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What does the TC yellow light on the car dashboard mean?

1 Answers

StBrantley

07/29/25 8:09pm

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.

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