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 Headlamp System
When it is dark enough outside, the automatic headlamp system turns on the headlamps
at the normal brightness, along with the taillamps, sidemarker, parking lamps, and
the instrument panel lights. ...
Auxiliary Devices (Radio with CD/DVD and MEM)
The optional AUX input allows portable devices to be connected using the
3.5mm (1/8 in) input jack or the USB port.
Portable devices are controlled by using the menu system described in
Operation ...
Entering the Feature Settings Menu
1. Turn the ignition on.
To avoid excessive drain on the
battery, it is recommended that
the headlamps are turned off.
2. Press the customization
button to enter the feature
settings menu. ...