See also:

Automatic Dimming Rearview Mirror
On vehicles with an automatic dimming inside rearview mirror the automatic dimming reduces the glare from the headlamps of the vehicle behind you. Vehicles with OnStar have three control bu ...

Brake Adjustment
Every time the brakes are applied, with or without the vehicle moving, the brakes adjust for wear. ...

OnStar® Steering Wheel Controls
Your vehicle may have a Talk/Mute button that can be used to interact with OnStar® Hands-Free Calling. On some vehicles, you may have to hold the button for a few seconds and give the command †...