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. ...

2011 Cadillac CTS-V Sport Wagon Review
There’s no logical reason for the Cadillac CTS-V Sport Wagon to exist. It’s a 556-horsepower, supercharged eight-cylinder rear-wheel-drive station wagon with a six-speed manual transmiss ...

High/Low—Beam Headlamps (Uplevel)
The high/low beam headlamps on the uplevel are High Intensity Discharge (HID) and should be replaced at the dealer. ...