What Do the Lights on My Dashboard Mean? A Comprehensive Guide

We’ve all experienced that moment of mild panic: you’re driving along, perhaps enjoying your favorite song, when suddenly a light illuminates on your car’s dashboard. A new symbol appears, and questions flood your mind. What does it mean? Is it serious? Do I need to pull over immediately?

Understanding the symbols on your dashboard is crucial for every driver. While some lights are straightforward, others can be cryptic, signaling potential issues that range from minor to severe. Knowing what these warning lights mean can save you from costly repairs and ensure your safety on the road.

Decoding Your Dashboard: Understanding Car Symbols

Dashboard symbols aren’t just random illuminations; they are a vital communication system from your vehicle, alerting you to various conditions and potential problems. These lights can relate to everything from standard vehicle functions like headlights and cruise control to critical safety systems such as airbags and anti-lock brakes, and potential mechanical faults like engine issues or low tire pressure.

Color plays a significant role in deciphering dashboard lights. Green or blue indicators are generally informational, simply indicating that a particular system is active and functioning correctly, like your headlights being on or cruise control engaged. Amber or yellow warning lights are caution signals, suggesting that your vehicle requires attention soon. These might indicate a less urgent issue but shouldn’t be ignored, as they often point to a need for maintenance or repair.

The most critical are red and/or flashing lights. These are urgent warnings demanding immediate action. Red lights can signal safety issues, like a seatbelt reminder, or serious mechanical problems, such as engine overheating or critical oil pressure loss. If a red mechanical warning light appears, it’s imperative to pull over to a safe location as soon as possible to assess the situation. Continuing to drive with a red warning light could lead to significant vehicle damage or even a breakdown.

Before we dive into specific dashboard light meanings, remember these two essential points:

1. Vehicle Specifics: Dashboard symbols can vary slightly between car manufacturers and models. Your owner’s manual is the definitive guide for your specific vehicle. Always refer to it if you’re unsure about a particular symbol.
2. Initial System Check: It’s normal for many dashboard lights to briefly illuminate when you first start your car. This is part of a system check. As long as these lights turn off within a few seconds, it indicates that the systems are functioning as expected. Persistent illumination after the initial check is what warrants your attention.

18 Common Dashboard Warning Lights: A Driver’s Guide

Let’s explore 18 of the most frequently encountered warning lights on your car’s dashboard, helping you understand what they signify and how to respond.

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 (ABS) 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

Oil Pressure Warning Light

What It Means

The symbol resembling an old-fashioned oil can is the Oil Pressure Warning Light. This critical indicator signals a problem within your car’s oil pressure system. It usually means one of two things: either your engine oil level is critically low, or there’s a malfunction in your oil pump, preventing proper oil circulation throughout the engine. Insufficient oil pressure means vital engine components aren’t being adequately lubricated. Some vehicles might display the word “OIL” instead of this symbol.

What To Do

Low oil pressure can rapidly lead to severe engine damage due to increased friction and heat. This is a serious warning that demands immediate attention.

1. Pull Over Immediately and Safely: As soon as it’s safe to do so, pull your vehicle off the road and to a complete stop.
2. Turn Off the Engine: Shut off your engine to prevent further potential damage from lack of lubrication.
3. Check Oil Level: Wait a few minutes to allow the oil to settle back into the oil pan. Then, locate and carefully remove the oil dipstick. Wipe it clean, reinsert it fully, and then pull it out again to get an accurate reading. Check the oil level against the markings on the dipstick.
4. Inspect for Leaks: While checking the oil level, also visually inspect around the engine area for any obvious signs of oil leaks. Look for puddles of oil under the car or oil splatter within the engine bay.

Possible Scenarios and Next Steps:

• Low Oil Level: If the dipstick indicates a low oil level, and you find no major leaks, carefully add the correct type and amount of engine oil as specified in your owner’s manual. After adding oil, check the dipstick again to ensure the level is within the acceptable range. Start the engine and see if the light turns off. If it does, monitor it closely. However, if the light persists or reappears soon, there might be a more serious underlying issue.
• Adequate Oil Level but Light Remains On: If the oil level is sufficient, but the warning light remains illuminated, it could indicate a malfunctioning oil pump or a faulty oil pressure sensor. In this case, do not continue driving. Contact roadside assistance or a towing service to transport your vehicle to a certified mechanic for diagnosis and repair.
• Noisy Engine: If you notice unusual engine noises, such as knocking or ticking, along with the oil pressure light, it’s a sign of potential engine damage. Shut off the engine immediately and seek professional help.

Ignoring the Oil Pressure Warning Light can lead to catastrophic engine failure, resulting in very expensive repairs or even engine replacement. Prompt action is crucial to prevent severe damage.

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

2. Tire Pressure Warning Light

Tire Pressure Warning Light

What It Means

Often depicted as a horseshoe-shaped symbol with an exclamation point in the center, or sometimes resembling a deflated tire, the Tire Pressure Warning Light is also known as the Tire Pressure Monitoring System (TPMS) indicator. This light signals an issue with your tire pressure or the TPMS itself.

