See also:

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

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 the v ...

2012 Cadillac CTS Review
The 2012 Cadillac CTS sedan offers shoppers an attractive blend of design, luxury and performance. Now in its fifth model year, the CTS is the luxury sedan that began Cadillac's design-led trans ...