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.

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    New for 2011
    The Sierra Hybrid gets GM's OnStar 9.0 telematics system that GM says provides better voice recognition. GM also said they have worked to cut down on the amount of wind noise occupants hear. ...

    Rear Climate Control System (Rear Climate with Rear Seat Audio)
    A. Fan Control B. Air Delivery Mode Control C. Temperature Control For vehicles with the rear climate control system, the controls are located on the rear of the center console. Press the REAR b ...

    Programming Universal Home Remote — Fixed Code
    For questions or help programming the Universal Home Remote System, call 1-866-572-2728 or go to www.learcar2u.com. Most garage door openers sold before 1996 are Fixed Code units. Programming a gara ...