Decoding Your Dashboard: A Comprehensive Guide to Car Symbols

That sudden beep and the appearance of a strange symbol on your car’s dashboard – it’s a moment every driver experiences. Understanding these Car Symbols On Dashboard isn’t just about satisfying curiosity; it’s crucial for your safety and your vehicle’s longevity. Whether it’s a simple indicator or a serious warning, knowing what your car is trying to tell you can prevent breakdowns and ensure a smoother, safer drive.

Car dashboard symbols are designed to quickly communicate important information about your vehicle’s status. Some are straightforward, like the fuel gauge, while others are more cryptic. This guide will break down the most common car symbols on dashboard, categorizing them and explaining what each one signifies, empowering you to react appropriately when they appear.

Understanding the Types of Car Dashboard Symbols

It’s important to recognize that not every light on your dashboard signals a problem. Many car symbols on dashboard are simply indicators of active features, like headlights, cruise control, or driver-assistance systems. Others serve as warnings, alerting you to potential issues ranging from minor inconveniences to serious mechanical failures.

A key to deciphering car symbols on dashboard is understanding their color coding:

Green or Blue: These are typically informational lights. They indicate that a system is active and functioning normally, such as headlights being on or cruise control engaged.
Yellow or Amber: These are warning lights, but generally suggest less urgent issues. They often mean your vehicle needs attention soon. Think of them as advisory lights, indicating a potential problem that should be checked, like low tire pressure or the need for servicing.
Red: Red car symbols on dashboard are critical warnings. They signal a serious problem that requires immediate attention. A red light often indicates a safety issue or a condition that could cause significant damage to your vehicle if ignored, such as engine overheating or low oil pressure. If a red light appears, it’s crucial to take action promptly, which might involve pulling over safely and seeking assistance.

It’s also worth noting that many car symbols on dashboard will briefly illuminate when you first start your car. This is a system check, and as long as these lights turn off within a few seconds, it indicates that the system is functioning normally. However, if a light stays on or illuminates while you are driving, it’s signaling a condition that needs your attention.

To help you navigate the array of car symbols on dashboard, we’ve compiled a list of 18 common warning lights you’re likely to encounter. Remember, while this guide covers many common symbols, specific symbols can vary slightly between car manufacturers and models. Always refer to your vehicle’s owner’s manual for the most accurate and detailed information about the car symbols on dashboard specific to your car.

18 Essential Car Symbols on Dashboard Explained

Here’s a breakdown of 18 common warning lights you might see on your dashboard:

1. Oil Pressure Warning Light {#oil-pressure-warning-light}

Oil Pressure Warning Light

What it means: This car symbol on dashboard, often resembling an old-fashioned oil can, signals a critical issue with your engine’s oil pressure system. It could indicate low oil levels or a malfunctioning oil pump that isn’t effectively circulating oil to lubricate engine components. Some vehicles might display the word “OIL” instead of the symbol.

What to do: Low oil pressure can lead to severe engine damage due to inadequate lubrication and increased friction. This is a red light warning that demands immediate attention. Safely pull over to the side of the road and turn off your engine. Check for any obvious oil leaks under the car or in the engine bay. Then, use your car’s dipstick to check the oil level.

If the oil level is low, adding oil might resolve the issue, and the light may turn off. However, if the oil level is sufficient, but the engine sounds noisy, it could point to an oil pump problem. If both oil level and engine sound seem normal, a faulty oil pressure sensor could be the culprit. Regardless of the apparent cause, it’s crucial to have your vehicle inspected by a qualified mechanic as soon as possible to diagnose and fix the underlying problem. Driving with low oil pressure can cause irreparable engine damage.

2. Tire Pressure Warning Light (TPMS) {#tire-pressure-warning-light}

What it means: This car symbol on dashboard, often resembling a horseshoe or a cross-section of a tire with an exclamation point, is the Tire Pressure Monitoring System (TPMS) indicator. It signals that one or more of your tires are significantly under-inflated or, in some cases, over-inflated.

