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:

    Remote Vehicle Start
    For vehicles with this feature, the engine can be started from outside of the vehicle. ...

    Engine Cooling System Messages
    Notice: If you drive the vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soo ...

    Ending Cruise Control
    There are three ways to end cruise control: To disengage cruise control, step lightly on the brake pedal. Press on the steering wheel. To turn off the cruise control, press on the steering ...