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:

    AM
    The range for most AM stations is greater than for FM, especially at night. The longer range can cause station frequencies to interfere with each other. For better radio reception, most AM radio stati ...

    Windows
    Press the switch to lower the window. Pull the switch up to raise it. For more information, see Power Windows on page 2‑21. ...

    Tips and Troubleshooting Chart
    Problem Recommended Action There is no power. The ignition might not be turned to ON/RUN or ACC/ ACCESSORY. The picture does not fill the screen. There are black bor ...