See also:

XM Categories
XM channels are organized in categories. Removing or Adding Categories Channels in a category that have been removed can still be accessed by using the SEEK or SEEK buttons, or the TUNE knob. ...

Navigation
OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to ...

Vehicles With a Navigation System
An image appears on the navigation screen with the message “Check Surroundings for Safety” when the vehicle is shifted into R (Reverse). The navigation screen goes to the previous screen after app ...