See also:

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. ...

Electrical System Overload
The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the ci ...

Steering Wheel Controls
Use these controls, if equipped, to make audio adjustments at the steering wheel. or : Press to select the next favorite radio station or next CD, DVD, if equipped, or MP3 track. Press to ...