See also:

Armrest Storage
For vehicles with a rear seat armrest, pull the rear seat armrest forward to access cupholders with removable liners. For vehicles with a rear storage area, pull the lever to access. ...

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. ...

Address Entry
Address Entry: Enter either a city or street to use the address entry destination method. To enter a destination by inputting the city name first: 1. Press DEST. 2. Select (Address Entry). 3. ...