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:
MP3/WMA Format
The Single CD and the Six-Disc
CD Radio will play MP3/WMA files
that were recorded on a CD–R or
CD–RW disc. The HDD Radio can
also play MP3/WMA files recorded
on DVD+/-R discs or stored on a ...
Map Scales
+ / − (Zoom In/Zoom Out): Press the zoom in or out screen buttons or the scale
on the bar to change the level of map detail. The scale appears on the screen once
the zoom in or zoom out scre ...
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 ...