See also:

Customer Assistance Offices (U.S. and Canada)
Cadillac encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail Cadillac, the letter should be addressed to: United States Cadillac Cu ...

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. ...

Storing an XM Channel as a Favorite
Channels from all bands can be stored in any order in the favorite pages. Up to six channels can be stored in each favorite page and the number of available favorite pages can be set. Storing a ...