See also:

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 system ...

2011 Cadillac CTS Review
Since its 2008 redesign, the Cadillac CTS has been a car you could point to as evidence that GM can build world-class cars. It's classy, through and through, and proves that when the automaker put ...

XM™ Satellite Radio Service
XM Satellite Radio Service gives digital radio reception from coast to coast in the 48 contiguous United States, and in Canada. Just as with FM, tall buildings or hills can interfere with sa ...