GMC Terrain: Setting Adaptive Cruise Control / Do Not Use ACC on Hills and When Towing a Trailer

Driving in Narrow Lanes

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Disengaging ACC

There are three ways to disengage ACC: Step lightly on the brake pedal. Press . Press . ..

Other information:

GMC Terrain 2018-2024 Owners Manual: Manual Operation

Select OFF to manually operate the liftgate. Caution Attempting to move the liftgate too quickly and with excessive force may result in damage to the vehicle. Operate the liftgate manually with a smooth motion and moderate speed. The system includes a feature which limits the manual closing speed to protect the components. To open the liftgate, press on the power door lock switch or p..

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..