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. ...

Thigh Support Adjustment
If available, adjust the manual leg extension by reaching under it, in the pocketed area. Press the button and pull or push to lengthen or shorten it. Release the button to lock it in plac ...

Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase the vehicle speed. When you take your foot off the pedal, the vehicle will slow down to the previous set cruise speed. ...