GMC 2003 Sierra 1500 Pickup Owner's Manual page 527

Customer Assistance for Text
Telephone (TTY) Users
To assist Customers who are deaf, hard of hearing, or
speech-impaired and who use the Text Telephones
(TTYs), GMC has TTY equipment available at its
Customer Assistance Center. Any TTY user can
communicate with GMC by dialing: 1 -800-GMC-8583
(462-8583). (TTY users in Canada can dial
1-800-263-3830.)
Customer Assistance Off ices
GMC encourages customers to call the toll-free number
for assistance. If a U.S. customer wishes to write to
GMC, the letter should be addressed to GMC's
Customer Assistance Center.
United States
Pontiac-GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-51 72
1 -800-GMC-8583 (462-8583) (For Text Telephone
devices (TTYs))
Roadside Assistance: 1 -800-GMC-8782 (462-8782)
Fax Number: 31 3-381 -0022
1 -800-GMC-8782 (462-8782)
From Puerto Rico
1-800-496-9992 (English)
1-800-496-9993 (Spanish)
Fax Number: 31 3-381 -0022
U.S. Virgin Islands:
Fax Number: 31 3-381 -0022
1-800-496-9994
Canada
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1 H 8P7
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone devices (TTYs)
Roadside Assistance: 1-800-268-6800
7-4