GMC Terrain: Doors / Setting the 3/4 Mode

GMC Terrain 2018-2025 Owners Manual / Keys, Doors, and Windows / Doors / Setting the 3/4 Mode

To change the position the liftgate stops at when opening:

Select MAX or 3/4 mode and power open the liftgate.
Stop the liftgate movement at the desired height by pressing any liftgate switch. Manually adjust the liftgate position if needed.
Press and hold 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 2018-2025 Owners Manual: Passenger Sensing System

The vehicle has a passenger sensing system for the front outboard passenger position. The passenger airbag status indicator will light on the overhead console when the vehicle is started. The words ON and OFF will be visible during the system check...

GMC Terrain 2018-2025 Owners Manual: Saving Memory Positions

Read these instructions completely before saving memory positions. To save preferred driving positions 1 and 2: Turn the ignition on or to ACC/ ACCESSORY.A DIC welcome message may indicate driver number 1 or 2. Adjust all available memory features to the desired driving position...

Tire Pressure Light

GMC Terrain. Tire Pressure Light

For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.