• Solid TPMS Light: A consistently lit TPMS symbol typically indicates that one or more of your tires are significantly under-inflated or, less commonly, over-inflated.
• Flashing TPMS Light: If the TPMS symbol flashes for approximately 60 to 90 seconds upon starting your vehicle and then remains continuously illuminated, it suggests a malfunction within the TPMS system itself. This could involve a problem with one or more of the TPMS sensors, even if your tire pressures are currently correct.

What To Do

Driving with improper tire pressure is not only unsafe, affecting your vehicle’s handling and braking, but it can also lead to premature tire wear and reduced fuel efficiency.

1. Stop and Check Tire Pressures: As soon as it’s safe to pull over, use a tire pressure gauge to check the pressure in all four tires (and the spare tire, if accessible and part of the TPMS).
2. Consult Tire Placard: Locate the tire placard, usually found on the driver’s side doorjamb or in your owner’s manual. This placard specifies the recommended tire pressure (in PSI – pounds per square inch) for your vehicle’s tires.
3. Inflate or Deflate Tires: Inflate any under-inflated tires to the recommended pressure. If a tire is over-inflated (though less common), deflate it to the correct pressure.
4. Re-check and Reset (if necessary): After adjusting tire pressures, re-check them to ensure accuracy. In some vehicles, the TPMS light may automatically turn off after pressures are corrected. In others, you might need to drive for a short distance or perform a TPMS reset procedure (consult your owner’s manual for specific instructions if needed).

Possible Scenarios and Next Steps:

• Solid Light Turns Off After Inflation: If the solid TPMS light turns off after you’ve correctly inflated your tires, the issue was likely just low tire pressure. Monitor your tire pressures regularly, especially with temperature changes, as pressure can fluctuate. Check for slow leaks if you find yourself frequently needing to add air.
• Flashing Light or Solid Light Persists: If the TPMS light continues to flash or remains solid even after you’ve inflated your tires to the correct pressure, there’s likely a problem with the TPMS system itself. This could be a faulty sensor, a dead sensor battery, or a system malfunction. While your tires might be properly inflated, a TPMS system issue means the system might not warn you of future pressure drops. Schedule a service appointment with a qualified tire or automotive service center to diagnose and repair the TPMS problem.

Many tire and auto service centers, including Virginia Tire & Auto, offer free air for tire inflation. They can also inspect your tires for damage, repair punctures, and address TPMS issues. Addressing a TPMS malfunction ensures that this important safety system is functioning correctly to alert you to tire pressure problems in the future.

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

3. Engine Temperature Warning Light

Engine Temperature Warning Light

What It Means

Resembling a thermometer submerged in liquid, the Engine Temperature Warning Light is a critical indicator that your engine is overheating. This usually points to a problem with your engine’s cooling system, most commonly related to the coolant (antifreeze). However, overheating can stem from various causes, including coolant leaks, a faulty thermostat, a malfunctioning radiator fan, or even a broken water pump.

What To Do

An overheating engine can sustain significant damage very quickly, ranging from warped cylinder heads to cracked engine blocks, leading to expensive repairs. Immediate action is crucial.

1. Observe Temperature Gauge: If your vehicle has an analog temperature gauge, check its reading. If it’s in the red zone or significantly higher than normal, it confirms overheating.
2. Reduce Engine Load: Immediately take steps to reduce engine stress. Turn off the air conditioning, as the A/C system adds load to the engine.
3. Turn Heater On (Paradoxical, but Effective): Turn your heater to its hottest setting and turn the fan on high (but set the vent to blow away from your face so you don’t get blasted with hot air). This may seem counterintuitive, but it helps to draw heat away from the engine and into the passenger compartment, helping to cool the engine down.
4. Pull Over Safely: If the temperature gauge remains high or the warning light persists, pull over to a safe location as soon as possible and turn off the engine.
5. Allow Engine to Cool Down: Let the engine cool down completely for at least 15-20 minutes. Crucially, do not attempt to open the hood immediately while the engine is hot. There’s a risk of burns from escaping steam or hot coolant.

After the Engine Has Cooled (and only then):

1. Check Coolant Level (with Caution): Once the engine is sufficiently cool, carefully and slowly open the hood. Locate the coolant reservoir (usually a translucent plastic tank). Check the coolant level. If it’s significantly low or empty, this is likely the cause of overheating.
2. Look for Coolant Leaks: Inspect around the engine compartment for any visible signs of coolant leaks – puddles of green, orange, or pink fluid, or steam escaping from hoses or the radiator.

Possible Scenarios and Next Steps:

• Low Coolant: If the coolant level is low, and you can safely access coolant (and know the correct type for your vehicle), you can carefully add coolant to the reservoir. However, only do this if the engine is completely cool. If you’re unsure about the type of coolant or how to add it safely, it’s best to seek professional help. After adding coolant, monitor the temperature gauge closely. If the overheating recurs quickly, there’s likely a more serious problem.
• No Obvious Coolant Leak but Overheating Persists: If the coolant level seems adequate, or if you’ve added coolant but the engine still overheats, there’s likely a more complex issue, such as a thermostat malfunction, water pump failure, radiator problem, or internal engine issue. In this case, do not continue driving. Call for roadside assistance or a tow truck to take your vehicle to a qualified repair shop.

