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.

    See also:

    Radio Messages for XM™ Only
    See XM Radio Messages later in this section for further detail. ...

    Return to Factory Settings
    Select Return to Factory Settings to return all of the vehicle personalization to the default settings. Turn the Menu knob to select Yes or No. Press SELECT to confirm and go back to the l ...

    Erasing Speed Memory
    The cruise control set speed memory is erased by turning off the cruise control or the ignition. ...