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.

    See also:

    Heated Mirrors
    (Rear Window Defogger): Press to heat the mirrors. See Dual Automatic Climate Control System. ...

    Information Displays
    Driver Information Center (DIC) The DIC displays information about the vehicle. It also displays warning messages if a system problem is detected. See Vehicle Messages for more information. All m ...

    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 c ...