GM Service Manual Online
For 1990-2009 cars only

This brake system uses a BRAKE warning lamp located in the instrument cluster. When the ignition switch is in the START position, the BRAKE warning lamp should glow and then go off when the ignition switch returns to the RUN position.

The following conditions will activate the BRAKE lamp:

    • Parking brake applied -- The light should be on whenever the parking brake is applied and the ignition switch is ON.
    • Low fluid level -- A low fluid level in the master cylinder will turn the BRAKE lamp ON.
    • As a test of the lamp circuit -- Vehicles with antilock brakes will illuminate the BRAKE lamp for 3 seconds when the ignition starter is turned ON.