See also:

Shifting out of Park
This vehicle is equipped with an electronic shift lock release system. The shift lock release is designed to: - Prevent ignition key removal unless the shift lever is in P (Park) with the sh ...

OnStar® Destination Download (US and Canada)
OnStar Destination Download (if equipped) is a service available for OnStar subscribers that makes operating your navigation system much simpler. It allows subscribers to request and receive navig ...

If the System Needs Service
If the navigation system needs service and the steps listed here have been followed but there are still problems, see your dealer for assistance. ...