What does a triangle exclamation mark in a car mean?
2 Answers
A triangle exclamation mark appearing in a car is a general warning light, which typically indicates a brake system malfunction or abnormal tire pressure. Common causes for this warning light to illuminate include overheating of the dry dual-clutch transmission clutch, intervention or failure of the fuel cutoff system, parking sensor malfunction, external light failure, engine oil pressure sensor malfunction, traction control system warning or failure, among others. Once the warning light comes on, each potential issue should be checked one by one. The vehicle's onboard computer has a self-diagnostic function. When the car is powered on, the indicator lights on the dashboard will illuminate as the car enters the self-check state. After the self-check is completed, the indicator lights should turn off. If they remain lit, it indicates a fault in the vehicle that requires prompt repair.
When a triangle with an exclamation mark appears on the car dashboard, it indicates that there is a warning message requiring attention. This can be caused by various reasons: insufficient tire pressure is the most common, especially during temperature changes, as pressure drops can easily trigger the warning; minor engine system faults or electronic control unit issues may also cause this light to illuminate; abnormalities in the braking system, such as low brake fluid levels or malfunctions; problems with the vehicle stability control system or ABS can also display this symbol. Upon seeing it, I would first safely pull over to check if other dashboard lights are on, such as the tire pressure light or engine light. If it's a tire pressure warning, I would promptly check the tire pressure and inflate them at a gas station if necessary; for other cases, a professional repair shop with diagnostic tools would be required. Never ignore it, as it relates to driving safety—continuing to drive may worsen the damage or cause accidents. Last week, I encountered a tire pressure issue and timely handling avoided trouble.
