GMC Terrain: Customer Information / Customer Assistance Offices
GMC encourages customers to call
the toll-free number for assistance.
However, if a customer wishes to
write or e-mail GMC, the letter
should be addressed to:
United States and Puerto Rico
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
www.gmc.com
1-800-GMC-8782 (1-800-462-8782)
1-888-889-2438 (For Text Telephone devices (TTYs))
Roadside Assistance:
1-888-881-3302
From U.S. Virgin Islands: 1-800-496-9994
Canada
General Motors of Canada Company
Customer Care Centre, Mail Code:
CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
www.gmc.ca
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
Overseas
Please contact the local General Motors Business Unit.
Your satisfaction and goodwill are
important to your dealer and to
GMC. Normally, any concerns with
the sales transaction or the
operation of the vehicle will be
resolved by your dealer's sales or
service departments...
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...
Other information:
If the vehicle is involved in a
collision and it is damaged, have the
damage repaired by a qualified
technician using the proper
equipment and quality replacement
parts. Poorly performed collision
repairs diminish the vehicle resale
value, and safety performance can
be compromised in subsequent
collisions...
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal
in that direction. It may also provide
a Lane Departure Warning (LDW)
system alert as the lane marking is
crossed...