OnStar

See also:

Power Door Locks
The switches are located on the front doors. (Unlock): Press to unlock the doors. (Lock): Remove the key from the ignition and press to lock the doors. ...

XM Categories
XM channels are organized in categories. Removing or Adding Categories Channels in a category that have been removed can still be accessed by using the SEEK or SEEK buttons, or the TUNE knob. ...

XM NavTraffic (USA and Canada)
Vehicles with the navigation system have an XM NavTraffic receiver. XM NavTraffic is a subscription service provided via XM Satellite Radio. XM NavTraffic provides real-time traffic information fu ...