GMC Terrain: Fuel / Recommended Fuel (LYX - 1.5L L4 Turbo Engine, LTG - 2.0L L4 Turbo Engine)

GMC Terrain 2018-2021 Owners Manual / Driving and Operating / Fuel / 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. Do not use gasoline with a posted octane rating of less than 87, as this may cause engine knock and will lower fuel economy.

LTG - 2.0L L4 Turbo Engine

Do not use any fuel labeled E85 or FlexFuel. Do not use gasoline with ethanol levels greater than 15% by volume.

Premium unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 93 is highly recommended for best performance and fuel economy. Unleaded gasoline with an octane rated as low as 87 can be used.

Using unleaded gasoline rated below 93 octane, however, will lead to reduced acceleration and fuel economy. If knocking occurs, use a gasoline rated at 93 octane as soon as possible, otherwise, the engine could be damaged. If heavy knocking is heard when using gasoline with a 93 octane rating, the engine needs service.

    Top Tier Fuel (Gasoline and Diesel)

    Top Tier Fuel (Gasoline) GM recommends the use of TOP TIER Detergent Gasoline to keep the engine clean, reduce engine deposits, and maintain optimal vehicle performance...

    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...

    Other information:

    GMC Terrain 2018-2021 Owners Manual: Antilock Brake System (ABS) Warning Light


    For vehicles with the Antilock Brake System (ABS), this light comes on briefly when the engine is started. If the light does not come on, have it fixed so it will be ready to warn if there is a problem. If the ABS light comes on and stays on while driving, stop as soon as possible and turn the ignition off...

    GMC Terrain 2018-2021 Owners Manual: Heated and Ventilated Seats


    If equipped, the buttons are on the center console. To operate, the engine must be running. Press or , if equipped, to heat the driver or passenger seatback only. Press or to heat the driver or passenger cushion and seatback. Press or , if equipped, to ventilate the driver or passenger seat...

      Categories

      Vehicle Personalization

      The following are all possible vehicle personalization features. Depending on the vehicle, some may not be available.

      For System, Apps, and Personal features and functions, see “Settings” in the infotainment manual.

      To access the vehicle personalization menu:

      Touch the Settings icon on the Home Page of the infotainment display. Touch Vehicle to display a list of available options. Touch to select the desired feature setting. Touch GMC Terrain. Vehicle Personalization or R to turn a feature off or on. Touch GMC Terrain. Vehicle Personalization to go to the top level of the Settings menu.

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