Infotainment System

Multi-Band Antenna

~1min read

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 antenna clear of obstructions for clear reception.

If the vehicle has a sunroof and it is open, the performance of OnStar, XM, and GPS can be affected.

Test yourself

A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.