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: Heated and Ventilated Front Seats


    Warning If temperature change or pain to the skin cannot be felt, the seat heater may cause burns. To reduce the risk of burns, use care when using the seat heater, especially for long periods of time. Do not place anything on the seat that insulates against heat, such as a blanket, cushion, cover, or similar item...

    GMC Terrain 2018-2025 Owners Manual: Increasing Speed While ACC Is at a Set Speed


    If ACC is already activated, do one of the following: Use the accelerator to get to the higher speed. Press SET–. Release SET– and the accelerator pedal. The vehicle will now cruise at the higher speed.When the accelerator pedal is pressed, ACC will not brake because it is overridden...

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