GMC Sierra Owners Manuals

See also:

Four-Way Power Driver Seat
A. Seat Position Handle B. Height Adjustment Control To adjust the seat: ○ Move the seat forward or rearward using the handle under the front of the seat cushion (A). See Seat Adjustment ...

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 ...

Shifting Into Four-Wheel Drive Low
When Four-Wheel Drive Low is engaged, vehicle speed should be kept below 72 km/h (45 mph). Extended high-speed operation in Four-Wheel Drive Low may damage or shorten the life of the drivetrain. To ...