Urgency: Low
Traction Control Light (TCS)
This is usually informational. Address it at your convenience.
What the Traction Control Light (TCS) Means
The traction control (TCS) light on a your car flashing means the system is actively working to keep your wheels from spinning on a slippery surface — that is normal. If it stays on steadily, the system has switched off or has a fault.
Common Causes
- Traction control switched off by button
- Faulty wheel speed sensor
- Steering angle or yaw sensor fault
- ABS fault disabling TCS
- Bad road/tire conditions (normal flashing)
How to Fix It
- Check whether the TCS button was pressed off
- Restart the vehicle to clear a temporary flag
- If paired with ABS, diagnose the wheel speed sensors
- Scan for chassis codes
- Repair the shared sensor to restore both systems
Related DTC Codes
| Code | Meaning |
|---|---|
C0035 | Left Front Wheel Speed Sensor Circuit The ABS module has lost a valid signal from the left front wheel speed sensor. |