GM Service Manual Online
For 1990-2009 cars only

Brake System Indicators and Driver Information Center Messages

Brake Warning Indicator

The instrument cluster turns the brake warning indicator ON when the following occurs:

    • The instrument cluster performs the bulb check. The brake warning indicator illuminates for 5 s.
    • The electronic brake control module (EBCM) detects a faulty pump motor, solenoid valves, an internal hardware failure or a too high or too low battery voltage and sends a serial data message to the instrument cluster requesting illumination.
    • The body control module (BCM) detects that the parking brake is engaged. The instrument cluster receives a serial data message from the BCM requesting illumination.

BRAKE FLUID LOW Message

When the EBCM detects a too low brake fluid level it sets DTC C0267 and sends a serial data message to the instrument cluster, which will display the following message:

BRAKE FLUID LOW