As you sit in your car, you may notice various lights illuminating your dashboard. These lights serve as important indicators, alerting you to potential issues or providing valuable information about your vehicle's systems.
Understanding what each light signifies is crucial for maintaining the safety and performance of your car.
In this comprehensive guide, we will explore the meaning behind the most common lights you may encounter while driving.
Lights on a Car Dashboard
Following are the 78 common warning lights on a car dashboard, explained one by one with symbols and indicators:
- Battery Charge Warning Light
- Power Steering Warning Light
- Engine Temperature Warning Light
- Ignition Switch Warning Light
- Traction Control Light
- Security Alert Light
- Reduced Power Warning
- Headlight Range Control Light
- Press Clutch Pedal Light
- Trailer Tow Hitch Warning
- Low Fuel Level Warning
- Tire Pressure Warning Light
- Transmission Pressure Warning Light
- Vehicle Service Warning Light
- Diesel Fuel Filter Warning
- Side Light Indicator
- Front Fog Lights
- Lane Assist Light
- High Beam Light Indicator
- Speed Limiter Light
- Seat Temperature Light
- Hood Or Bonnet Open Warning
- Master Warning Light
- Seat Belt Warning Light
- Air Suspension Light
- Distance Travel Warning
- Side Airbag Light
- ESP Fault or Traction Control Malfunction
- Gas or Fuel Cap Warning Light
- Brake Fluid Light
- Information Warning Light
- Clogged Air Filter Light
- Powertrain Fault Warning
- Airbag System Warning
- Anti-lock Braking System Warning
- Diesel Exhaust Fluid Warning
- Lamp Out Light
- Reverse Gear Light
- Anti-Theft Light Warning
- Catalytic Converter Warning
- Automatic Gearbox Warning
- Child Safety Lock Light
- Check Engine Light
- Overdrive Light
- Steering Wheel Lock
- Fan Light
- Washer Fluid Reminder Light
- Rear Window Defrost Light
- Key Not in Vehicle Warning
- Forward Collision Warning Light
- Key Fob Battery Light
- Water Fluid Filter Warning
- Car on Jack Warning Light
- Rear Spoiler Warning Light
- HDC Warning Light
- Lane Departure Warning
- Cruise Control Light
- Exterior Light Fault Warning
- Glow Plug Indicator
- Start/Stop Warning Light
- EV Mode Light
- Eco Driving Mode Light
- Direction Indicator
- Door Ajar Light
- Convertible Roof Warning
- Low Beam Indicator Light
- Brake Light Warning
- Hazard Lights On
- Auto Windscreen Wiping Light
- Adaptive Light System
- Rear Fog Lights Switched On
- Rain and Light Sensor
- Traction Control Off Light
- Cabin Air Light
- Parking with Park Assist Light
- Blind Spot Indicator Light
- AEB Light
- Adaptive Cruise Control Light
Battery Charge Warning Light
The battery charge warning light, typically represented by a battery symbol, alerts you to potential issues with your vehicle's charging system.
It illuminates when the battery isn't receiving sufficient charge from the alternator. Possible causes include a faulty alternator, loose or corroded battery connections, or a worn-out serpentine belt.
If this light turns on while driving, it's essential to address the problem promptly to prevent a dead battery and potential stalling.
Power Steering Warning Light
The power steering warning light, often depicted as a steering wheel with an exclamation mark or the letters "EPS" (Electric Power Steering), illuminates when there's a fault in the power steering system.
This light serves as a warning that the power-assisted steering may not be functioning correctly, requiring manual effort to steer the vehicle.
It's crucial to have the power steering system inspected and repaired by a professional.
Engine Temperature Warning Light
The engine temperature warning light, often depicted as a thermometer or teapot, illuminates when the engine's temperature exceeds the normal operating range.
It serves as an indication of potential overheating, which can result from factors such as a malfunctioning cooling system, low coolant levels, or a faulty thermostat.
When this light turns on, it's crucial to pull over, allow the engine to cool down, and check the coolant levels. Continuing to drive with an overheating engine can lead to severe damage and breakdown.
Ignition Switch Warning Light
The ignition switch warning light, often represented by a key symbol or the word "IGNITION," illuminates when there's a problem or issue with the vehicle's ignition system.
It typically indicates a fault with the ignition switch, ignition lock cylinder, or associated components. When this light turns on, it's important to have the ignition system inspected and repaired by a professional to ensure proper starting and operation of the vehicle.
Traction Control Light
The traction control light, often represented by the letters "TC" or a vehicle with wavy lines beneath it, indicates that the traction control system is actively engaged.
