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:
Express Down Windows
Windows that have the express&-down feature allow the windows to be lowered without
holding the switch. Press the window switch fully and release it to activate the
express&-down feature. ...
Overview
The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck
capability combined with greater off-road versatility. It is highlighted by a
bold exterior design, enhanced all-terrain ...
Initial Drive Information
This section provides a brief overview about some of the important features that
may or may not be on your specific vehicle. For more detailed information, refer
to each of the features which can ...