See also:

Ending a Call
Turn or press the MENU/SELECT knob and select Hang Up. ...

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 ...

Returning the Seat to the Sitting Position
To return the seat to the sitting position from the tumbled position: 1. Pull the seat down until it latches to the floor. The seatback cannot be raised if the seat is not latched to the floor. ...