See also:

How OnStar Service Works
Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn-by-Turn Navigation, and Hands-Free ...

Touch-Sensitive Screen Buttons
Touch-sensitive screen buttons are located on the screen. When a screen button has been selected, a beep sounds. Screen buttons are highlighted when a feature is available. ...

Antilock Brake System (ABS) Warning Light
The Antilock Brake System (ABS), this light comes on briefly when the engine is started. If the light does not come on, have it fixed so it will be ready to warn if there is a problem. If ...