GMC Terrain: Performance and Maintenance / 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.
  • Avoid fast starts and accelerate smoothly.
  • Brake gradually and avoid abrupt stops.
  • Avoid idling the engine for long periods of time.
  • When road and weather conditions are appropriate, use cruise control.
  • Always follow posted speed limits or drive more slowly when conditions require.
  1. Keep vehicle tires properly inflated.
  2. Combine several trips into a single trip.
  3. Replace the vehicle's tires with the same TPC Spec number molded into the tire's sidewall near the size.
  4. Follow recommended scheduled 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...

    Diesel Particulate Filter

    The engine is equipped with a Diesel Particulate Filter (DPF) that will filter or trap particulates. The DPF is under the vehicle in the exhaust system...

    Other information:

    GMC Terrain 2018-2026 Owners Manual: Door Locks


    Warning Unlocked doors can be dangerous. Passengers, especially children, can easily open the doors and fall out of a moving vehicle. The doors can be unlocked and opened while the vehicle is moving. The chance of being thrown out of the vehicle in a crash is increased if the doors are not locked...

    GMC Terrain 2018-2026 Owners Manual: Connections


    The following services help with staying connected. For coverage maps, see www.onstar.com (U.S.) or www.onstar.ca (Canada). Ensuring Security Change the default passwords for the Wi-Fi hotspot and myGMC mobile application. Make these passwords different from each other and use a combination of letters, numbers, and symbols to increase the security...

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