Brake Warning

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The chime producer activates the brake audible warning as requested by the instrument panel cluster (IPC). The IPC sends a serial data message to the chime producer indicating the chime frequency and duration. The brake warning sounds and the BRAKE indicator illuminates when the following occurs:

The ignition is ON.
The vehicle speed is greater than 8 km/h (4.9 mph). The IPC receives a serial data message from the engine control module (ECM) indicating the vehicle speed.
The IPC determines that the park brake is engaged.
The brake fluid is low.
The Traction Control System (TCS) and the Vehicle Stability Enhancement System (VSES) have failed.