GMC Terrain: Setting Adaptive Cruise Control / Irregular Objects Affecting ACC

ACC may have difficulty detecting the following objects:

  • Vehicles in front of your vehicle that have a rear aspect that is low, small, or irregular
  • An empty truck or trailer that has no cargo in the cargo bed
  • Vehicles with cargo extending from the back end
  • Non-standard shaped vehicles, such as vehicle transport, vehicles with a side car fitted, or horse carriages
  • Vehicles that are low to the road surface
  • Objects that are close to the front of your vehicle
  • Vehicles on which extremely heavy cargo is loaded in the cargo area or rear seat

GMC Terrain. Irregular Objects Affecting ACC

    Stationary or Very Slow-Moving Objects

    Warning ACC may not detect and react to stopped or slow-moving vehicles ahead of you. For example, the system may not brake for a vehicle it has never detected moving...

    ACC Automatically Disengages

    ACC may automatically disengage and the driver will need to manually apply the brakes to slow the vehicle if: The front camera is blocked or visibility is reduced...

    Other information:

    GMC Terrain 2018-2021 Owners Manual: Seat Belt Use During Pregnancy


    Seat belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they do not wear seat belts. A pregnant woman should wear a lap-shoulder belt, and the lap portion should be worn as low as possible, below the rounding, throughout the pregnancy...

    GMC Terrain 2018-2021 Owners Manual: 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. Depending on a number of factors monitored by the engine computer, the DPF will need to be cleaned of accumulated solids...

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