GMC Terrain: Fuel / 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 system parts or damage plastic and rubber parts.
  • Fuel containing metals such as methylcyclopentadienyl manganese tricarbonyl (MMT), which can damage the emissions control system and spark plugs.
  • Fuel with a posted octane rating of less than the recommended fuel. Using this fuel will lower fuel economy and performance, and may decrease the life of the emissions catalyst.

    Recommended Fuel (LYX - 1.5L L4 Turbo Engine, LTG - 2.0L L4 Turbo Engine)

    LYX - 1.5L L4 Turbo Engine Do not use any fuel labeled E85 or FlexFuel. Do not use gasoline with ethanol levels greater than 15% by volume. Use regular unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 87 or higher...

    Fuels in Foreign Countries

    The U.S., Canada, and Mexico post fuel octane ratings in anti-knock index (AKI). For fuel not to use in a foreign country, see Prohibited Fuels (Gasoline)...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Rear Seat Reminder


    If equipped, the message REAR SEAT REMINDER LOOK IN REAR SEAT displays under certain conditions indicating there may be an item or passenger in the rear seat. Check before exiting the vehicle. This feature will activate when a second row door is opened while the vehicle is on or up to 10 minutes before the vehicle is turned on...

    GMC Terrain 2018-2025 Owners Manual: Manual Operation


    Select OFF to manually operate the liftgate. Caution Attempting to move the liftgate too quickly and with excessive force may result in damage to the vehicle. Operate the liftgate manually with a smooth motion and moderate speed. The system includes a feature which limits the manual closing speed to protect the components...

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