GMC Terrain: Reporting Safety Defects / Reporting Safety Defects to the Canadian Government

Reporting Safety Defects to the United States Government

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying General Motors...

Reporting Safety Defects to General Motors

In addition to notifying NHTSA (or Transport Canada) in a situation like this, notify General Motors. In the U.S., call 1-800-GMC-8782 (1-800-462-8782), or write: GMC Customer Assistance Center P...

Other information:

GMC Terrain 2018-2025 Owners Manual: Roadside Assistance Program

For U.S.-purchased vehicles, call 1-888-881-3302; (Text Telephone (TTY): 1-888-889-2438). For Canadian-purchased vehicles, call 1-800-268-6800. Service is available 24 hours a day, 365 days a year. Calling for Assistance When calling Roadside Assistance, have the following information ready: Your name, home address, and home telephone number Telephone number of your location Location..

GMC Terrain 2018-2025 Owners Manual: Doing Your Own Service Work

Warning It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner’s manual procedures and consult the service manual for your vehicle before doing any service work. If doing some of your own service work, use the proper service manual. It tells you much more about how to service the vehicle than this manua..