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:

    MAXIMUM # ELECTRONIC KEYS LEARNED
    If the vehicle has the keyless access system, this message displays when the maximum number of transmitters have been learned. See the Keyless Access information for Remote Keyless Entry ( ...

    Traffic Options (US and Canada)
    Read the following Options descriptions to understand how the XM NavTraffic™ operates. ...

    Removing the Crossrails
    1. Move both levers of the crossrail into the upper forward position. 2. Slide the crossrail into the cut-out area. 3. Remove the crossrail from the vehicle. 4. Repeat for the other crossrail ...