GMC Terrain: Customer Information / Customer Assistance for Text Telephone (TTY) Users

GMC Terrain 2018-2023 Owners Manual / Customer Information / Customer Information / 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 in the U.S. can communicate with GMC by dialing: 1-888-889-2438. TTY users in Canada can dial 1-800-263-3830.

    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...

    Online Owner Center

    Online Owner Experience (U.S.) my.gmc.com The GMC online owner experience is a one-stop resource that allows interaction with GMC and keeps important vehicle-specific information in one place...

    Other information:

    GMC Terrain 2018-2023 Owners Manual: Tire Designations


    Tire Size The following is an example of a typical passenger vehicle tire size. Passenger (P-Metric) Tire : The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U...

    GMC Terrain 2018-2023 Owners Manual: Power Liftgate Operation


    Warning You or others could be injured if caught in the path of the power liftgate. Make sure there is no one in the way of the liftgate as it is opening and closing. Caution To avoid damage to the liftgate or liftgate glass, make sure the area above and behind the liftgate is clear before opening it...

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