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:
Portable Audio Devices
Some vehicles have a 3.5 mm (1/8 in) auxiliary input and a USB port located in
the center console. External devices such as iPods®, laptop computers, MP3 players,
CD changers, and USB storage dev ...
Sun Visors
Pull the sun visor down or unhook it and move it to the side to reduce glare.
Visor Vanity Mirror
Lift the cover to use the mirror and turn the lamps on. ...
Other Navigation Services Available from OnStar
OnStar eNav: Allows subscribers to send destinations from Google Maps™ and MapQuest.com
to their Turn-by-Turn Navigation or screen-based navigation system. When ready,
the directions will be dow ...