GMC Terrain: Doors / Setting the 3/4 Mode

To change the position the liftgate stops at when opening:

  1. Select MAX or 3/4 mode and power open the liftgate.
  2. Stop the liftgate movement at the desired height by pressing any liftgate switch. Manually adjust the liftgate position if needed.
  3. Press and hold GMC Terrain. Setting the 3/4 Mode next to the pull cup on the bottom of the liftgate until the turn signals flash and a beep sounds. This indicates the setting has been recorded.

The liftgate cannot be set below a minimum programmable height. If there is no light flash or sound, then the height adjustment may be too low.

    Obstacle Detection Features

    If the liftgate encounters an obstacle during a power open or close cycle, the liftgate will automatically reverse direction and move a short distance away from the obstacle...

    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...

    Other information:

    GMC Terrain 2018-2024 Owners Manual: Cleaning the Sensing System


    The camera sensor on the windshield behind the rearview mirror can become blocked by snow, ice, dirt, mud, or debris. This area needs to be cleaned for ACC to operate properly. The vehicle headlamps may need to be cleaned due to dirt, snow, or ice...

    GMC Terrain 2018-2024 Owners Manual: Stop/Start System and Remote Keyless Entry (RKE) System


    Stop/Start System If equipped, the Stop/Start system will shut off the engine to help conserve fuel. It has components designed for the increased number of starts. When the brakes are applied and the vehicle is at a complete stop, the engine may turn off...

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