GMC Terrain: Keys and Locks / 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 GMC Terrain. Automatic Door Locks on the power door lock switch.
  • Shift into P (Park).

Automatic door locking cannot be disabled. Automatic door unlocking can be programmed. See Vehicle Personalization.

    Delayed Locking

    This feature delays the actual locking of the doors until five seconds after all doors are closed. Delayed locking can only be turned on when the Open Door Anti-Lockout feature has been turned off...

    Lockout Protection

    If the ignition is on or in ACC/ ACCESSORY and the power door lock switch is pressed with the driver door open, all the doors will lock and only the driver door will unlock...

    Other information:

    GMC Terrain 2018-2024 Owners Manual: Driver Mode Control


    The Driver Mode Control has the following Modes: Tour (FWD), All-Wheel Drive (AWD), Snow/Ice, and Tow/Haul. Turn the Driver Mode Control knob on the center console to make a mode selection. Continue turning the knob through the available modes...

    GMC Terrain 2018-2024 Owners Manual: Steering


    Electric Power Steering The vehicle has electric power steering. It does not have power steering fluid. Regular maintenance is not required. If power steering assist is lost due to a system malfunction, the vehicle can be steered, but may require increased effort...

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