Brake Warning Indicator

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel cluster (IPC) illuminates the brake warning indicator when any of the following occurs.

The IPC detects that the park brake is engaged.
The Body control module (BCM) detects a low brake fluid level condition, and sends a GMLAN message to the EBCM and sets a DTC. The BCM will request illumination of the brake warning indicator.
The IPC performs the bulb check.
An ABS disabling malfunction may also disables dynamic rear proportioning (DRP).