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

GMC Terrain 2018-2022 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 2018-2022 Owners Manual: Curves in the Road


    Warning On curves, ACC may not detect a vehicle ahead in your lane. You could be startled if the vehicle accelerates up to the set speed, especially when following a vehicle exiting or entering exit ramps. You could lose control of the vehicle or crash...

    GMC Terrain 2018-2022 Owners Manual: Reading Lamps


    There are reading lamps on the overhead console and over the rear passenger doors. These lamps come on when any door is opened. Front Reading Lamps The front reading lamps are in the overhead console. Press the lamp lenses to turn the front reading lamps on or off...

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