Brake Warning Indicator

The instrument panel cluster illuminates the brake warning indicator when the following occurs.

• The electronic brake control module (EBCM) detects that the park brake is engaged. The instrument panel cluster receives a serial data message from the BCM requesting illumination. The brake warning indicator flashes at a rate of approximately twice per second when the park brake is engaged.
• The electronic brake control module (EBCM) detects a low brake fluid condition or a base brake pressure differential and sends a serial data message to the instrument panel cluster requesting illumination.
• The instrument panel cluster performs the bulb check.
• The EBCM detects an antilock brake system (ABS)-disabling malfunction which also disables electronic brake distribution and sends a serial data message to the instrument panel cluster requesting illumination.