OnStar Services

See also:

Anti-theft Alarm System
This vehicle has an anti-theft alarm system. ...

Entering the Feature Settings Menu
1. Turn the ignition on and place the vehicle in P (Park). To avoid excessive drain on the battery, it is recommended that the headlamps are turned off. 2. Press the customization button to enter th ...

Setting the Clock
To set the time and date: 1. Turn the ignition key to ACC/ ACCESSORY or ON/RUN, then press , to turn the radio on. 2. Press to display HR, MIN, MM, DD, and YYYY (hour, minute, month, day, and yea ...