If the vehicle is equipped with OnStar and has an active subscription, additional data may be collected through the OnStar system. This includes information about the vehicle's operation; collisions involving the vehicle; the use of the vehicle and its features; and, in certain situations, the location and approximate GPS speed of the vehicle. Refer to the OnStar Terms and Conditions and Privacy Statement on the OnStar website.
See OnStar Additional Information.
Brake Warning System Description and Operation
Brake Warning IndicatorHydraulic Brakes Block DiagramB80Park Brake SwitchB20Brake Fluid Level SwitchK9Body Control ModuleK17Electronic Brake Control ModuleP16Instrument ClusterHard-WiredSerial DataB80-Park Brake SwitchB20-Brake Fluid Level SwitchK9-Body Control ModuleK17-Electronic Brake Control Mod ...