What Do Various Warning Lights Mean?
2 Answers
Automotive warning lights indicate that there are certain faults in the vehicle when preparing to start it. Classification of automotive warning lights: Automotive warning lights are mainly divided into three categories: indicator lights (green lights), which explain some basic conditions of the vehicle and indicate its current working state; caution lights (yellow lights), which indicate that the vehicle's current state is abnormal or the operation is incorrect; and warning lights (red lights), which indicate that the vehicle has a fault and requires maintenance. Common automotive warning lights: Engine warning light: when the engine warning light on the car lights up, it indicates that the car's engine has a fault. Such faults are generally very serious. Brake system warning light: once the brake system warning light comes on, it indicates that the car's braking system has a fault or the brake fluid is insufficient.
I'm particularly fascinated by studying cars, where each warning light on the dashboard tells its own story. When the engine warning light comes on, it signifies a fault in the engine control system—ranging from simple oxygen sensor issues to complex exhaust emission problems. Ignoring it can increase fuel consumption or even damage the engine. If the oil pressure light flashes, you must immediately turn off the engine and pull over, as insufficient oil can cause piston seizure and total engine failure. When the brake warning light illuminates, it indicates low brake system pressure or brake fluid leakage, and neglecting it may lead to complete brake failure. A constantly lit ABS light means the anti-lock braking system is malfunctioning, making it easier to lose control and skid when braking in the rain. The airbag light signals a fault in the safety system, meaning the airbags might not deploy in a collision, increasing injury risks. The tire pressure monitoring light alerts you to low tire pressure—delaying inflation can wear out the tires and raise the risk of a blowout. The temperature warning light indicates engine overheating, requiring you to stop and top up coolant to prevent boiling over. These lights are the car's distress signals, and learning to interpret them can prevent minor issues from turning into major repairs.
