Using the key on the driver’s doorUsing the key on the driver’s door  - Type 2 (Except for vehicles equipped with the central door lock switch) - Central door locks - Locking and unlocking - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

Using the key on the driver’s door locks or unlocks all doors and rear hatch.

1- Lock

1- Lock
2- Unlock

    See also:

    Ignition switch
    [For vehicles equipped with keyless operation system] For information on operations for vehicles equipped with the keyless operation system, refer to “Keyless operation system: Ignition switch” ...

    Child restraint
    When transporting children in your vehicle, some type of child restraint system should always be used according to the size of the child. This is required by law in most countries. The regulation ...

    Door ajar warning display screen (when the ignition switch is “ON”)
    If any of the doors or the rear hatch is not completely closed, this displays the open door or rear hatch. If the vehicle speed exceeds approximately 8 km/h (5 mph) while a door is ajar, a buzz ...