GM Service Manual Online
For 1990-2009 cars only

The brake warning system is comprised of the following components:

    • Body Control Module (MALL).
    • Instrument Cluster.
    • Remote Indicator Bank (Oldsmobile).
    • BRAKE (RED) indicator (Buick).
    • PARK (RED) indicator (Oldsmobile).
    • BRAKE FLUID (RED) indicator (Oldsmobile).
    • Park Brake Switch.
    • Brake Fluid Level Switch.
    • Ignition Switch.

These components are used to inform the driver that either the park brake is applied or the brake fluid in the master cylinder is low.