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:

    Flash-to-Pass
    This feature allows the high-beam headlamps to be used to signal the driver in front of you that you want to pass. Pull and hold the turn signal/lane change lever toward you to use this fea ...

    SERVICE SIDE BLIND ZONE ALERT SYSTEM
    If this message appears, both SBZA displays will remain on indicating there is a problem with the SBZA system. If these displays remain on after continued driving, the system needs service. ...

    Keys
    WARNING! Leaving children in a vehicle with the ignition key is dangerous for many reasons. Children or others could be badly injured or even killed. They could operate the power windows or ...