See also:

Map Data Updates
The navigation map database is stored on a compact flash card. It is usable only in this type of navigation system, and will not function in other electronic devices. The map in the vehicle was ins ...

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 ...

Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has ch ...