A solid TPMS light indicates that the tire pressure in one or more tires is outside the recommended range. A flashing TPMS light, especially if it flashes for 60-90 seconds upon starting the vehicle and then remains solid, often indicates a malfunction within the TPMS itself, such as a sensor issue, even if tire pressures are correct.

What to do: Driving with improper tire pressure is not only unsafe, affecting handling and braking, but it can also lead to uneven tire wear and potential tire damage or blowouts. Stop at the nearest safe location and check your tire pressures using a tire pressure gauge. Inflate or deflate your tires to the pressure recommended on the sticker typically found on your driver’s side doorjamb or in your owner’s manual.

If the light persists after adjusting tire pressure, or if it’s flashing, you may have a TPMS sensor issue. While a TPMS malfunction won’t directly impact tire performance, it means the system won’t warn you of future pressure problems. It’s advisable to have your TPMS checked by a tire service professional to diagnose sensor issues and ensure the system is functioning correctly. Many tire shops offer free air refills and can assist with tire pressure adjustments and TPMS checks.

3. Engine Temperature Warning Light {#engine-temperature-warning-light}

Engine Temperature Warning Light

What it means: This car symbol on dashboard, resembling a thermometer submerged in liquid or waves, indicates that your engine is overheating. Overheating is often related to the engine coolant (antifreeze) system, but can arise from various causes, including coolant leaks, a faulty thermostat, or a malfunctioning radiator fan.

What to do: Engine overheating can cause significant engine damage very quickly. This is a red light warning requiring immediate action. First, try turning off your air conditioning and turning on your heater to draw heat away from the engine and into the passenger compartment. If the light doesn’t turn off within a minute or two, pull over to a safe location as soon as possible and turn off the engine. Do not attempt to open the hood immediately as there could be pressurized hot steam or coolant that can cause serious burns.

Allow the engine to cool down for at least 15-20 minutes before attempting to check anything. While waiting, plan your next steps. Contact a roadside assistance service for help. They can often provide coolant or arrange for a tow to a repair shop. Driving a car that is overheating can lead to severe and costly engine damage, including a blown head gasket or warped cylinder head.

4. Traction Control Indicator Light {#traction-control-indicator-light}

What it means: This car symbol on dashboard, often showing a car with squiggly lines underneath, indicates that your vehicle’s traction control system is actively engaged. The traction control system uses sensors to detect if a wheel is losing traction and spinning faster than others, typically on slippery surfaces like rain, snow, or ice. When activated, it automatically applies brakes to the slipping wheel(s) and may reduce engine power to help regain traction and stability.

What to do: If this light is flashing, it means the traction control system is working as intended to help maintain control in slippery conditions. You can continue driving, but be aware that road conditions are likely reduced traction. Adjust your driving accordingly – reduce speed, avoid sudden acceleration or braking, and maintain a safe following distance. If the light is constantly illuminated and not flashing, it might indicate a malfunction in the traction control system, which should be checked by a mechanic, although it’s generally less urgent than other warning lights.

5. Anti-lock Brake System (ABS) Warning Light {#anti-lock-brake-system-abs-warning-light}

ABS Warning Light

What it means: The ABS car symbol on dashboard, usually displaying the letters “ABS” inside a circle and parentheses, indicates a problem with your vehicle’s Anti-lock Braking System. The ABS is a crucial safety feature that prevents your wheels from locking up during hard braking, especially on slippery surfaces, allowing you to maintain steering control. When this light is illuminated, it signifies that the ABS system is not functioning correctly.

What to do: While your regular brakes will still function, the anti-lock braking feature is compromised when the ABS warning light is on. This means in emergency braking situations, especially on slick roads, your wheels could lock up, potentially leading to skidding and loss of control. It’s important to have the ABS system diagnosed and repaired by a qualified mechanic as soon as possible. Schedule a service appointment to have your ABS system inspected to ensure this critical safety feature is operational.

