GMC Terrain: Service and Maintenance / Recommended Fluids, Lubricants, and Parts

Additional Maintenance and Care

Your vehicle is an important investment and caring for it properly may help to avoid future costly repairs. To maintain vehicle performance, additional maintenance services may be required...

Recommended Fluids and Lubricants

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Other information:

GMC Terrain 2018-2023 Owners Manual: Prohibited Fuels (Gasoline)

Caution Do not use fuels with any of the following conditions; doing so may damage the vehicle and void its warranty: For vehicles that are not FlexFuel, fuel labeled greater than 15% ethanol by volume, such as mid-level ethanol blends (16–50% ethanol), E85, or FlexFuel. Fuel with any amount of methanol, methylal, ferrocene, and aniline. These fuels can corrode metal fuel..

GMC Terrain 2018-2023 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..