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:
Radio Reception
You may experience frequency interference and
static during normal radio reception if items
such as cellphone chargers, vehicle convenience
accessories, and external electronic devices
are plugged ...
Interior Mirrors
Automatic Dimming Rearview Mirror
The vehicle has an automatic dimming inside rearview mirror.
Automatic dimming reduces the glare from the headlamps of the vehicle behind you.
Vehicles with OnStar ...
RELEASE PARK BRAKE
This message is displayed if the
electric parking brake is on while the
vehicle is in motion. Release it
before you attempt to drive. See
Parking Brake for
more information. ...