Important Note: This is a general guide. Consult your owner's manual for the most accurate and complete explanation of the warning lights specific to your vehicle. The manual will show pictures of the lights and precisely explain their meanings.
* Check Engine Light (usually an engine symbol): This indicates a problem with the engine's emission control system. It could be anything from a loose gas cap to a serious engine malfunction. A scan tool (available at auto parts stores) is needed to read the diagnostic trouble codes (DTCs) to pinpoint the issue.
* Battery Light (usually a battery symbol): Indicates a problem with the charging system. This could be a failing alternator, bad battery, or loose connection.
* Oil Pressure Light (usually an oil can symbol): This is a VERY serious warning. It means your engine isn't getting enough oil pressure, which can lead to catastrophic engine damage within minutes. Pull over immediately and turn off the engine. Do not restart it until the problem is diagnosed and fixed.
* Brake Warning Light (usually a circle with an exclamation point inside or a brake symbol): This can indicate several issues: low brake fluid, malfunctioning brake system, or the parking brake is engaged.
* Temperature Warning Light (usually a thermometer symbol): This indicates the engine is overheating. Pull over immediately and turn off the engine to prevent serious damage.
* ABS Light (usually an ABS symbol): This light indicates a problem with the Anti-lock Braking System. Your brakes will still work, but the ABS functionality may be impaired.
* Seatbelt Warning Light (usually a seatbelt symbol): Reminds the driver and/or passengers to fasten their seatbelts.
* Airbag Warning Light (usually an airbag symbol): Indicates a problem with the airbag system. This requires immediate professional attention.
* Low Fuel Light (usually a fuel pump symbol): Your fuel level is low.
* Security Light (usually a key symbol or a lock symbol): Indicates a problem with the vehicle's anti-theft system.
What to do if a warning light comes on:
* Consult your owner's manual: This is the first and best resource.
* Don't ignore warning lights: Especially those indicating serious problems like oil pressure or overheating.
* Pull over safely if necessary: If a light indicates a serious problem, pull over as soon as it is safe to do so.
* Get your vehicle checked: Take your vehicle to a qualified mechanic for diagnosis and repair.
Ignoring warning lights can lead to costly repairs or even accidents. It's always best to address them promptly.
