See also:

Vehicle Personalization
The audio system controls are used to access the personalization menus for customizing vehicle features. CONFIG (Configuration): Press to access the Configuration Settings menu. TUNE/MENU: Press t ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Gasoline Specifications
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadie ...