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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Braking
Braking action involves perception time and reaction time. Deciding to push the brake pedal is perception time. Actually doing it is reaction time. Average driver reaction time is about three-fourths ...

Tires
Tires need to be properly inflated, rotated, and balanced. Maintaining the tires can save money, fuel, and can reduce the risk of tire failure. • Signs that the tires need to be replaced include th ...

Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to 10 minutes after the engine is turned off: • Audio System • Power Windows • OnStar System (if equipped) • Sunroof (if equipped) The ...