Driving an overheating engine can cause severe and permanent engine damage. Treat the Engine Temperature Warning Light as a serious emergency and act promptly to prevent costly repairs.

Read: What Happens When a Car Overheats?

4. Traction Control Light

Traction Control Light

What It Means

Typically depicted as a car with squiggly lines underneath the tires, the Traction Control Light indicates that your vehicle’s traction control system is actively engaged. This system is designed to enhance vehicle stability, especially on slippery surfaces. It works by monitoring wheel speed sensors. If it detects that one or more wheels are spinning faster than others (indicating a loss of traction), the system automatically intervenes. It may apply brakes to the slipping wheel(s), reduce engine power, or both, until traction is regained. This is particularly helpful when driving in rain, snow, ice, or on loose gravel.

What To Do

When the Traction Control Light flashes intermittently, it means the system is working as intended and actively helping you maintain control in slippery conditions.

1. Continue Driving with Caution: It’s generally safe to continue driving when the traction control light is flashing. However, it’s a signal to be aware of the road conditions and drive accordingly.
2. Adjust Driving to Conditions: Reduce your speed, avoid sudden acceleration or braking, and make smooth, gentle steering inputs. The fact that the traction control is engaging indicates that you are driving in conditions where traction is compromised.

Important Note: If the Traction Control Light stays illuminated continuously (not flashing), it might indicate a malfunction in the traction control system. This is different from the Traction Control Malfunction Light (explained below). If the steady Traction Control Light is accompanied by other warning lights, or if you notice unusual vehicle behavior, it’s advisable to have your vehicle checked by a mechanic.

In normal driving conditions where traction is good, the Traction Control Light should not be illuminated. It only activates when wheel slip is detected.

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

ABS Warning Light

What It Means

Usually displayed as the letters “ABS” inside a circle, or sometimes spelled out as “ANTI-LOCK”, the Anti-lock Braking System (ABS) Warning Light signals a problem within your vehicle’s anti-lock braking system. The ABS is a crucial safety feature designed to prevent your wheels from locking up during hard braking, especially on slippery surfaces. By preventing wheel lock-up, ABS allows you to maintain steering control while braking forcefully, potentially avoiding skids and accidents.

What To Do

If the ABS warning light illuminates, it means the ABS system is not functioning correctly. While your regular braking system will still work (unless the Brake Warning Light is also on), the anti-lock function is compromised.

1. Normal Braking is Still Functional (Usually): In most cases, even with the ABS light on, your standard brakes will still operate. However, you will not have the benefits of anti-lock braking.
2. Avoid Hard Braking in Slippery Conditions: Since ABS is not functioning, be particularly cautious when braking, especially on wet, icy, or gravel roads. Avoid hard, sudden braking that could cause wheel lock-up and skidding.
3. Schedule a Service Appointment: Because ABS is a critical safety system, it’s important to have the issue diagnosed and repaired as soon as possible. Schedule an appointment with a qualified mechanic or service center to inspect and fix the ABS system.

Possible Issues: The ABS warning light can be triggered by various problems, including:

• Faulty Wheel Speed Sensor: ABS relies on wheel speed sensors to detect wheel lock-up. A malfunctioning sensor is a common cause.
• ABS Control Module Problem: The electronic control module that manages the ABS system can sometimes fail.
• Hydraulic Issues within the ABS System: Problems with the hydraulic pump or valves in the ABS system can also trigger the warning light.
• Wiring or Electrical Faults: Issues in the electrical wiring or connections related to the ABS system can also cause malfunctions.

Driving with a malfunctioning ABS system reduces your vehicle’s safety margin, especially in emergency braking situations. Prompt repair is recommended to restore this vital safety feature.

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

6. Traction Control Malfunction Light

)

What It Means

Often similar in appearance to the regular Traction Control Light (car with squiggly lines), but sometimes with an added exclamation mark or the word “OFF” or “!” , the Traction Control Malfunction Light specifically indicates a problem within the traction control system itself. This light signifies that the system is not just actively engaged (like the regular Traction Control Light), but that it might be faulty or disabled.

In some vehicles, the same control module manages both the ABS and the traction control systems. Therefore, in some cases, this malfunction light can illuminate when there are issues with the ABS as well, or vice versa.

What To Do

When the Traction Control Malfunction Light is on, your vehicle’s traction control system may not be operating correctly or at all.

1. Traction Control May Be Disabled: Assume that your traction control system is not functioning when this light is illuminated. This means you will not have the system’s assistance in preventing wheel spin and maintaining traction on slippery surfaces.
2. Drive with Extra Caution: Adjust your driving habits, especially in potentially slippery conditions (rain, snow, ice, gravel). Be gentle with acceleration and braking, and avoid sudden maneuvers that could lead to loss of control.
3. Schedule a Diagnostic Check: While a traction control malfunction might not affect everyday driving in ideal conditions, it’s a safety system designed to protect you in challenging situations. It’s recommended to have your vehicle inspected by a qualified mechanic to diagnose the cause of the malfunction and get it repaired.

