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 2018-2025 Owners Manual: Passenger Sensing System


    The passenger sensing system turns off the front outboard passenger frontal airbag under certain conditions. No other airbag is affected by the passenger sensing system. See Passenger Sensing System. The passenger airbag status indicator will light on the overhead console when the vehicle is started...

    GMC Terrain 2018-2025 Owners Manual: Instrument Panel


    Air Vents Turn Signal Lever. See Turn and Lane-Change Signals. IntelliBeam System Button (If Equipped). See Exterior Lamp Controls. Instrument Cluster (Base and Midlevel) or Instrument Cluster (Uplevel).Driver Information Center (DIC) Display. See Driver Information Center (DIC) (Base and Midlevel)  or Driver Information Center (DIC) (Uplevel)...

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