what does it mean if my Volkswagen Tiguan's traction control light is on?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the battery to prevent any electrical shorts.

2. Inspect and Clean Wheel Speed Sensors

• Remove the wheel corresponding to the sensor being inspected.
• Locate the wheel speed sensor and disconnect the electrical connector.
• Clean the sensor and its mounting area with brake cleaner.
• Reconnect the sensor and reinstall the wheel.

3. Check Brake Fluid Level

• Locate the brake fluid reservoir under the hood.
• Inspect the fluid level; it should be between the minimum and maximum marks.
• If low, add the appropriate brake fluid (DOT 4) and check for leaks.

4. Test Traction Control Switch

• Locate the traction control switch, usually found on the dashboard.
• Press the switch to toggle the traction control system on and off.
• Ensure it functions correctly and the light responds as expected.

5. Clear Codes and Test Drive

• Reconnect the battery and use the OBD-II scanner to clear any fault codes.
• Conduct a test drive to check if the traction control light remains off and the system functions normally.