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:
Storing Memory Positions
To save into memory:
1. Adjust the driver seat, seatback recliner, and both outside mirrors.
See Power Mirrors on page 2‑16 for more information.
Not all vehicles will have the ability to sav ...
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp
To replace one of these bulbs:
1. Remove the two screws and lift off the lamp assembly.
A. Cargo Lamp
B. Center High-Mounted Stoplamp (CHMSL) Bulb
2. On the reverse side of the lamp assembly, r ...
Wheel Alignment
Wheel alignment is critical for ensuring that the tires deliver optimal wear and performance.
• Signs that the alignment may need to be adjusted include pulling, improper vehicle handling, or unusu ...





