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 ...

Pairing
A Bluetooth-enabled cell phone must be paired to the in-vehicle Bluetooth system and then connected to the vehicle before it can be used. See the cell phone manufacturer's user guide for B ...

Turning the System On or Off
VOL/ (Volume/Power): Press to turn the system on and off ...