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.

    Customer Satisfaction Procedure

    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...

    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...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Service Emission System


    If a problem occurs with the vehicle emission system, the DIC message SERVICE EMISSION SYSTEM - SEE OWNERS MANUAL NOW – 282 KM (175 MI) UNTIL 104 KM/H (65 MPH) MAX SPEED displays. The displayed mileage will decrease as driving continues. In some cases this message will clear itself, indicating that the emission system was able to correct the condition...

    GMC Terrain 2018-2025 Owners Manual: Driver Behavior. Driving Environment


    Driver Behavior Driving is an important responsibility. Driver behavior, the driving environment, and the vehicle's design all affect how well a vehicle performs. Being aware of these factors can help in understanding how the vehicle handles and what can be done to avoid many types of crashes, including a rollover crash...

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