See also:

Multi-Band Antenna
The antenna located on the roof of the vehicle is used for the OnStar, XM Satellite Radio Service System, and GPS (Global Positioning System), if the vehicle has these features. Keep the ant ...

Mobile Apps
Mobile apps are available for download through iTunes® to then access the iPhone® App Store and Google™ Marketplace for Android™. Search for the apps to download. The apps are free of charge; howeve ...

Verify Minutes and Expiration
Push and say “minutes” then “verify” to check how many minutes remain and their expiration date. ...