See also:

Driving On Grades
Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don’t shift down, you might have to use your brakes so much that they would get hot and no longer w ...

Navigation
This display is used for the OnStar or Navigation System Turn-by-Turn guidance. See OnStar Overview or the navigation manual, if the vehicle has navigation, for more information. ...

Automatic Transmission Operation
There are several different positions for your gear shift lever. PARK (P): This position locks the rear wheels. It is the best position to use when you start the engine because your vehicle ...