Brake Warning Indicator

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

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

The instrument cluster performs the bulb check.
The electronic brake control module detects a fault and sends a serial data message to the instrument cluster requesting illumination.
The body control module detects that the park brake is engaged. The body control module sends a serial data message to the instrument cluster requesting illumination.