This system helps prevent wheel slip and loss of control during acceleration on slippery surfaces.
The light illuminates when the traction control system detects wheel slippage and adjusts the engine power or applies the brakes to maintain traction.
Security Alert Light
Security alert light, typically represented by a key or a padlock symbol, indicates a potential issue with your vehicle's security system.
It may illuminate if the system detects unauthorized access attempts or malfunctions.
If this light turns on and persists, it's advisable to consult your vehicle's manual or contact a professional to diagnose and address the security system concern.
Reduced Power Warning
The "Reduced Power Warning" is a common warning light that can appear on a car's dashboard.
This warning light typically illuminates when there is a problem with the vehicle's engine management system.
When the reduced power warning light comes on, it indicates that the engine's power output has been limited or reduced to protect the engine from potential damage.
Headlight Range Control
The headlight range control light, often represented by a headlight symbol with arrows pointing up and down, indicates the status of the vehicle's automatic headlight leveling system.
This system adjusts the vertical aim of the headlights based on the vehicle's load or road conditions to ensure optimal lighting without blinding other drivers.
The light may illuminate when the system is active or when there's a fault or malfunction that requires attention.
Press Clutch Pedal
The press clutch pedal light appears in vehicles equipped with manual transmissions and serves as a reminder to press the clutch pedal when starting the engine.
It indicates that the vehicle's starting system requires the clutch pedal to be depressed for the engine to start successfully.
Trailer Tow Hitch Warning
The trailer tow hitch warning light is specific to vehicles equipped with a towing capability.
It illuminates when there's an issue with the trailer hitch or the connection between the vehicle and the trailer.
This light serves as a reminder to inspect the trailer hitch, ensure proper attachment, and address any problems before towing.
Oil Pressure Warning Light
The oil pressure warning light, often depicted as an oil can or oil droplet, indicates low oil pressure in the engine.
It illuminates when the oil pressure falls below the recommended level, which can occur due to factors like low oil levels, a malfunctioning oil pump, or oil leaks.
When this light turns on, it's crucial to stop the vehicle safely and check the oil levels. Continuing to drive with insufficient oil pressure can cause significant engine damage.
Low Fuel Level Warning
The low fuel level light, often represented by a symbol of a fuel pump or a low fuel indicator, illuminates when the vehicle's fuel level is low.
It serves as a reminder to refuel the vehicle to avoid running out of fuel. Ignoring this warning could result in the vehicle stalling and being stranded.
Tire Pressure Warning Light
The tire pressure warning light, represented by an exclamation mark within a horseshoe-shaped tire, illuminates when the tire pressure in one or more tires drops below the recommended level.
It can be triggered by factors like changes in temperature, punctures, or slow leaks.
When this light turns on, it's important to check the tire pressures using a gauge and inflate them to the recommended levels.
Proper tire pressure ensures optimal handling, fuel efficiency, and tire longevity.
Transmission Pressure Warning Light
The transmission pressure warning light is a specific warning light that indicates a problem with the transmission system's fluid pressure.
This warning light typically looks like a gear or an exclamation mark inside a gear, and it illuminates when the transmission pressure falls outside the normal operating range.
Vehicle Service Warning Light
The vehicle service warning light is a general indicator that alerts the driver to the need for routine maintenance or service on the vehicle.
This warning light typically appears as a wrench or a spanner symbol and can vary slightly depending on the vehicle manufacturer.
The purpose of the vehicle service warning light is to remind the driver that it's time to schedule a maintenance appointment or perform specific service tasks as outlined in the vehicle's maintenance schedule.
The specific requirements for service may vary based on factors such as mileage, elapsed time since the last service, or specific vehicle conditions.
Diesel Fuel Filter Warning
This warning light is exclusively used in vehicles with diesel engines.
The Diesel fuel filter warning light illuminates when there's a restriction or issue with the vehicle's fuel filter.
A clogged or contaminated fuel filter can impact engine performance and fuel efficiency. The light serves as a reminder to have the fuel filter inspected and replaced if necessary.
Side Light Indicator
The side light indicator illuminates when the vehicle's side lights or parking lights are turned on.
These lights provide minimal illumination and are used for parking or when the vehicle is stationary.
The light serves as a reminder to other drivers and pedestrians that the side lights are in use.
Front Fog Lights
The front fog lights indicator illuminates when the vehicle's front fog lights are turned on.
These lights are designed to enhance visibility in foggy or misty conditions by providing a low, wide beam of light that illuminates the road closer to the vehicle.
Remember to use front fog lights only when necessary and to turn them off when visibility improves.
