However, when a sailboat takes their sails down such as when they are powered or at anchor, they must resume the display of an all around white light or lights aloft. That became a real challenge with aluminum masts and the disappearance of rat lines on the shrouds because there was no easy way to climb the rig and check the bulbs up the mast on a regular basis. 

Red over Green Sailing Machine

I have no idea where the history of this particular light comes from, but if you ever take a deck exam with the USCG, you better remember this mnemonic. An all around red light over an all around green may be displayed on a vessel during times of reduced visibility to indicate that a vessel is operating under sail power alone. 

I won’t even speculate on how or why they came up with this particular light configuration, but if you want to use these lights as a sailing vessel, you can do so, but that means that you will need three all round lights at the top of your mast, an all around white, an all around red and an all around green, just in that order.

The red over green is to be displayed in addition to the running lights or the red and green bow lights with the 225 degree stern light. As always, when the motor comes on, so does the steaming light or the forward facing white light that is also usually about ¾ of the way up on your mast to complete the requirement of an all around white light that indicates a power vessel.

What is a “steaming light” and why are you mentioning it now?

Most sailboat electrical panels will have a switch that is labelled “steaming light” and it will only come on when your anchor light is off. This is probably the most confusing part of sailboat navigation lights so if you are confused about this, you're in good company as most people are. 

A “steaming” light is named thusly, going back to the days of steam powered sailboats where when they fired up their boilers and doused the sails, they became a power boat once again. There aren’t too many steam powered boats, let alone steam powered sailboats, but the name stuck and it is a vestige of a bygone era.

Either way, when you fire up your motor, you turn on your “steaming light” and that locks out the all around white light which is used for anchoring to minimize the number of switches on your panel and reduce the number of wires in your mast. The fewer wires, the less chance of something not working or becoming disconnected.

The steaming light and the anchor light both go up the mast, but you can’t use an all around white light while using the 225 degree stern light at the deck level because to other boaters you would look like you have two white lights from the stern and that would be confusing.

The anchor light is used exclusively for anchoring while the steaming light is used to indicate you are a power vessel while underway.

As to why I am mentioning it now in the article, is because this would have blown your mind if I started with this subject cause it can be really confusing stuff.

Aspect Recognition with Lights

Remember when I said earlier that lights can help you tell others which way you are heading as well as tell you which way other boats are heading? That is called the aspect of the vessel and the USCG tests you on this for your deck exam as well. 

Knowing that the bow lights go 22.5 degrees abaft the beam on both sides or 112.5 degrees on each side, and the stern light faces 225 degrees aft for a total of 360 degrees of visibility, you can tell a lot about where a boat is heading and who has the right of way.

One thing that's easy to remember is red means stop and if you see a vessel's red light, it means stop as you are the give way vessel and approaching the other vessel from his port side. Conversely it works with green as well as that means you are approaching from the other vessel's starboard side and you are the standon vessel.

If you see a red and green light equally low on the horizon, that means your heading dead on into another vessel's path and conversely if all you see is a white light low on the horizon, it means you are overtaking another vessel power or sail, we don’t care because it is an overtaking situation. However, any time you do see a white light aloft in addition to the red and green bow lights, you know you are encountering a power boat.

Then there are angular approaches as well, where you see white and red or white and green light low on the horizon. You know in that case you are seeing a portion of the bow lights and stern lights from the side approaches of a vessel. Based on which direction those lights are heading, you can deduce which way that boat is going in relation to your boat.

So put it all together and you see a green light and a white light low on the horizon with a red over green light aloft, you know that you are approaching a sailboat that is traveling to your port and that might make you the standon vessel. That is of course, if we didn’t concern ourselves with windward and leeward and port tacks and starboard tacks, but that is a discussion for another article. So stay tuned when we talk about sailing rules and the right of way. But for now, do good, have fun and sail far.

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Capt Chris German is a life long sailor and licensed captain who has taught thousands to sail over the last 20 years. In 2007, he founded a US Sailing-based community sailing school in Bridgeport, CT for inner city youth and families. When Hurricane Sandy forced him to abandon those efforts, he moved to North Carolina where he set out to share this love for broadcasting and sailing with a growing web-based television audience through The Charted Life Television Network.

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Car Care Tips

Tips to keep your car on the road.

