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:

    Roof Rack System (Wagon)
    WARNING! If something is carried on top of the vehicle that is longer or wider than the roof rack—like paneling, plywood, or a mattress—the wind can catch it while the vehicle is being driv ...

    Call Waiting
    Call waiting must be supported on the Bluetooth phone and enabled by the wireless service carrier to work. Accepting a Call Turn the MENU/SELECT knob to “Answer” and press the MENU/ SELECT knob ...

    Remote Keyless Entry (RKE) System
    On some models, the RKE transmitter is used to lock and unlock the doors from up to 20m (65 ft) away from the vehicle. On other models, it can be used up to 60m (195 ft) away. Key Access ...