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:
Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire
when tested under controlled conditions on a specified government test course. For
example, a tire graded 150 would w ...
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. ...
SERVICE KEYLESS START
SYSTEM
If the vehicle has the keyless
access system, this message
displays when there is a problem
with this feature. See your dealer. ...