What All the Symbols on Your Car’s Dashboard Mean

We’ve all been there: You’re driving along, enjoying the views, and all of a sudden you hear a beep—you look down, and a symbol has appeared on your dashboard. You start to wonder what could be wrong with your car.

Some symbols on your car’s dashboard are easier to figure out than others. However, it’s important to know exactly what these warning lights mean in case you need to pull over and call for help.

Types of Car Dashboard Symbols

Not every symbol that appears on your dashboard is a warning light. Some have to do with vehicle features (like lights and cruise control) or safety (like blind-spot monitoring and lane departure warnings) or mechanical issues (like low tire pressure and engine temperature warnings).

When it comes to dashboard lights, colors matter! Green or blue lights simply let you know that a system is on or operating. Orange/yellow warning lights generally signify that your vehicle needs to be serviced or repaired soon. These warnings are less urgent than if you have a red and/or flashing light.

A red light means that you should take action immediately! Some red dashboard lights are safety warnings (like a seat belt reminder) and others are mechanical (like the engine overheating). If a red mechanical light appears, pull over as soon as possible and figure out what’s going on. Your vehicle will likely stop working or become damaged if you continue to drive.

As you read through this list, here are two things to keep in mind:

1. Every car is different, so the symbols on your dashboard may vary slightly from the ones on our list. If in doubt, consult your vehicle’s owner’s manual! 2. Many of these dashboard lights will illuminate briefly when you turn on your vehicle and performs a system check. As long as the lights turn off within a few seconds, everything is operating normally.

18 Common Warning Lights on Your Car’s Dashboard 

1. Oil Pressure Warning Light 2. Tire Pressure Warning Light 3. Engine Temperature Warning Light 4. Traction Control Alert Light 5. Anti-lock Brake System Warning Light 6. Traction Control Malfunction Light 7. Engine Warning Light (Check Engine Light) 8. Battery Alert Light 9. Low Fuel Indicator Light 10. Automatic Shift Lock or Engine Start Indicator Light 11. Seat Belt Reminder Light 12. Airbag Warning Light 13. Security Indicator Light 14. Fog Lamp Indicator Light 15. Washer Fluid Indicator Light 16. Brake Warning Light 17. Lane Departure Warning Light 18. Transmission Temperature Warning Light

1. Oil Pressure Warning Light

What It Means: This old-fashioned oil can symbol indicates that there is an issue with your car’s oil pressure system. Either you’re running low on oil or your oil pump isn’t circulating enough fluid to properly lubricate the surfaces inside your engine. (NOTE: Some car dashboards will display the word “OIL” instead of this symbol.)

What To Do: Poor engine lubrication can cause major engine damage, so this is an important warning to pay attention to! Pull over as soon as it is safe, turn off the vehicle, and check the oil! Look around the engine bay for obvious oil leaks, and then pull out the oil dipstick to check the fluid level.

If the oil level is low, then the light may go off when you add oil. If it has enough oil but the engine is running noisy, it might an issue with the oil pump. If the oil level is okay and the engine is running smoothly, your oil pressure sensor may be malfunctioning. In any case, it’s important to bring your vehicle in ASAP to let a mechanic take a look and address whatever is causing the low oil/low oil pressure.

Read: How Long Can You Go Without an Oil Change?

2. Tire Pressure Warning Light

What It Means: Also known as the Tire Pressure Monitoring System (TPMS) symbol, this image signals an issue with your tire pressure or the TPMS.

If the TPMS symbol is solid , then the pressure in one or more of your tires is too low or too high. If the TPMS symbol flashes for 60-90 seconds when you turn on your vehicle and then stays illuminated, even if your tires are properly inflated, then something is wrong with your TPMS sensors .

What To Do: Driving on low- or high-pressure tires is unsafe and can cause damage to your tires. We recommend stopping as soon as possible to inflate or deflate your tires to the correct pressure .

If your light turns on when you’re near a Virginia Tire & Auto , drop on by! We have free air available at all our stores, or one of our team members can repair or replace your tire in no time.

We can also look at your TPMS sensors to find any issues and provide a quote for repair. A malfunctioning TPMS will not affect your tires’ performance, but it will keep the system from alerting you when your tires are low.

Read: My TPMS Light Is On: What Does It Mean?

3. Engine Temperature Warning Light

What It Means: If you see this symbol pop up, it means that your engine is overheating. This most likely has to do with your coolant (also called antifreeze), but it can happen for a variety of reasons.

