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:

    Doing Your Own Service Work
    WARNING It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner manual procedures and consult the service manual f ...

    Reactivation for Subsequent Owners
    Push and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle. The Advisor will update vehicle records and will explain the OnStar service offers and opt ...

    Starting the Gasoline Engine
    Place the transmission in the proper gear by moving the shift lever to P (Park) or N(Neutral). To restart the engine when the vehicle is already moving, use N (Neutral). Notice: Do not try to shi ...