See also:

Door Locks
To lock or unlock a door manually: • From the inside use the door lock knob on the window sill. • From the outside turn the key toward the front or rear of the vehicle, or press the or but ...

Rear Window Defogger
For vehicles with a rear window defogger, a warming grid is used to remove fog from the rear window. (Rear): Press to turn the rear window defogger on or off. An indicator light on the button comes ...

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 communicat ...