See also:

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 ...

Timer
Press the trip/fuel button until TIMER displays. This display can be used as a timer. To start the timer, press the set/ reset button while TIMER is displayed. The display will show the amount of tim ...

Programming the Power Windows
If the battery on the vehicle has been recharged, disconnected, or replaced, windows with the express-up feature need to be reprogrammed for this feature to work. To program the window: 1. Close all ...