GMC Terrain 2025 - Customer Assistance Offices; Customer Assistance for Text Telephone (TTY) Users; Online Account and Customer Support

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-18552429) - 2025
Customer Information 301
the General Motors Customer Care Centre,
1
-
800-263-3777 (English), 1-800-263-7854
(French), or write to:
Mediation/Arbitration Program
c/o Customer Care Centre
General Motors of Canada Company
500 Wentworth Street W
Oshawa, ON L1J 0C5
Your inquiry should be accompanied by the
Vehicle Identification Number (VIN).
Customer Assistance Offices
GMC is committed to assisting customers.
Visit us online at www.gmc.com/support
(U.S.) or www.mygmc.ca (Canada) to chat
with us or find answers to commonly asked
questions, tips, vehicle how-to instructions,
and available support.
Need more help? Use the phone
numbers or mailing addresses below for
additional assistance.
United States and Puerto Rico
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
1-800-GMC-8782 (1-800-462-8782)
TTY: Dial 711 relay service and
co
ntact 1-800-833-2438
Roadside Assistance: 1-888-881-3302
Canada
Customer Care Centre
General Motors of Canada Company
500 Wentworth Street W
Oshawa, ON L1J 0C5
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.
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of
hearing, or speech-impaired and/or who use
Text Telephones (TTYs), please dial the national
711 relay service and contact 1-800-833-2438.
TTY users in Canada can dial 1-800-263-3830.
Online Account and Customer
Su
pport
Create aGMC Account (U.S.) at gmc.com
Learn more about your vehicle features, shop
for and manage your connected services
and OnStar plans, and access diagnostic
information specific to your vehicle.
Membership Benefits
E : Download owner’s manuals and view
vehicle-specific how-to videos.
G : View maintenance schedules, alerts, and
Vehicle Diagnostic Information. Schedule
service appointments.
I : View service records from your dealership
and add your own.
D : Select adealer and view locations, maps,
phone numbers, and hours.
r : Track your vehicle’s warranty information.
J : View active recalls by Vehicle Identification
Number (VIN). See Vehicle Identification
Number (VIN) 3295.