Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit/System Description
The traction control indicator is controlled by the instrument panel cluster (IPC) via serial data messages from the instrument panel module (IPM) or electronic brake control module (EBCM). The traction control indicator will be illuminated when the traction control switch is applied and the traction control system (TCS) will be disabled for the remainder of the ignition cycle or until the system is enabled by the switch.
The EBCM sends a serial data message to the instrument panel cluster to illuminate the traction control indicator when the EBCM has disabled the traction control system due to a DTC. The traction control indicator will also turn ON during the instrument cluster bulb check for 3 seconds and then turn OFF.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.