What does TC mean on the car dashboard?

1 Answers
Whitney
07/30/25 9:15am
TC on the car dashboard stands for the vehicle's Traction Control System. When the system is active, the TC light on the dashboard will illuminate. Most vehicle models are equipped with this traction control system. When the system detects wheel slippage, it applies braking to the slipping wheel, reduces throttle opening, downshifts, etc. Common causes for TC light illumination include: 1. Solenoid valve malfunction. 2. Dirty engine oil clogging the solenoid valve filter. 3. Wear in actuator gears or impellers causing oil pressure leaks that trigger warnings. 4. Throttle body contamination reaching 20% opening, causing the engine control unit to falsely detect TC faults. It's recommended to check if the throttle body needs cleaning or if the issue stems from intake/exhaust camshaft solenoid valves.
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