GMC Terrain: Setting Adaptive Cruise Control / 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. This can occur in stop-and-go traffic or when a vehicle suddenly appears due to a vehicle ahead changing lanes. Your vehicle may not stop and could cause a crash. Use caution when using ACC. Your complete attention is always required while driving and you should be ready to take action and apply the brakes.

    Approaching and Following a Vehicle

    The vehicle ahead indicator is in the instrument cluster. It only displays when a vehicle is detected in your vehicle’s path moving in the same direction...

    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..

    Other information:

    GMC Terrain 2018-2024 Owners Manual: Gasoline Engine Starting Procedure


    With the Keyless Access system, the Remote Keyless Entry (RKE) transmitter must be in the vehicle. Press ENGINE START/STOP with the brake pedal applied. When the engine begins cranking, let go of the button.The idle speed will go down as the engine gets warm. Do not race the engine immediately after starting it. If the RKE transmitter is not in the vehicle, if there is i..

    GMC Terrain 2018-2024 Owners Manual: Resuming a Set Speed


    If the ACC is set at a desired speed and then the brakes are applied, ACC is disengaged without erasing the set speed from memory. To begin using ACC again, press RES+ briefly while moving more than 5 km/h (3 mph). The vehicle returns to the previous set speed. A green ACC indicator and the set speed display on the instrument cluster. The vehicle ahead indicator may be flashing if a vehic..

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