Database Coverage Explanations
Coverage area depends upon the map detail available. Some areas have greater map detail than others. The navigation system works only as well as the information provided on the stored map data. See Map Data Updates on how to obtain updated map information.
See also:
Ending a Call
Press to end a call. ...
Other Navigation Services Available from OnStar
OnStar eNav: Allows subscribers to send destinations from Google Maps and MapQuest.com
to their Turn-by-Turn Navigation or screen-based navigation system. When ready,
the directions will be downlo ...
Ultrasonic Parking Assist
If available, the Ultrasonic Rear Parking Assist (URPA) system uses sensors on
the rear bumper to assist with parking and avoiding objects while in R (Reverse).
WARNING
The URPA system does n ...