See also:

OnStar®
OnStar® uses several innovative technologies and live advisors to provide a wide range of safety, security, navigation, diagnostics, and calling services. ...

Air Vents
Use the louvers located on the air vents to change the direction of the airflow. To open a vent, move the thumbwheel to | . To close the vent, move the thumbwheel to . Operation Tips ► Keep a ...

Rear Window Defogger
(Rear Window Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off automatically after about 10 minutes. If turned on again it runs for about five ...