See also:

Global Positioning System (GPS)
• Obstruction of the GPS can occur in a large city with tall buildings; in parking garages; around airports; in tunnels, underpasses, or parking garages; or in an area with very dense tr ...

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar sy ...

Saving MEM Tracks as Favorites
Favorites can be saved by pressing and holding one of the 1 to 6 buttons. Favorites can be stored according to the following list: Playlist: Adds the currently playing track to the playlist s ...