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:
Automatic Transmission Shift Lock Control Function Check
WARNING
When you are doing this inspection, the vehicle could move suddenly. If the
vehicle moves, you or others could be injured.
1. Before starting this check, be sure there is enough room aro ...
Engine Heater
The engine coolant heater, if available, can help in cold weather conditions
at or below −18°C (0°F) for easier starting and better fuel economy
during engine warm-up.
Plug in the coolant h ...
Compass
The vehicle may have a compass display in the Driver Information Center
(DIC). See Compass. ...