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:
Windows
WARNING
Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous.
They can be overcome by the extreme heat and suffer permanent injuries or even death from heat s ...
Rear Climate Control System (Rear Climate Control Only)
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
For vehicles with the rear climate control system, the controls are located on the rear of the center console. The system can al ...
Power Windows
WARNING
Leaving children in a vehicle with the keys is dangerous for many reasons. Children or others could be badly injured or even killed.
They could operate the power windows or other controls or ...





