See also:

Rear Display
Press the Rear Display(s) screen button to allow the choice of sources for rear display between front disc, rear aux, or usb, if connected. ...

Special Application Services
. Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi. - Have underbody flushing service performed once a year. ...

Store a Name Tag for Speed Dialing
1. Push . System responds: “OnStar ready.”. 2. Say “Store.” System responds: “Please say the number you would like to store.”. 3. Say the entire number without pausing. System responds: “Plea ...