6. Traction Control Malfunction Light {#traction-control-malfunction-light}

What it means: This car symbol on dashboard is similar to the traction control indicator but often remains illuminated constantly (not flashing) and may include the word “OFF” or “!” symbol. It signifies a malfunction within the traction control system. In some vehicles, the ABS and traction control systems share components, so this light can sometimes illuminate due to ABS issues as well.

What to do: A traction control malfunction means that the system may not engage when needed in slippery conditions. While it typically won’t affect normal driving in good conditions, you’ll lose the added safety and stability provided by traction control in rain, snow, or ice. It’s recommended to have your vehicle checked by a mechanic to diagnose the cause of the malfunction and ensure your traction control system is functioning correctly, especially if you frequently drive in areas with inclement weather.

7. Check Engine Light {#check-engine-light}

Check Engine Light

What it means: The check engine light, often depicted as an engine outline or sometimes the words “CHECK ENGINE,” is one of the most ambiguous car symbols on dashboard. It can illuminate for a wide range of reasons, from minor issues like a loose gas cap preventing proper sealing of the fuel system (leading to fuel evaporation) to more serious problems such as issues with the catalytic converter, oxygen sensors, or engine misfires.

What to do: The appropriate action depends on whether the check engine light is solid or flashing.

Solid Check Engine Light: If the light is solid and your car is driving normally without unusual noises, smells, or performance issues, the problem might be relatively minor. You can typically continue driving for a short distance, ideally to your home or a trusted repair shop. However, it’s still important to get the issue diagnosed as soon as possible to prevent potential further damage or reduced fuel efficiency.
Flashing Check Engine Light: A flashing check engine light is a more serious warning. It usually indicates an engine misfire severe enough to potentially damage the catalytic converter. In this case, you should stop driving as soon as it is safe to do so. Continuing to drive with a flashing check engine light can lead to significant engine and emissions system damage. Have your vehicle towed to a repair shop for diagnosis and repair.

In either case, it’s essential to have the check engine light issue diagnosed promptly by a qualified technician to determine the root cause and perform necessary repairs. Modern cars have complex engine management systems, and a diagnostic scan tool is needed to read the error codes that triggered the light and pinpoint the problem.

8. Battery Warning Light {#battery-warning-light}

What it means: This car symbol on dashboard, shaped like a battery with “+” and “-” terminals, indicates a problem with your vehicle’s charging system. It doesn’t necessarily mean your battery itself is bad, but rather that the battery is not being properly charged while the engine is running. Common causes include a loose or corroded battery cable, a failing alternator (which charges the battery), or issues with other components of the charging circuit. You might also notice symptoms like dimming headlights, a fading clock display, or, in severe cases, the car may not start at all.

What to do: If the battery warning light comes on while driving, your car is likely running solely on battery power. The battery has a limited charge capacity, and eventually, it will become depleted, causing the engine to stall and other electrical systems to shut down. It’s advisable to reduce electrical load by turning off unnecessary accessories like the radio and air conditioning. Drive directly to a repair shop or auto parts store as soon as possible to have the charging system checked.

If your car won’t start and you suspect a battery issue, you might need to jump-start it. However, jump-starting only provides temporary power. If the underlying charging system problem isn’t fixed, the battery will likely drain again. A mechanic can diagnose the charging system to determine if it’s a battery issue, alternator problem, or another electrical fault.

9. Low Fuel Level Indicator {#low-fuel-level-indicator}

Low Fuel Indicator Light

What it means: This car symbol on dashboard, resembling a fuel pump, is a straightforward indicator that your vehicle is running low on fuel. When this light illuminates, it signifies that your fuel level has dropped below a certain threshold, typically indicating you have around 1-2 gallons of fuel remaining, depending on your vehicle’s make and model.

What to do: The low fuel light is a reminder to refuel soon. While most cars can travel a reasonable distance after the light comes on, it’s best not to push your luck. Fuel levels can be affected by driving conditions, terrain, and traffic. Running completely out of fuel can leave you stranded and, in some vehicles, can potentially damage the fuel pump. Plan to stop at the next convenient gas station to refuel.

