GM Service Manual Online
For 1990-2009 cars only

Brake Warning Indicators

BRAKE Indicator

The instrument cluster (IPC) illuminates the BRAKE indicator when the following occurs:

    • The body control module (BCM) sends a class 2 message to the IPC indicating that the park brake is applied.
    • The electronic brake control module (EBCM) sends a class 2 message to the IPC indicating that the brake fluid level is low
    • The IPC performs the bulb check.