Lane Assist Light
The lane assist light, also known as the lane departure warning light, is a feature that is designed to help drivers stay within their lane and prevent unintentional drifting.
This light is represented by a symbol of a vehicle with dotted lane lines on each side.
The purpose of the lane assist system is to monitor the vehicle's position on the road using various sensors, such as cameras or radar.
If the system detects that the vehicle is drifting out of its lane without the driver activating the turn signal, it can provide visual, audible, or tactile alerts to bring the driver's attention back to the road.
High Beam Light Indicator
The high-beam light indicator illuminates when the vehicle's high-beam headlights are turned on. It alerts other drivers and pedestrians that your vehicle's high beam lights are in use, providing increased visibility and illumination on the road ahead.
Remember to switch to low-beam headlights when approaching oncoming traffic to avoid blinding other drivers.
Winter Mode
The winter mode light, often represented by a snowflake symbol, illuminates when the vehicle's winter driving mode is engaged.
Winter mode adjusts the vehicle's throttle response and traction control settings to optimize performance and stability in slippery or icy conditions.
The light serves as a reminder that the vehicle is in winter mode.
Speed Limiter Light
The speed limiter light illuminates when the vehicle's speed limiter is engaged. The speed limiter allows the driver to set a maximum speed for the vehicle, preventing it from exceeding the specified limit.
The light serves as a reminder that the speed limiter is active and the vehicle's speed is restricted.
Seat Temperature Light
The seat temperature light illuminates when the vehicle's seat heating or cooling system is activated. This system allows the driver and passengers to adjust the temperature of their seats for enhanced comfort.
The light serves as a reminder that the seat temperature feature is in use.
Hood Or Bonnet Open Warning
The hood or bonnet open light illuminates when the vehicle's hood or bonnet is not securely closed.
It serves as a reminder to check and properly latch the hood to prevent it from opening while driving, which can obstruct the driver's view and potentially cause damage to the vehicle.
Lights on a Car: From Master Warning Light to Reverse Gear Light |
Master Warning Light
The master warning light, often represented by an exclamation mark within a triangle, is a general warning indicator that alerts you to various potential issues within the vehicle.
It can illuminate alongside other specific warning lights or independently to indicate a non-specific problem. When this light turns on, it's recommended to check other gauges and warning lights for more detailed information.
Seat Belt Warning Light
The seat belt warning light reminds you to fasten your seat belt for your safety and compliance with traffic laws.
It illuminates if the driver or any occupant in the vehicle hasn't buckled their seat belt. Ensure that all occupants are properly restrained before starting your journey.
Air Suspension Light
The air suspension light, often represented by a vehicle with an arrow pointing upward and downward, indicates the status of the air suspension system.
This system uses air-filled components to adjust the vehicle's ride height and provide a smoother ride.
The light may illuminate when the system is active or when there's a fault or issue with the air suspension that requires attention.
Distance Travel Warning
The distance warning is a safety feature found in some vehicles that alert drivers when their vehicle gets too close to the vehicle in front.
This warning is designed to help prevent rear-end collisions and promote safe following distances.
Side Airbag Light
The side airbag light indicates the status of the side airbag system. It illuminates when there's a fault in the system or when the side airbags have been deactivated.
Side airbags provide additional protection in the event of a side-impact collision. If this light remains illuminated, it's important to have the system checked by a qualified technician.
ESP Fault or Traction Control Malfunction
The ESP fault or traction control malfunction light illuminates when there's a fault in the Electronic Stability Program (ESP) or traction control system.
It indicates a potential issue with the vehicle's stability and traction control systems, which help maintain stability and prevent skidding during cornering or slippery conditions.
It's advisable to have the system inspected and repaired by a qualified technician.
Gas or Fuel Cap Warning Light
The gas or fuel cap light appears when the fuel cap is not properly tightened or secured.
It reminds you to check and ensure that the fuel cap is securely fastened to prevent fuel evaporation and maintain the integrity of the fuel system.
Brake Fluid Light
The brake fluid light is a critical indicator on the car's dashboard that warns the driver about the brake fluid level in the vehicle's braking system.
This warning light is designed to ensure that the driver is aware of any potential issues with the brake fluid that could impact the vehicle's braking performance and overall safety.
Information Warning Light
The information warning light, often depicted as an "i" within a square or circle, indicates that there's important information or a message displayed on the vehicle's information display panel.
It alerts you to check the display for additional details or instructions. This light may accompany other specific warning lights to draw your attention to critical information.