Bonus Tip: Many vehicles have a small arrow next to the fuel pump symbol on the fuel gauge. This arrow indicates which side of your car the fuel filler door is located, adding a touch of convenience at the gas station.

10. Automatic Shift Lock/Engine Start Indicator {#automatic-shift-lockengine-start-indicator}

What it means: This car symbol on dashboard, often showing a foot pressing a brake pedal or a key symbol, is typically an informational light related to starting or shifting gears in vehicles with automatic transmissions. It usually illuminates if you attempt to shift out of “Park” or start the engine without first pressing the brake pedal. Modern automatic transmissions have a shift lock mechanism that prevents shifting out of “Park” unless the brake pedal is depressed, as a safety feature.

What to do: If you see this light, it simply means you need to ensure you are pressing the brake pedal firmly before attempting to shift gears out of “Park” or start the ignition. This is a normal operation and a safety reminder built into the vehicle’s design.

11. Seat Belt Reminder Light {#seat-belt-reminder-light}

Seat Belt Reminder Light

What it means: The seat belt reminder light, usually depicting a person wearing a seat belt, is a straightforward reminder to fasten your seatbelt and ensure your passengers do too. It’s often accompanied by an audible chime or buzzing sound that continues until the driver and front passenger (and sometimes rear passengers) have buckled up.

What to do: Buckle your seatbelt! Seat belts are a primary safety feature in vehicles and significantly reduce the risk of serious injuries in accidents. According to safety organizations, seat belts reduce the risk of fatal injury to front-seat passengers by 45% and the risk of moderate-to-critical injury by 50%. Always ensure everyone in the vehicle is properly wearing their seatbelts before driving.

12. Airbag Warning Light {#airbag-warning-light}

What it means: The airbag warning light, typically showing a side profile of a person with a circular airbag in front of them, signals a problem with the vehicle’s airbag system. This could indicate a malfunction in one or more airbags, the airbag sensors, the seatbelt pretensioners (which work in conjunction with airbags), or the overall airbag control system.

What to do: An airbag system malfunction is a serious safety concern. This is a red light warning that requires immediate attention. If this light is illuminated, it means your airbags may not deploy properly in the event of a collision, compromising your safety and the safety of your passengers. It’s crucial to have your vehicle inspected by a qualified mechanic as soon as possible to diagnose and repair the airbag system. Do not delay getting this checked, as functional airbags are critical for occupant protection in accidents.

13. Security/Anti-theft Light {#securityanti-theft-light}

Security Indicator Light

What it means: The security indicator light, often depicted as a padlock symbol or a car silhouette with a key or exclamation point, relates to your vehicle’s anti-theft or security system. Its behavior can vary depending on the system’s status:

Blinking Light (when car is off): A blinking security light when the car is turned off and locked is usually normal. It indicates that the anti-theft system is armed and actively monitoring for unauthorized entry.
Solid Light and Car Won’t Start: If the security light is solid and the car won’t start, it may indicate that the immobilizer system has been activated, possibly due to a perceived security threat, a key issue, or a system malfunction.
Solid Light and Car Running Normally: If the security light is solid while the car is running normally, it could signal a malfunction in the security system itself, meaning it may not function correctly in case of a theft attempt.

What to do: If your vehicle is immobilized due to a solid security light, consult your owner’s manual for specific instructions on how to deactivate or reset the security system. This might involve using your key fob in a particular way or entering a security code. If the light indicates a system malfunction (solid light while driving), it’s advisable to have your vehicle’s security system checked by a dealer or qualified technician to ensure it’s functioning correctly and providing the intended anti-theft protection.

14. Fog Light Indicator {#fog-light-indicator}

What it means: The fog light indicator, usually displaying a headlight symbol with a wavy line through it and pointing downwards or sideways, simply indicates that your vehicle’s fog lights are turned on. Fog lights are designed to provide improved visibility in foggy or heavy rain conditions by directing a wide, low beam of light towards the road surface and edges.

What to do: This is generally an informational light. Ensure you are only using fog lights when visibility is actually reduced due to fog, heavy rain, or snow. Using fog lights in clear conditions can create glare for other drivers and may be illegal in some areas. Remember to turn off your fog lights when visibility improves.

