GMC Sierra Owners Manuals
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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. ...
Off-Road Driving
All-wheel-drive vehicles can be used for off-road driving. Vehicles without all-wheel
drive and vehicles not equipped with All Terrain (AT) or On-Off Road (OOR) tires
must not be driven off-road e ...
Electronic Transfer Case
The transfer case knob is located next to the steering column.
Use the dial to shift into and out of four-wheel drive. ...