What To Do: First, try turning off the A/C and turning the heater on to redistribute heat to the passenger compartment. If that doesn’t work after a couple of minutes, pull over as soon as it is safe and turn off the vehicle. Allow the engine to cool for at least 15 minutes, and do not pop the hood! Opening the hood while the engine is hot could result in burns/injuries from spewing steam or smoke.

While you wait for the car to cool down, you should figure out a plan for what to do next. It’s a good time to call a roadside assistance service to get your coolant topped off or to get a tow to a nearby repair shop.

(All Virginia Tire & Auto car care services come with 365 days of complimentary Roadside Assistance coverage of up to $200.)

Read: What Happens When a Car Overheats?

4. Traction Control Light

What It Means: This car symbol indicates that your vehicle’s traction control system is activated. The traction control system uses your anti-lock brake system (ABS) to determine if one wheel is spinning faster than the others. If it detects that a wheel is slipping, it applies the brakes until the car regains traction. This is most helpful if you’re driving in rain or snow.

What To Do: Continue driving, but be aware of slippery conditions.

5. Anti-lock Braking System (ABS) Warning Light

What It Means: When you brake hard, like on slick roads, the ABS pulses the brakes to prevent your wheels from locking up. If the ABS warning light is illuminated, it means that something is wrong with the system.

What To Do: Since this is such an important safety feature, it’s important to have a mechanic diagnose the issue as soon as possible.

Read: How Does the Anti-Lock Braking System Work?

6. Traction Control Malfunction Light

What It Means: This light indicates that your vehicle’s traction control system might have a broken or damaged sensor or some other malfunction.  In some cars, the same control module operates the ABS and the traction control system, so sometimes this dashboard light comes on when there are problems with your ABS.

What To Do: While this won’t affect your everyday driving, you should get it checked soon to make sure your vehicle will operate safely in inclement conditions.

7. Engine Warning Light (Check Engine Light)

What It Means: Your check engine light may appear for a variety of reasons. Sometimes it is triggered by an open, loose or cracked gas cap, which causes fuel to evaporate. But sometimes it indicates a serious issue, like low oil pressure or overheating! (NOTE: Some car dashboards will display the words “CHECK ENGINE” instead of this symbol.)

What To Do: If you haven’t noticed a change in the way the car drives and you don’t notice any unusual sounds or smells, you can continue driving a moderate distance (preferably back home or to your local Virginia Tire & Auto).

If the check engine light is red and/or flashing, you should stop driving immediately! In most vehicles, a flashing check engine light signals that you have a major problem that could cause serious damage to your engine if you ignore it.

In either case, make sure to get the light checked and the problem repaired as soon as possible.

Read: Is It Safe to Drive Your Car With the Check Engine Light On?

8. Battery Alert Light

What It Means: This light signifies a problem with the vehicle’s charging system. Possible culprits include a loose or damaged battery cable, a bad alternator, or another electrical fault. You may notice your clock light fading or your headlights dimming. Or, in some cases, your car may not start at all.

What To Do: Our experts can help diagnose any battery-related or electrical issues , and if you need a new battery, we offer America’s No. 1 battery replacement—Interstate Batteries. Don’t wait too long to get it checked out or you may have to jump-start your car to get it to the shop!

Read: Why Won’t My Car Start? Troubleshooting the Electrical System

9. Low Fuel Indicator Light

What It Means: You’re likely familiar with this dashboard light (maybe a little too familiar!). It simply means your vehicle is running low on fuel.

What To Do: If you still have a ways to go, don’t push your luck! You never know how weather or traffic patterns will play out, so it’s best to stop at the nearest gas station and fill up.

Bonus tip: Most vehicles have a triangle-shaped arrow next to the gas pump icon on your fuel gauge. This arrow indicates which side of the vehicle the fuel tank is on!

10. Automatic Shift Lock or Engine Start Indicator Light

What It Means: If you see this dashboard symbol, you’re most likely trying to shift gears or start your ignition without engaging the brake. The automatic shift lock will lock your vehicle in park or neutral until you engage the brake.

What To Do: Press the brake pedal, then shift gears or start the ignition, whichever you are wanting to do.

11. Seat Belt Reminder Light

What It Means: This car light simply reminds you or your passenger to fasten your seatbelts. It is usually accompanied by a repetitive dinging noise.