15. Washer Fluid Level Indicator {#washer-fluid-level-indicator}

Washer Fluid Indicator Light

What it means: The washer fluid indicator, often depicting a windshield with a spray of water or wavy lines, is a reminder that your windshield washer fluid reservoir is low and needs to be refilled.

What to do: Replenish your windshield washer fluid as soon as practical. Maintaining adequate washer fluid is important for keeping your windshield clean and clear, especially in inclement weather or when driving on roads where dirt and grime can accumulate on the windshield. Washer fluid is essential for safe visibility.

16. Brake System Warning Light {#brake-system-warning-light}

What it means: The brake system warning light is a crucial safety indicator and can appear in a couple of forms: either the word “BRAKE” in red or a symbol of an exclamation point inside a circle and parentheses. It can indicate a few different brake-related issues:

Parking Brake Engaged: Most commonly, this light illuminates when the parking brake (emergency brake) is engaged.
Low Brake Fluid Level: It can also signal a low brake fluid level in the brake master cylinder reservoir. Brake fluid is essential for hydraulic brake operation.
Brake System Malfunction: In some cases, it can indicate a more serious brake system malfunction.

What to do: First, if the brake warning light is on, immediately check if your parking brake is engaged and release it fully. If the light turns off, the issue was simply the parking brake. If the light remains on after releasing the parking brake, it could indicate low brake fluid or a more serious brake system problem.

Low brake fluid is a serious safety concern. Do not drive if you suspect low brake fluid or a brake system malfunction. Have your vehicle towed to a qualified repair shop for inspection. Driving with a brake system problem can be extremely dangerous.

17. Lane Departure Warning Light {#lane-departure-warning-light}

Lane Departure Warning Light

What it means: The lane departure warning light, typically showing a car between lane markings and often with an arrow indicating drifting, is associated with modern lane departure warning systems. This system uses sensors to detect if your vehicle is unintentionally drifting out of its lane without using a turn signal. When lane departure is detected, the system typically provides a visual warning (the light) and often an audible or vibration warning to alert the driver.

What to do: If the lane departure warning light illuminates, it means the system has detected you drifting out of your lane. Correct your steering to stay within your lane. The system is designed to help prevent unintentional lane departures, often caused by driver fatigue or distraction. Note that the system may also activate when you intentionally change lanes without using your turn signal, as it’s designed to detect unintentional drifting.

18. Transmission Temperature Warning Light {#transmission-temperature-warning-light}

What it means: The transmission temperature warning light, often resembling a thermometer in a gear symbol, indicates that your vehicle’s automatic transmission is overheating. Overheating can be caused by low transmission fluid, heavy towing, demanding driving conditions, internal transmission problems, or a faulty transmission cooler.

What to do: Transmission overheating can lead to serious and expensive transmission damage. This is a red light warning requiring prompt action. If this light comes on, pull over to a safe location as soon as possible and stop the vehicle. Turn off the engine and allow the transmission to cool down for at least 20-30 minutes. Check your owner’s manual for instructions on checking transmission fluid level (if applicable to your vehicle).

After cooling, if the light is off, you might cautiously attempt to drive to a repair shop. However, if the light remains on or comes back on quickly, or if you suspect a serious transmission issue, it’s best to have your vehicle towed to a qualified repair shop for diagnosis and repair. Continuing to drive with an overheating transmission can cause severe internal damage, potentially requiring a costly transmission rebuild or replacement.

Still Confused by Car Symbols on Dashboard?

Dashboard car symbols can sometimes be perplexing, but understanding them is a key part of responsible car ownership. When in doubt about any car symbols on dashboard, especially warning lights, it’s always best to err on the side of caution. Consult your owner’s manual for detailed information on your specific vehicle’s symbols. And when a warning light indicates a potential mechanical issue, don’t hesitate to seek professional help from a trusted mechanic to diagnose and address the problem, ensuring your safety and your vehicle’s reliable operation.