Possible Issues: The Traction Control Malfunction Light can be caused by:

• Sensor Problems: Faulty wheel speed sensors or other sensors related to the traction control system.
• Control Module Malfunction: Issues with the electronic control module that manages the traction control.
• Wiring or Electrical Problems: Faults in the wiring or electrical connections of the traction control system.
• ABS System Issues: As mentioned, problems with the ABS can sometimes also trigger the Traction Control Malfunction Light due to shared components or system integration.

Having the traction control system checked and repaired ensures that this safety feature will be available when you need it, especially in adverse driving conditions.

7. Engine Warning Light (Check Engine Light)

Check Engine Light

What It Means

Often depicted as an outline of an engine block, or sometimes simply stated as “CHECK ENGINE” or “SERVICE ENGINE SOON”, the Engine Warning Light, commonly known as the Check Engine Light, is one of the most ambiguous and potentially concerning dashboard lights. It is connected to your vehicle’s onboard diagnostic system (OBD-II), which monitors a vast array of engine and emissions-related parameters. The Check Engine Light can illuminate for a wide range of reasons, from very minor to quite serious.

• Minor Issues: Sometimes, it’s triggered by something as simple as a loose or missing gas cap. This can cause fuel vapors to escape, affecting emissions and triggering the light.
• Serious Issues: At other times, it can indicate significant problems such as engine misfires, catalytic converter issues, problems with oxygen sensors, or even low oil pressure or engine overheating (though these usually have their own specific warning lights as well).

Note: Some dashboards may display the words “CHECK ENGINE” instead of the engine symbol.

What To Do

The appropriate response to a Check Engine Light depends on its behavior and whether you notice any other symptoms.

1. Check Gas Cap: If the Check Engine Light comes on, and you’ve recently refueled, first ensure that your gas cap is properly tightened. A loose gas cap is a common culprit. Tighten it securely and see if the light turns off after a short drive. It may take a few drive cycles for the light to reset if this was the only issue.
2. Assess Vehicle Performance: Pay attention to how your car is driving. Are there any noticeable problems such as:
   • Rough idling or stalling?
   • Loss of power or hesitation during acceleration?
   • Unusual noises or smells?
   • Smoke from the exhaust?
3. Solid vs. Flashing Light – Critical Distinction:
   • Solid Check Engine Light (no flashing): If the light is on continuously but not flashing, and your car seems to be driving normally without any significant issues, you can often continue driving moderately, but it’s still important to get it checked soon. Schedule a diagnostic appointment with a mechanic as soon as practical.
   • Flashing Check Engine Light: A flashing Check Engine Light is a serious warning! It usually indicates a more severe problem, such as an engine misfire, that could potentially damage your catalytic converter if ignored. In most vehicles, a flashing Check Engine Light signals a problem that requires immediate attention.

Immediate Action for Flashing Check Engine Light:

• Stop Driving (if safe to do so): If the Check Engine Light is flashing, it’s generally recommended to pull over to a safe location and stop driving as soon as possible.
• Avoid Strenuous Driving: If you must continue driving to reach a safe place or a service center, drive very gently and avoid high speeds, heavy acceleration, or towing.
• Seek Professional Diagnosis: Whether the light is solid or flashing, it’s essential to have the underlying issue diagnosed by a qualified mechanic. They will use diagnostic scanning tools to read the error codes stored in your car’s computer, which will pinpoint the source of the problem.

Ignoring a Check Engine Light, especially a flashing one, can lead to more extensive and expensive repairs down the line. Prompt diagnosis and repair are always recommended.

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

8. Battery Alert Light

What It Means

Shaped like a car battery (a rectangle with positive and negative terminals), the Battery Alert Light indicates a problem within your vehicle’s charging system. It doesn’t necessarily mean your battery itself is bad, but rather that the system responsible for charging the battery while the engine is running is malfunctioning.

Possible causes for this light include:

• Alternator Problems: The alternator is the component that recharges your battery and powers the electrical systems while the engine is running. A failing alternator is a common cause of the Battery Light.
• Loose or Corroded Battery Cables: Poor connections at the battery terminals can disrupt charging.
• Damaged Battery Cables: Wires leading to or from the battery could be damaged or broken.
• Accessory Belt Issues: The alternator is driven by a belt (serpentine belt or V-belt). If this belt is broken or slipping, the alternator won’t function properly.
• Electrical Faults: Other electrical system problems can sometimes trigger the Battery Light.

You might also notice other symptoms along with the Battery Light, such as:

• Dimming Headlights: Headlights may appear weaker than usual, especially at idle.
• Flickering Dashboard Lights: Dashboard lights might flicker or dim.
• Slow or Weak Engine Cranking: The engine might crank slowly or weakly when you try to start the car, or fail to start at all.
• Electrical Accessories Malfunctioning: Power windows, radio, or other electrical accessories might work erratically or not at all.

What To Do

The Battery Alert Light indicates that your car is likely running primarily off the battery’s stored energy, and it’s not being properly recharged. Eventually, the battery will become depleted, and your car could stall or fail to restart.