What To Do: Buckle up! According to the CDC , seat belts decrease serious crash-related injuries by about 50%.

12. Airbag Indicator Light

What It Means: The airbag warning light signals that something is wrong with one of your airbags or the entire airbag system.

What To Do: You should get your car checked out immediately! Your car’s airbags keep you safe during accidents, so it’s important to make sure they are working properly.

13. Security Indicator Light

What It Means: If your vehicle has an anti-theft system, then this symbol will blink steadily when the security system is armed. If it is solid and the car will not start, then the immobilization system has activated due to a security threat or malfunction. If it is solid and the car is running normally, then the security system is malfunctioning and needs to be fixed.

What To Do: If the vehicle is immobilized, follow your vehicle’s guidelines for how to deactivate the security system. If it’s a malfunction, your security system will not work correctly until you have it repaired.

14. Fog Lamp Indicator Light

What It Means: This symbol shows that your fog lights are on.

What To Do: Fog lights should only be used if your visibility is less than 100 yards. If you turn them on unnecessarily, they can make it difficult for other drivers on the road to see.

15. Washer Fluid Indicator Light

What It Means: Imitating the motion of your windshield wipers, this dashboard symbol means that you’re low on windshield washer fluid.

What To Do: Fill up the reservoir with fluid as soon as you can.

16. Brake Warning Light

What It Means: If you see this symbol on your dashboard or the word “BRAKE” in red, then either the parking brake is engaged or there’s a problem with your braking system.

What To Do: First, stop and check to see if your parking brake is engaged. Try setting and releasing the brake while your vehicle is in park. If the light is still on even when the parking brake is unengaged, have your car towed to the nearest Virginia Tire & Auto for service.

17. Lane Departure Warning Light

What It Means: Most cars produced today come with a lane departure warning safety feature. It activates this light on your dashboard and makes a beeping noise when it detects that your vehicle is drifting out of your lane.

What To Do: Correct your steering, if needed. (The light may come on when you are purposefully changing lanes.)

18. Transmission Temperature Warning Light

What It Means: If this symbol appears on your dashboard, it means that your transmission is overheating. This could be caused by low transmission fluid, worn transmission parts, heavy towing or something else.

What To Do: Pull over as soon as it’s safe and turn off the vehicle. Wait for the vehicle to cool down before attempting to drive again and get to a repair shop as soon as possible. If the light won’t go off and you have a ways to go, it’s best to call for a tow.

Car Trouble?

Whether you need a simple oil change or a more serious repair, bring your vehicle to Virginia Tire & Auto. Our expert technicians will diagnose and repair the issue so you can get back on the road safely. Schedule a visit at one of our 17 locations today !

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• All about the Blue Low Coolant light that illuminates on your dashboard
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ALL ABOUT THE BLUE LOW COOLANT LIGHT THAT ILLUMINATES ON YOUR DASHBOARD

Having troubles finding out what the blue light on your dashboard means and what you need to do when that pops up. Well, we could some help, that is throwing light about that area and everything related to it.

The Blue Light means that your vehicle is coolant is at a low temperature. The coolant which is otherwise known as an antifreeze is a fluid that is usually found in the vehicle is radiator. It helps the water in the radiator from freezing during winters and boiling off in the summers. When the coolant does not do these function efficiently.

Now to the question what you should be doing when the blue light turns on?

• The coolant is cold when you start the car and hence the light will be shown when you start your car.
• The oil viscidity at the stage where you start your car is not suitable for high engine loads, which is why you need to keep up a slow pace till the engine warms up to optimal temperature and the blue light turns off.
• While the blue light is on, do not push your car on higher RPMs, to avoid any engine damage.

When the blue light does not turn off?

First of all, do not panic. There are a few reason to why the blue light did not turn off. two of the reasons are one, that there is not much coolant in your radiator and the other there are chances your thermostat might be broken. The light may stay on if your coolant is not warm enough. Make sure your car is cool before you check the coolant. It expands in high temperatures and might not give the right reading. It is also under high pressure making the boiling fluid splash up when you open. So make sure the car is cool before you take the reading.

The blue light sign is just a signal for you monitor your driving and keep calm till the coolant starts functioning again. If the problem sustains you should probably get to the nearest garage.

WagenKenner

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