See also:

Hill Start Assist (HSA)
This vehicle has a Hill Start Assist (HSA) feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward o ...

Your Responsibility
Increase the volume of the radio if the OnStar advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Press and request a vehicle ...

Storing an XM Channel as a Favorite
Channels from all bands can be stored in any order in the favorite pages. Up to six channels can be stored in each favorite page and the number of available favorite pages can be set. Storing a Ch ...