See also:

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Language — English/Metric
To change the language of the navigation screens or to change the navigation screens from English or metric, see Driver Information Center (DIC)   for more information. ...

Roof Rack System
WARNING If something is carried on top of the vehicle that is longer or wider than the roof rack—like paneling, plywood, or a mattress—the wind can catch it while the vehicle is being driven. The ...