What does the TC yellow light on the car dashboard mean?
2 Answers
The TC yellow light on the dashboard is the traction control system fault warning light. The function of the traction control system is to ensure that the car obtains optimal traction under various driving conditions. If the owner accidentally turns off the traction control switch, the TC indicator light will illuminate. If the issue is not caused by accidental pressing, it indicates a fault in the traction control system, and the vehicle should be taken to a repair shop for inspection promptly. Possible causes of traction control system failure include: solenoid valve malfunction, dirty engine oil clogging the solenoid valve filter, wear of the actuator gear and impeller leading to oil pressure leakage and triggering the alarm, or dirty throttle with an opening reaching 20%, causing the engine computer to misjudge a TC fault.
Oh, the yellow TC light on the dashboard is on? That's the warning light for the Traction Control system. I've been driving for twenty years, and the TC system is especially useful on slippery roads or curves, helping to prevent wheel slippage. The light usually indicates a fault or activation state—it could be a dirty wheel speed sensor, wiring issues, or a blown fuse. I remember once after driving on a mountain road in the rain, the light kept flashing, and the car almost skidded, giving me quite a scare. If the cause is sensor dust buildup or a short circuit, not fixing it can easily lead to loss of control, especially on highways. I suggest you slow down and drive steadily, avoid sudden braking, and get to a professional shop to check the fault codes as soon as possible. Regular maintenance can prevent this issue, like cleaning the wheel speed sensor area—don’t ignore small warning lights, safety comes first!
