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:
DIC Buttons
The buttons are the trip/fuel, vehicle information, customization, and set/ reset buttons. The button functions are detailed in the following pages.
(Trip/Fuel): Press this button to display the o ...
Operation
Radio with CD, Radio with CD/USB Similar
Radio with CD, DVD, and USB Port
The vehicle may have one of these radios as its audio system. ...
Exterior Lamp Controls
The exterior lamp control is on the turn signal/lane change lever.
(Exterior Lamp Control): Operates
the exterior lamps. Turn to one of the following positions:
(Off): Briefly turn to this pos ...





