See also:

Front Seats
The vehicle's front seats have adjustable head restraints in the outboard seating positions. The height of the head restraint can be adjusted. To raise or lower the head restraint, press the ...

Language — English/Metric
To change the language of the navigation screens or to change the navigation screens from English or metric, see Driver Information Center (DIC)   for more 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. ...