1. Minimize Electrical Load: Reduce the use of electrical accessories to conserve battery power. Turn off unnecessary lights (like fog lights or interior lights), the radio, and the air conditioning or heater fan if possible.
2. Avoid Stop-and-Go Traffic: If possible, try to keep driving steadily to minimize engine idling, as the alternator typically charges better at higher engine speeds (though if the alternator is truly faulty, this may not help much).
3. Head to a Service Center: Drive directly to a trusted mechanic or auto service center as soon as possible to have the charging system diagnosed.
4. Prepare for Potential Battery Drain: Be aware that your car could potentially stall or fail to restart if the battery becomes too discharged.

Do Not Ignore the Battery Light: Continuing to drive for extended periods with the Battery Light on can lead to:

• Vehicle Stalling: The car may suddenly stall, especially at low speeds or when idling, as the battery runs out of power.
• No Restart: Once the engine is turned off, you might not be able to restart it due to a dead battery.
• Potential Damage to Electrical Components: In some cases, electrical system malfunctions can potentially damage other electronic components in the vehicle.

Prompt diagnosis and repair of the charging system problem are essential to prevent being stranded and to avoid further electrical issues. Many auto service centers can test your battery and charging system to pinpoint the problem.

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

9. Low Fuel Indicator Light

Low Fuel Light

What It Means

Typically represented as a fuel pump symbol, the Low Fuel Indicator Light is straightforward. It simply indicates that your vehicle’s fuel level is running low and approaching empty.

What To Do

When the Low Fuel Light illuminates, it’s a clear signal that you need to refuel soon.

1. Refuel as Soon as Practical: Plan to stop at a gas station and refuel your vehicle at your earliest convenience.
2. Consider Remaining Range: Most modern cars provide an estimated “miles to empty” or “range” display when the low fuel light comes on. Use this as a guide, but remember it’s an estimate and can vary based on driving conditions.
3. Don’t Push Your Luck: While modern cars can often travel a reasonable distance after the low fuel light comes on, it’s not advisable to push it to the absolute limit. Factors like traffic, unexpected detours, or inaccuracies in the fuel gauge can lead to running out of fuel unexpectedly.
4. Avoid Running Completely Out of Fuel: Repeatedly running your fuel tank very low can potentially draw sediment from the bottom of the tank into the fuel system, which could, over time, clog fuel filters or cause other fuel system issues. In some older vehicles, running completely out of fuel could also potentially damage the fuel pump.

Bonus Tip: Most vehicles have a small triangle-shaped arrow next to the fuel pump icon on the fuel gauge. This arrow indicates which side of your vehicle the fuel filler door is located on. This is a handy feature when you pull up to a gas pump, especially in rental cars or unfamiliar vehicles.

10. Automatic Shift Lock or Engine Start Indicator Light

)

What It Means

This dashboard symbol, which can vary in appearance but often includes a foot and brake pedal icon or the word “SHIFT LOCK” or similar, the Automatic Shift Lock or Engine Start Indicator Light is usually related to starting your car or shifting out of “Park” (P) in an automatic transmission vehicle.

It typically illuminates in situations where you are trying to shift gears or start the engine without properly engaging the brake pedal. Modern vehicles with automatic transmissions have a safety feature called a shift lock mechanism. This system prevents you from shifting out of “Park” or “Neutral” unless the brake pedal is depressed. Similarly, some vehicles require the brake pedal to be pressed to start the ignition.

What To Do

When this light appears, it’s a reminder to ensure you are pressing the brake pedal before attempting to shift gears or start the engine.

1. Press the Brake Pedal Firmly: Make sure your foot is firmly pressing down on the brake pedal.
2. Attempt to Shift Gears or Start Ignition: With the brake pedal depressed, try shifting the gear selector (if you were trying to shift out of “Park”) or turning the ignition key or pressing the start button (if you were trying to start the engine).

Normal Operation: This light is usually just an informational reminder and not a warning of a problem. It’s part of the normal operation of the shift lock or start safety system. Once you press the brake pedal, the light should turn off, and you should be able to shift gears or start the engine.

If the Light Persists: If the light remains on even when you are pressing the brake pedal, and you are still unable to shift gears or start the engine, there might be a problem with the shift lock mechanism, the brake light switch, or another related system. In this case, you may need to consult your owner’s manual or seek assistance from a mechanic.

11. Seat Belt Reminder Light

Seat Belt Reminder Light

What It Means

Depicted as a person wearing a seat belt, the Seat Belt Reminder Light is a straightforward safety reminder. It illuminates to indicate that the driver or a passenger is not wearing their seat belt. It is often accompanied by an audible warning, such as a repetitive dinging or buzzing sound, which continues until the seat belts are fastened.

What To Do

The action to take when the Seat Belt Reminder Light is on is simple and crucial for safety:

1. Fasten Your Seat Belt: If you are the driver or a passenger and the light (and audible warning) is active, immediately fasten your seat belt.
2. Ensure All Passengers are Buckled Up: Check that all passengers in the vehicle are also wearing their seat belts properly.

Safety Importance: Seat belts are one of the most effective safety features in vehicles. According to the Centers for Disease Control and Prevention (CDC), seat belts reduce the risk of serious injuries and fatalities in car crashes by approximately 50%.

