See also:

Using the Navigation System
This section presents basic information needed to operate the navigation system. Use the buttons located on the navigation system along with the available touch-sensitive screen buttons on the navi ...

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. ...

ELECTRONIC KEY NOT DETECTED RESTART ALLOWED
If the vehicle has the keyless access system, this message displays when the keyless access transmitter is not detected inside the vehicle while you are trying to turn the ignition off. The ...