OnStar Services

See also:

Navigation System
If the vehicle has a navigation system, there is a separate navigation system manual that includes information on the radio, audio players, and navigation system. The navigation system prov ...

STEP ON BRAKE TO RELEASE PARK BRAKE
For vehicles with the electric parking brake, this message displays if you try to release the park brake system without first pressing the brake pedal. See the electric parking brake informa ...

Automatic Level Control
The automatic level control rear suspension comes as a part of the Road Sensing Suspension. See Road Sensing Suspension  . This type of level control is fully automatic and will provide a bett ...