The Seat Belt Reminder Light and audible warning are designed to encourage seat belt use and protect occupants in the event of a collision or sudden stop. Always ensure that you and your passengers are properly buckled up before driving and throughout your journey.

12. Airbag Warning Light

What It Means

Usually showing the word “AIRBAG” or a symbol of a person seated with an inflated airbag in front of them, the Airbag Warning Light signals a malfunction within your vehicle’s airbag system. This system includes not only the airbags themselves (frontal, side, curtain airbags, etc.) but also the sensors, control modules, and wiring that make up the entire Supplemental Restraint System (SRS).

When the Airbag Warning Light is illuminated, it indicates that one or more components of the airbag system may not be functioning correctly. This could mean that:

• Airbags Might Not Deploy in a Crash: In a collision where airbags are designed to deploy, they might fail to deploy, or they might deploy improperly.
• System Malfunction: There could be a problem with sensors, wiring, connectors, the airbag control module, or the airbags themselves.

What To Do

The Airbag Warning Light is a serious safety concern. Airbags are a critical part of your vehicle’s safety system, designed to protect you and your passengers in the event of a collision.

1. Schedule Immediate Service: As soon as you notice the Airbag Warning Light is on and stays on (after the initial system check at startup), schedule a service appointment with a qualified mechanic or dealership immediately.
2. Do Not Delay: Do not ignore or postpone getting this light checked. Driving with a potentially malfunctioning airbag system puts you and your passengers at increased risk in an accident.
3. Explain the Warning Light to Service Advisor: When you take your car in for service, clearly inform the service advisor about the Airbag Warning Light and that it’s continuously illuminated.

Possible Issues: The Airbag Warning Light can be triggered by a range of issues, including:

• Faulty Airbag Sensors: Sensors that detect impacts and trigger airbag deployment might be malfunctioning.
• Wiring Problems: Damaged or corroded wiring or connectors in the airbag system.
• Airbag Control Module Malfunction: The electronic control unit that manages the airbag system could be faulty.
• Problems with Airbag Inflators or Airbags Themselves: In rare cases, there might be issues with the airbags or their inflation mechanisms.
• Seat Belt Pretensioner Issues: Seat belt pretensioners are often part of the SRS and can also trigger the Airbag Warning Light if they malfunction.

Because the airbag system is complex and involves safety-critical components, diagnosis and repair should be performed by trained professionals. They have the specialized tools and knowledge to properly diagnose and fix airbag system problems.

13. Security Indicator Light

Security Indicator Light

What It Means

Often depicted as a padlock symbol, a key symbol, or the word “SECURITY” or “SEC”, the Security Indicator Light is related to your vehicle’s anti-theft or security system. Its behavior can indicate different states of the security system:

• Blinking Steadily When Security System is Armed: In most vehicles equipped with an anti-theft system, the Security Indicator Light will blink or flash steadily when the security system is armed and active (e.g., when the car is locked and the alarm system is set). This is normal operation, indicating the system is working to deter theft.
• Solid Light and Car Won’t Start (Immobilization): If the Security Indicator Light is continuously illuminated (solid) and your car will not start, it usually means the vehicle’s immobilizer system has been activated. This system is designed to prevent theft by disabling the engine from starting if it detects an unauthorized attempt to start the car (e.g., using the wrong key or trying to hotwire it). This can sometimes be triggered by a security system malfunction or a problem with key recognition.
• Solid Light and Car Runs Normally (Malfunction): If the Security Indicator Light is continuously illuminated (solid), but the car is running normally, it could indicate a malfunction within the security system itself. In this case, the security system might not be arming or disarming correctly, or there could be a sensor or system fault.

What To Do

The appropriate action depends on how the Security Indicator Light is behaving.

1. Blinking Light (Normal): A blinking Security Indicator Light when the car is locked is usually normal operation, indicating the security system is armed. No action is needed.
2. Solid Light, Car Won’t Start (Immobilization):
   • Check Owner’s Manual: Consult your vehicle’s owner’s manual for specific instructions on how to deactivate the security system or reset the immobilizer. There might be a specific procedure involving the key, key fob, or entering a security code.
   • Try Spare Key: If you have a spare key, try using it to start the car. Sometimes, a key malfunction can trigger the immobilizer.
   • Check Battery in Key Fob: If your car uses a key fob, make sure the battery in the fob is not dead or weak. A low battery in the fob can sometimes cause security system issues.
   • Seek Professional Help: If you cannot start the car and the Security Indicator Light remains solid, you may need to contact a locksmith specializing in automotive security systems, a dealership service department, or roadside assistance to diagnose and resolve the immobilizer issue.
3. Solid Light, Car Runs Normally (Malfunction):
   • Security System May Not Be Working: If the light is solid while driving, your security system may not be functioning correctly. It might not arm properly when you lock the car, leaving your vehicle more vulnerable to theft.
   • Schedule a Check: It’s advisable to have your vehicle’s security system checked by a qualified mechanic or dealership service department to diagnose and repair the malfunction.

