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), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicate with GMC by dialing:
1-800-462-8583. TTY users in Canada can dial 1-800-263-3830.
See also:
Heated and Ventilated Seats
Heated and Cooled Seat Buttons Shown, Heated Seat Buttons Similar
If available, the buttons are on the front doors.
: If available, press to cool the seat.
: Press to heat the seatback only ...
Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has changed, OnSta ...
Manual Liftgate
To unlock the liftgate, press the power door lock switch or press on the Remote Keyless Entry (RKE) transmitter twice.
See Remote Keyless Entry (RKE) System Operation on page 2‑3.
To open the ...





