See also:

Traction Control System (TCS)/StabiliTrak® Light
The StabiliTrak or Traction Control System (TCS) indicator/warning light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by your dealer ...

OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview. ...

EPB Apply
The EPB can be applied any time the vehicle is stopped. The EPB is applied by momentarily lifting up on the EPB switch. Once fully applied, the BRAKE light will be on, and the DIC message PA ...