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
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check
the transmission fluid level.
A transmission fluid leak is the
only reason for fluid loss. If a leak
occurs, take the v ...
Voice Recognition
The navigation system's voice recognition allows for hands-free operation of
the navigation system, audio system, and OnStar (if equipped) features.
Voice recognition can be used when the ignit ...
Trailer Sway Control (TSC)
Non-hybrid vehicles with StabiliTrak have a Trailer Sway Control (TSC) feature.
If the vehicle is towing a trailer and the system detects that the trailer is swaying,
the vehicle brakes are applie ...