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:

    Operating UHP Using Voice Control
    The voice control of the UHP system enables you to operate several functions of the mobile phone using your voice. The UHP system uses voice commands to control the system and dial phone numbers. Af ...

    CD/DVD Player
    The CD/DVD player can play CDs, DVD—As, MP3/WMA CDs, MP3/WMA DVDs, and DVD—Vs. The CD/DVD player will not play 8 cm(3 in) discs. Care of CDs and DVDs Sound quality can be reduced due to disc ...

    STEP ON BRAKE TO RELEASE PARK BRAKE
    For vehicles with the electric parking brake, this message displays if you try to release the park brake system without first pressing the brake pedal. See the electric parking brake informa ...