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The Meaning of 52 Car Dashboard Indicators

The Meaning of 52 Car Dashboard Indicators

These car warning lights are meant to alert the driver to an issue that the vehicle is experiencing so they can take care of it before it becomes worse (and ultimately more costly). 

Car maintenance isn’t cheap, but paying attention to what your vehicle is trying to tell you can help keep car maintenance costs down. 

This guide to car lights is beneficial to not only new drivers but veteran drivers who may only recognize what a handful of these car symbols mean. 

The colors and locations of each dashboard icon may vary, so it is still crucial to consult your vehicle’s user manual for a more precise interpretation of its warning lights. 

One important detail to remember when it comes to dashboard warning lights is that if the light is on but not blinking, the issue is not urgent, but if the warning light is on and blinking, the issue needs to be taken care of immediately.

5 Tips to Keep Car Maintenance Costs Down

Change the engine oil and the air filters regularly throughout the year, which is every 3,000 to 5,000 miles for most cars. 

Regularly getting your oil changed will help keep the engine running efficiently, and changing the air filter will not only keep the air you’re breathing cleaner but also keep your air conditioning system in top shape.

Check the air pressure in your car’s tires every month to make sure they’re properly inflated. 

This is especially important when the temperatures get colder, as the cold causes the air pressure in tires to drop. 

You’ll also want to check the air pressure in your spare tire so that it’s ready to drive on if you ever need it in an emergency.

Rotate your tires to get the most life out of them. The front and back set of your vehicle’s tires can wear down at different rates, and making sure to rotate them every so often can extend their life and save you money on a new set of tires.

Check the fluids in your car regularly to make sure they’re not getting too low and affecting how well your vehicle operates. 

The fluids to regularly check to include the coolant, which keeps the heat and air conditioning, radiator, and pump running smoothly; the oil level, to keep the engine running smoothly; and the window washer fluid, to keep the windshield free of dirt and debris that could obstruct your view.

Pop the hood and inspect the belts and hoses for wear. Worn-out belts can cause a lot of damage to your car’s engine if they break, and it’s a far cheaper fix to replace a belt or hose rather than having to replace the entire engine.

LightWhat it Means or Could Mean (if applicable)
Check Engine (or Malfunction Indicator Light)Indicates that the engine computer has noticed a problem
Oxygen sensor needs to be replaced
Gas cap is loose, damaged, or missing
Bad catalytic converter
Mass airflow sensor needs to be replaced
Spark plugs or plug wires need to be replaced
Coolant Temp WarningTemperature has exceeded normal limits
Oil Pressure WarningLoss of oil pressure
Service VehicleLighting or electrical problem
Traction control problem
Communication problem between modules
Brake SystemParking brake is on
Brake fluid is low
ABS problem
ABS LightAnti-lock brake computer needs professional diagnosis
Anti-lock brake feature may be disabled
Cruise ControlCruise control is set
Security AlertIf it lights momentarily, ignition switch may be locked and need transponder-equipped key to start
If it stays on, security system is malfunctioning
Traction Control or Electronic Stability ControlVehicle’s traction/anti-skid or electronic stability system is in use
Conditions may be slippery
Overdrive OffVehicle’s overdrive system has been manually disabled
Washer Fluid ReminderWasher fluid is low
Battery/Charging AlertBattery voltage level is below normal
Vehicle’s charging system not functioning properly
Battery terminals, alternator belt, serpentine belt, or fuses may be faulty
Transmission TemperatureTransmission is operating at higher temperature than normal
Transmission fluid is hotter than normal
Oil Change ReminderOil life is low
TPMS (Tire Pressure Monitoring System)Low tire pressureSensor malfunction
Reduced Power WarningEngine computer has limited engine power output
Modern vehicles limit vehicle performance to prevent further damage; could be caused by engine trouble, transmission faults, or a bad battery
Gas CapGas cap is attached improperly
ESC FaultProblem with vehicle’s traction control, anti-skid, or electronic stability control system
Lamp OutAn exterior light is not functioning properly
Door AjarDoor, hood, or trunk not closed properly
Airbag FaultIf light stays illuminated after starting, indicates fault in airbag system
Fog LampFog lamps are activated
Automatic Shift Lock (or Engine Start Indicator)Engage the brake to start ignition or shift out of neutral
Low Fuel Indicator
Seat Belt Reminder Light
Rear Window Defrost
Automatic Gearbox WarningAbnormal reading from transmission sensors (possibly fluid temperature, fluid level, or overall pressure)
Trailer Tow Hitch WarningTow hitch is unlocked
Faulty lighting system
Catalytic Converter WarningCatalytic converter is overheating or not operating properly
Brake Pad WarningBrake pads are too thin
Power Steering Warning LightLow power steering fluid
Power steering may be disabled
Brake Light WarningBrake lights not functioning properly
Distance WarningObject in the road ahead of vehicle is approaching too quickly
Air Suspension WarningCompressor not providing as much air as it should
Leak in one of the bags
Fuel Filter WarningFuel filter reaching maximum capacity, needs to be emptied
Frost WarningIce may be forming on the road
Steering Lock WarningSteering is locked to prevent theft
Dirty Air FilterAir filter needs replacing or inspecting
Speed LimiterDriver set a speed limit that the vehicle will not exceed
Lane Departure Warning
Key Fob Battery Low
Hood Open Warning
Winter ModeWinter mode activated (vehicle moves in second or third gear to prevent tires from spinning and slipping)
Rain and Light SensorIssue detected; system deactivated temporarily
Sensors may be blocked by debris
Rear Spoiler WarningSpoiler system malfunctioning (loose/broken connector, blown fuse, leak)
Eco Driving IndicatorIndicates engine is operating close to maximum miles per gallon
High Beam On Indicator
Adaptive Light WarningAdaptive lighting system malfunctioning (debris may be blocking sensors)
Hill Descent ControlVehicle automatically controls braking down steep hills
Glow Plug (Diesel)Engine’s glow plugs are warming up; engine should not be started until this light turns off
DPF Light (Diesel)Diesel exhaust particulate filter failed test and needs service
DEF Light (Diesel)Diesel exhaust fluid reservoir low


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  1. Musadique Hassen June 19, 2023 Reply
    • The EngineerAuthor June 20, 2023 Reply

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