TRAC Off

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel cluster illuminates the TRAC OFF indicator when the following occurs:

The EBCM inhibits the traction control system due to a malfunction in the traction control system. The instrument panel cluster receives a serial data message from the EBCM requesting illumination.
The body control module (BCM) detects that the traction control switch has been pressed (signal circuit is low). The BCM sends a serial data message to the EBCM in order to disable traction control. The instrument panel cluster receives a serial data message from the BCM requesting illumination.