Vehicle and Power Issues :: OnStar Additional Information :: OnStar :: GMC Sierra Owners Manuals :: GMC Sierra | GMCia.com

Vehicle and Power Issues

GMC Sierra / GMC Sierra Owners Manuals / OnStar / OnStar Additional Information / Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

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Throttle and Brake Pedal Adjustment
On vehicles with this feature, you can change the position of the throttle and brake pedals. The control used to adjust the pedals is located on the instrument panel below the climate control sys ...

Using the USB Port
For vehicles with a USB port, the connector is located in the instrument panel storage area. See Instrument Panel Storage on page 4‑1 for more information. Radios with a USB port can control a ...

Air Vents
Use the air outlets located in the center and on the side of the instrument panel to direct the airflow. Use the thumbwheels near the air outlets to open or close off the airflow. Operation Tips • ...