What does the TC light on a car mean?

1 Answers
EvangelineDella
07/25/25 6:55am
The TC light on a car can appear in two situations: the driver accidentally turns off the traction control switch near the gear shift, or there is a malfunction in the traction control system. The possible causes for the TC light to illuminate include: 1. Faulty solenoid valve. 2. Dirty engine oil clogging the solenoid valve filter. 3. Wear in the actuator gear or impeller causing oil pressure leakage, triggering the warning. 4. Dirty throttle body with an opening reaching 20%, leading the engine control unit to mistakenly detect a TC fault. Note: If the TC light comes on, it is recommended that the owner visit a repair shop as soon as possible for inspection. Since there are many potential causes for the TC light to illuminate, it is best left to professionals to handle rather than attempting to fix it without expertise.
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