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:
Care of CDs and DVDs
If playing a CD-R, the sound quality can be reduced due to CD-R or CD-RW quality, the method of recording, the quality of the music that has been recorded, and the way the CD-R or CD-RW has been handl ...
Tailgate
WARNING
It is extremely dangerous to ride on the tailgate, even when the vehicle is operated at low speeds.
People riding on the tailgate can easily lose their balance and fall in response to vehicl ...
Driver Information Center (DIC) (With DIC Buttons)
If your vehicle has DIC buttons, the information below explains the operation of this system.
The DIC displays information about your vehicle. It also displays warning messages if a system problem is ...





