Cellular and GPS Antennas :: OnStar Additional Information :: OnStar :: GMC Sierra Owners Manuals :: GMC Sierra | GMCia.com

Cellular and GPS Antennas

GMC Sierra / GMC Sierra Owners Manuals / OnStar / OnStar Additional Information / 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.

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Compass Zone Setting
This display allows for setting the compass zone. See Compass on page 5‑6 for more information. ...

Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl ...

Securing an Add-On Child Restraint in the Vehicle
WARNING A child can be seriously injured or killed in a crash if the child restraint is not properly secured in the vehicle. Secure the child restraint properly in the vehicle using the vehicle safet ...