See also:

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Automatic Transmission Shift Lock Control Function Check
WARNING When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room aro ...

XM Categories (Radio with CD)
XM stations are organized in categories. Removing or Adding Categories 1. Press the CONFIG button. Turn the Menu knob until Radio displays. Press SELECT or press Radio to display the radio ...