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

GMC Terrain 2018-2026 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 2018-2026 Owners Manual: Brake Fluid

The brake master cylinder reservoir is filled with GM approved DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview for the location of the reservoir. Checking Brake Fluid With the vehicle in P (Park) on a level surface, the brake fluid level should be between the minimum and maximum marks on the brake fluid reservoir...

GMC Terrain 2018-2026 Owners Manual: Tire Pressure Monitor