Navigation
OnStar navigation requires the Directions and Connections service plan.
Push 
to receive directions or
have them sent to the vehicle
navigation screen. Destinations
can also be forwarded to the
vehicle from Google Maps™ or
MapQuest.com. The OnStar
mapping database is continuously
updated. Visit www.onstar.com for
coverage maps.
See also:
Shuttle Service
Shuttle service is the preferred
means of offering Courtesy
Transportation. Dealers may provide
shuttle service to get you to your
destination with minimal interruption
of your daily schedul ...
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. Se ...
How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). A
single tone sounds to indicate the system is working.
URPA operates only at speeds less than 8 km/h (5 mph).
An obstac ...