See also:

Electronic Range Select (ERS) Mode
ERS or manual mode allows for the selection of the range of gear positions. Use this mode when driving down hill or towing a trailer to limit the top gear and vehicle speed. To use this feature: ...

DIC Buttons
MENU: Press this button to get to the Trip/Fuel Menu and the Vehicle Information Menu. : Use these buttons to scroll through the items in each menu. A small marker will move along the page as ...

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. ...