GMC Terrain: Performance and Maintenance / Engine Oil Life System

GMC Terrain 2018-2023 Owners Manual / In Brief / Performance and Maintenance / Engine Oil Life System

The engine oil life system calculates engine oil life based on vehicle use and displays the CHANGE ENGINE OIL SOON message when it is time to change the engine oil and filter.

The oil life system should be reset to 100% only following an oil change.

Resetting the Oil Life System

  1. Display REMAINING OIL LIFE on the DIC menu. See Driver Information Center (DIC) (Base and Midlevel) or Driver Information Center (DIC) (Uplevel).
  2. Press and hold GMC Terrain. Engine Oil Life System for several seconds while the Oil Life display is active to reset the Oil Life system.
  3. REMAINING OIL LIFE 100% will be displayed when the oil life system is successfully reset.

The oil life system can also be reset as follows:

  1. Place the ignition in Service Mode. See Ignition Positions.
  2. Display REMAINING OIL LIFE on the DIC menu. See Driver Information Center (DIC) (Base and Midlevel) or Driver Information Center (DIC) (Uplevel).
  3. Fully press and release the accelerator pedal three times within five seconds.
  4. If the display changes to 100%, the system is reset. See Engine Oil Life System.

    Fuel (Diesel). E85 or FlexFuel

    Fuel (Diesel). Use of diesel fuel with ultra low sulfur content (15 ppm, maximum) is required. See Fuel for Diesel Engines. E85 or FlexFuel No E85 or FlexFuel Gasoline-ethanol fuel blends greater than E15 (15% ethanol by volume), such as E85, cannot be used in this vehicle...

    Driving for Better Fuel Economy

    Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible: Set the climate controls to the desired temperature after the engine is started, or turn them off when not required...

    Other information:

    GMC Terrain 2018-2023 Owners Manual: Maintenance Schedule


    Owner Checks and Services At Each Fuel Stop Check the engine oil level. See Engine Oil. Once a Month Check the tire inflation pressures. See Tire Pressure. Inspect the tires for wear. See Tire Inspection. Check the windshield washer fluid level...

    GMC Terrain 2018-2023 Owners Manual: Manual Reclining Seatbacks


    Warning If either seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatbacks to be sure they are locked. To recline a manual seatback: Lift the lever...

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