GMC T-Series 1999, Owner'S Manual

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We encourage you to call the toll-free number in order
to give your inquiry prompt attention. Please have the
following information available to give the Customer
Assistance Representative:
D Vehicle Identification Number (This is available
from the vehicle registration or title, or the plate
at the top left of the instrument panel and visible
through the windshield.)
D Dealership name and location
D Vehicle delivery date and present mileage
When contacting GMC, please remember that your
concern will likely be resolved at a dealer’s facility. That
is why we suggest you follow Step One first if you have
a concern.
Customer Assistance for Text
Telephone (TTY) Users
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
-
GMC
-
8583 (1
-
800
-
462
-
8583).
(TTY users in Canada can dial 1
-
800
-
263
-
3830.)
Customer Assistance Offices
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 436008
Pontiac, MI 48343-6008
1-800-GMC-8782 (1-800-462-8782)
1-800-462-8583 (For Text Telephone devices (TTYs))
Roadside Assistance: 1-800-GMC-8782