See also:

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. ...

Manual Locks
From the outside, unlock the door using either the key or the RKE transmitter. From the inside, use the power door lock switches or manual lock knobs located at the top of the door panel near t ...

Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. Adjustments to wheel alignment and tire ba ...