See also:

Home Page Features
Various functions are disabled when the vehicle is moving. Press the Now Playing screen button to display the active source page. The sources available are AM, FM, XM (if equipped), CD, USB/iPod, a ...

Features
The Denali comes with a long list of standard equipment to please passengers: Heated leather front seats, a Bose stereo with a six-disc CD changer, XM Satellite Radio and a three-zone air-conditio ...

XM™ Radio Messages
XL (Explicit Language Channels): These channels, or any others, can be blocked at a customer's request, by calling 1-800-929-2100 in the U.S. and 1-877-438-9677 in Canada. XM Updating: The encryption ...