See also:

Automatic Dimming Rearview Mirror
The vehicle may have an automatic dimming inside rearview mirror with OnStar® and/or a compass display. Automatic dimming reduces the glare from the headlamps of the vehicle behind you. The dim ...

Entering the Personalization Menus
1. Press CONFIG to access the Configuration Settings menu. 2. Turn the Menu knob to highlight Vehicle Settings. 3. Press SELECT to select the Vehicle Settings menu. The following list of menu ...

Setting the 12/24 Hour Format
1. Press the CONFIG button and select Time Settings, or press . 2. Highlight 12/24 Hour Format. 3. Press SELECT to select the 12 hour or 24 hour display format. ...