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: Replacing Seat Belt System Parts after a Crash


    Warning A crash can damage the seat belt system in the vehicle. A damaged seat belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure the seat belt systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible...

    GMC Terrain 2018-2026 Owners Manual: Engine Coolant Temperature Gauge


    Metric Uplevel English Uplevel This gauge shows the engine coolant temperature. If the pointer moves toward the warning area at the high end of the gauge, the engine is too hot. If the engine coolant has overheated and the vehicle has been operating under normal driving conditions, pull off the road, stop the vehicle, and turn off the engine as soon as possible...

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