Clogged Air Filter Light
The clogged air filter light indicates that the engine's air filter is obstructed or dirty, affecting the air intake and potentially reducing engine performance.
It's important to have the air filter inspected and replaced if necessary to maintain optimal engine efficiency and prevent potential damage.
Electric Park Brake Light
The electric parking brake light illuminates when the electric parking brake is engaged. It serves as a reminder to release the parking brake before driving.
If the light remains illuminated even when the parking brake is released, there may be a malfunction in the electric park brake system that requires attention.
Icy Road Warning Light
The icy road warning light, often represented by a snowflake or a vehicle on slippery road markings, illuminates to indicate the presence of icy or slippery road conditions.
It's typically activated when the outside temperature is near or below freezing.
This light serves as a reminder to exercise caution and adjust your driving behavior to ensure safe handling on slippery surfaces.
Adaptive Suspension Dampers
The adaptive suspension dampers light indicates the status of the vehicle's adaptive suspension system.
This system automatically adjusts the stiffness or damping of the suspension based on driving conditions and driver preferences.
The light illuminates when the system is active or when there's a fault or malfunction that requires attention.
Powertrain Fault Warning
The powertrain encompasses the engine, transmission, and drivetrain components.
When this light turns on, it indicates the need for immediate attention and diagnostic assessment to identify and resolve any underlying problems.
Airbag System Warning
The airbag system light, often represented by an icon of a person with an inflated airbag, illuminates when there's a fault or issue detected in the vehicle's airbag system.
It indicates that the airbags may not deploy in the event of a collision or that there's a problem with the system's sensors or wiring.
It's crucial to have the airbag system inspected and repaired by a professional to ensure proper operation in case of an accident.
Anti-lock Braking System (ABS) Light
The anti-lock braking system (ABS) light, often depicted by the letters "ABS" or the word "ANTIBLOCK," illuminates when there's a fault or issue detected in the ABS system.
The ABS helps prevent wheel lock-up during sudden braking or slippery conditions, enhancing vehicle control.
When this light turns on, it's advisable to have the ABS system checked by a professional to ensure proper functioning.
Diesel Exhaust Fluid Warning
These warning lights are only used in diesel vehicles and the exhaust fluid light, often represented by an icon of an exhaust pipe with droplets, illuminates when the vehicle's exhaust fluid level is low.
Lamp Out Light
The lamp out light, often represented by a bulb symbol or an exclamation mark within a circle, illuminates when there's a malfunction or failure in one or more of the vehicle's exterior lights.
It serves as a reminder to inspect and replace any faulty bulbs to maintain proper lighting and visibility on the road.
Oil Change Reminder Light
The oil change reminder light illuminates to remind you that it's time to change the engine oil.
Modern vehicles are equipped with oil life monitoring systems that track driving conditions and mileage to determine the appropriate oil change interval.
When this light turns on, it's important to schedule an oil change as soon as possible to maintain engine performance and longevity.
Reverse Gear Light
The reverse gear light is an indicator on the car's dashboard that illuminates when the vehicle is shifted into the reverse gear.
This light serves as a visual confirmation for the driver, indicating that the transmission is engaged in reverse and the vehicle is ready to move backward.
Anti-Theft Light Warning
Catalytic Converter Warning
Automatic Gearbox Warning
Child Safety Lock Light
Check Engine Light
Overdrive Light
Windshield Defrost Light
Steering Wheel Lock Light
Fan Warning Light
Washer Fluid Reminder Light
Rear Window Defrost Light
Key Not in Vehicle Warning Light
Forward Collision Warning Light
Key Fob Battery Light
Water Fluid Filter Warning
Car on Jack Warning Light
Rear Spoiler Warning Light
Hill Descent Control (HDC) Warning Light
Lane Departure Warning
Cruise Control Light
Exterior Light Fault
Glow Plug Indicator
Start/Stop Warning Light
EV Mode Light
Eco Driving Mode
Brake Hold Indicator Light
Direction Indicator
Door Ajar Light
Convertible Roof Warning Light
Low Beam Indicator Light
Brake Warning Light
Hazard Lights On
Auto Windscreen Wiping
Adaptive Light System
Rear Fog Lights Switched On
Rain and Light Sensor Warning
Traction Control Off Light
Cabin Air Light
Parking with Park Assist Light
Blind Spot Indicator Light
Automatic Emergency Braking (AEB) Light
Adaptive Cruise Control Light
Remember, the specific warning lights and their meanings may vary depending on the make, model, and year of your vehicle. Always refer to your vehicle's manual for accurate information regarding the dashboard warning lights specific to your vehicle.