GMC Terrain: Fuel / Fuels in Foreign Countries

Prohibited Fuels (Gasoline)

Caution Do not use fuels with any of the following conditions; doing so may damage the vehicle and void its warranty: For vehicles that are not FlexFuel, fuel labeled greater than 15% ethanol by volume, such as mid-level ethanol blends (16–50% ethanol), E85, or FlexFuel...

Fuel Additives

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Other information:

GMC Terrain 2018-2026 Owners Manual: Automatic Door Locks

The doors will lock automatically when all doors are closed, the ignition is on, and the vehicle is shifted out of P (Park). If a vehicle door is unlocked and then opened and closed, the doors will lock either when your foot is removed from the brake or the vehicle speed becomes faster than 13 km/h (8 mph). To unlock the doors: Press on the power door lock switch. Shift into P (Par..

GMC Terrain 2018-2026 Owners Manual: 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 s..