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:
Additional Factors Affecting System Operation
Safety belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See “Safety Belts” ...
Compass
Compass Operation
There is a compass display in the upper right corner of
the mirror.
Compass Calibration
Press and hold to activate the
compass calibration
mode. CAL displays in the compass ...
Battery Power Protection
The battery saver feature is designed to protect the vehicle's battery.
To prevent battery discharge while driving, the following systems are reduced automatically in two stages and then turned off:
...