See also:

System Settings
CONFIG: Press to adjust the number of favorites pages, auto volume, XM (if equipped), and HDD (if available) settings. The FAV, AUTO VOL, XM (if equipped), and HDD (if available) tabs displa ...

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 ...

Using Voice Recognition
To use voice recognition, press the button located on the steering wheel. Use the commands below for the various voice features. For additional information, say "Help" while you are in a ...