14. Fog Lamp Indicator Light

Fog Light Indicator Light

What It Means

Typically depicted as a headlight symbol with a wavy vertical line crossing through the light beams, the Fog Lamp Indicator Light is a simple indicator that your vehicle’s fog lights are currently turned on. There are usually separate indicator lights for front and rear fog lights if your vehicle is equipped with both.

What To Do

The Fog Lamp Indicator Light itself is not a warning light. It’s an informational light to let you know that your fog lights are active.

1. Check if Fog Lights are Needed: Fog lights are designed to improve visibility in foggy, heavy rain, or snowy conditions. They are typically low-mounted and produce a wide, low beam of light that cuts through fog and illuminates the road surface beneath the fog.
2. Use Only When Visibility is Reduced: Fog lights should only be used when visibility is significantly reduced due to fog, heavy rain, snow, or dust. Using fog lights in clear conditions or normal nighttime driving can actually reduce your own visibility due to glare and can also be distracting or blinding to other drivers, especially oncoming traffic.
3. Turn Off When Visibility Improves: When visibility improves and fog, rain, or snow lessens, remember to turn off your fog lights.

Legality: In many regions, there are laws regarding the proper use of fog lights. It’s often illegal to use fog lights in clear weather, as it can be considered misuse of lighting equipment. Be aware of local regulations regarding fog light usage.

15. Washer Fluid Indicator Light

Washer Fluid Light

What It Means

Often depicted as a windshield with water spray or a similar symbol mimicking windshield wipers spraying fluid, the Washer Fluid Indicator Light is a straightforward reminder that your windshield washer fluid reservoir is running low and needs to be refilled.

What To Do

When the Washer Fluid Indicator Light illuminates, it’s a signal to replenish your windshield washer fluid.

1. Replenish Washer Fluid: Add windshield washer fluid to the reservoir under the hood as soon as it’s convenient. You can purchase washer fluid at most gas stations, auto parts stores, and general retail stores.
2. Use Proper Washer Fluid: Use a quality windshield washer fluid that is designed for automotive use. Plain water should be avoided, especially in colder climates, as it can freeze and damage the washer system. Use a fluid with antifreeze properties, especially in winter, to prevent freezing and to help remove ice and frost from the windshield.

Importance of Washer Fluid: Windshield washer fluid is essential for maintaining clear visibility while driving, especially in inclement weather or when your windshield becomes dirty from road grime, insects, or bird droppings. Having adequate washer fluid is crucial for safe driving.

16. Brake Warning Light

Brake Warning Light

What It Means

Typically displayed as the word “BRAKE” in red letters, or sometimes as an exclamation point inside a circle or a caliper symbol, the Brake Warning Light can indicate two primary issues:

1. Parking Brake Engaged: The most common reason for the Brake Warning Light to illuminate is that the parking brake (also called emergency brake or handbrake) is engaged or partially engaged.
2. Braking System Problem: If the parking brake is definitely fully released, and the Brake Warning Light remains on, it signals a potentially serious problem within your vehicle’s braking system itself. This could include:
   • Low Brake Fluid Level: A drop in brake fluid level can indicate a leak in the hydraulic brake system.
   • Brake System Malfunction: Other issues within the braking system, such as problems with brake boosters, ABS (though ABS often has its own separate warning light), or other brake components.

What To Do

The Brake Warning Light is a critical safety indicator that requires immediate attention.

1. Check Parking Brake First: The first step is to ensure that your parking brake is fully released. Sometimes, it may be only partially engaged, causing the light to stay on. Fully release the parking brake and see if the light turns off.
2. If Light Remains On (Parking Brake Released): If the Brake Warning Light stays illuminated even after you are certain the parking brake is fully released, it indicates a potential braking system malfunction. In this situation:
   • Stop Driving (Safely): Pull over to a safe location and stop driving your vehicle as soon as possible.
   • Do Not Drive Further (Potentially): Driving with a Brake Warning Light on (when the parking brake is off) can be dangerous. Your braking ability might be compromised, increasing the risk of accidents.
   • Check Brake Fluid Level (If Safe and You Know How): If you are comfortable and know how to do so safely, you can check the brake fluid reservoir level under the hood. If it is visibly low, it could indicate a brake fluid leak. However, even if the level seems okay, there could still be other brake system problems.
   • Seek Professional Assistance: It is strongly recommended to have your vehicle towed to a qualified mechanic or service center for a thorough brake system inspection and repair. Do not attempt to drive it to the repair shop if the Brake Warning Light remains on after releasing the parking brake, as it could be unsafe.

Importance of Brake System: Your vehicle’s brakes are obviously crucial for safety. Any warning light related to the braking system should be treated with utmost seriousness and addressed promptly.

17. Lane Departure Warning Light

Lane Departure Warning Light

What It Means

Typically depicted as lane markings on a road with a car symbol and sometimes an arrow indicating deviation from the lane, the Lane Departure Warning Light is related to your vehicle’s Lane Departure Warning System (LDWS). This is a safety feature found in many modern cars. The LDWS uses cameras or sensors to monitor your vehicle’s position within lane markings on the road.

