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 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.
See also:
Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech-impaired and
who use Text Telephones (TTYs), Cadillac has TTY equipment available at its
Customer Assistance Center. Any TTY user can com ...
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate
the next engine oil change. Always reset the engine oil life to 100% after every
oil change. It will not reset ...
U-Rail
For vehicles with a u-rail system, the fence can be moved to different
positions on the u-rail track to secure cargo.
Push both adapter buttons to move the adapters (B) on the straight par ...






