Brake Warning Indicator

The instrument panel cluster (IPC) illuminates the brake warning indicator when the following occurs:

• The body control module (BCM) detects that the park brake is engaged. The IPC receives a class 2 message from the BCM requesting illumination.
• The EBCM detects a low brake fluid condition and sends a class 2 message to the IPC.
• The IPC performs the bulb check.
• An ABS-disabling malfunction also disables dynamic rear proportioning (DRP).