• Active System Warning: When the Lane Departure Warning Light illuminates, it generally means the system has detected that your vehicle is drifting out of its lane without you having signaled a lane change. It’s a warning to correct your steering and stay within your lane.
• System Activation/Deactivation: In some vehicles, this light might also indicate when the Lane Departure Warning System is active or deactivated.

What To Do

When the Lane Departure Warning Light activates:

1. Correct Steering: If the light comes on, and especially if it’s accompanied by an audible warning (beep or vibration), it means you are drifting out of your lane. Gently correct your steering to bring your vehicle back into the center of your lane.
2. Check Driving Conditions: Be aware of why you might be drifting. Are you fatigued, distracted, or is there a crosswind or uneven road surface affecting your vehicle’s tracking?
3. Intentional Lane Change: The Lane Departure Warning System is designed to warn you of unintentional lane drift. It is usually designed to allow for intentional lane changes when you use your turn signal. If you are purposefully changing lanes and have signaled, the warning light should not activate, or it might briefly flash and then turn off.

Not a Malfunction Light (Usually): The Lane Departure Warning Light is typically not a malfunction indicator itself. It’s an alert that the system is working and has detected a lane departure situation. However, if the light stays on continuously or behaves erratically even when you are driving straight within your lane, there might be a sensor or system problem. In such cases, consult your owner’s manual or have the system checked by a mechanic.

18. Transmission Temperature Warning Light

)

What It Means

Often depicted as a gear symbol with a thermometer inside or next to it, or sometimes with the words “TRANS TEMP” or similar, the Transmission Temperature Warning Light indicates that your vehicle’s automatic transmission is overheating.

Overheating in an automatic transmission can be caused by several factors, including:

• Low Transmission Fluid: Insufficient transmission fluid can reduce cooling and lubrication, leading to overheating.
• Contaminated or Old Transmission Fluid: Fluid that is old, degraded, or contaminated with debris can lose its cooling and lubricating properties.
• Heavy Towing or Hard Driving: Towing heavy loads or driving aggressively, especially in hot weather, can put extra stress on the transmission and cause it to overheat.
• Transmission Problems: Internal mechanical issues within the transmission itself can also lead to overheating.
• Cooling System Issues: Problems with the transmission cooler (often integrated with the engine radiator) or its lines can reduce cooling efficiency.

What To Do

An overheating transmission can suffer serious damage, including damage to clutches, gears, and other internal components. It’s important to act promptly when the Transmission Temperature Warning Light illuminates.

1. Pull Over Safely and Stop: As soon as it is safe to do so, pull your vehicle off the road to a safe location and stop.
2. Shift to Park and Let Engine Idle (or Turn Off Engine – Check Manual): Shift your transmission into “Park” (P). Consult your owner’s manual for specific recommendations. Some manuals might advise letting the engine idle in “Park” to allow the transmission fluid to circulate and cool down. Others might recommend turning off the engine to reduce heat generation. Follow your manual’s guidance.
3. Allow Transmission to Cool Down: Let the transmission cool down for at least 20-30 minutes. Avoid driving during this time.
4. Check Transmission Fluid Level (If You Know How and It’s Safe): If you are comfortable and know how to check your automatic transmission fluid level (some vehicles have a dipstick for this, others do not – check your owner’s manual), you can cautiously check the fluid level after the transmission has cooled down somewhat. Low fluid is a common cause of overheating. However, note that checking transmission fluid on some modern cars is not a simple DIY task and might require specific procedures.

After Cooldown:

1. Restart Engine and Check Light: After allowing sufficient cooldown time, restart the engine and see if the Transmission Temperature Warning Light has turned off.
2. Proceed with Caution: If the light is off, you may be able to carefully proceed to the nearest service center for a checkup. Drive gently, avoid heavy acceleration, high speeds, and towing, and monitor the transmission temperature warning light closely.
3. If Light Remains On or Returns Quickly: If the Transmission Temperature Warning Light remains on or comes back on quickly after you start driving again, do not continue driving. Call for a tow truck to transport your vehicle to a qualified mechanic or transmission specialist for diagnosis and repair.

Do Not Ignore Transmission Overheating: Ignoring a Transmission Temperature Warning Light and continuing to drive can lead to severe and costly transmission damage, potentially requiring a complete transmission rebuild or replacement. Prompt attention is essential to prevent major repairs.

[Read: Common Causes of Transmission Overheating](Link to a relevant article about transmission overheating – if available, otherwise remove this line)]

Car Trouble? We’re Here to Help

Dashboard warning lights are your car’s way of communicating potential problems, big or small. Understanding what they mean is the first step in ensuring your vehicle’s health and your safety on the road.

Whether it’s a simple issue like low tire pressure or a more complex problem indicated by the Check Engine Light or Transmission Temperature Warning, Virginia Tire & Auto is here to assist. Our expert technicians can accurately diagnose the cause of any warning light and provide the necessary repairs to get you back on the road with confidence.

Don’t ignore those dashboard signals. If you see a warning light illuminated, especially a red or flashing one, take it seriously. Schedule a visit to one of our convenient locations today! We’re committed to providing expert car care and keeping you safely on your journey.