To lock or unlock with the keyTo lock or unlock with the key  - Doors - Locking and unlocking - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

1- Lock

1- Lock
2- Unlock

► On vehicles equipped with the central door lock switch, when locking or unlocking Note

► On vehicles equipped with the central door lock switch, when locking or unlocking with the key, only the driver’s door will be locked or unlocked.

To lock or unlock all doors and the rear hatch, use the central door lock switch, the keyless entry system or the keyless operation function.

Refer to “Central door locks”.

Refer to “Keyless entry system” on pages 1-04 and 1-23, and “To operate using the keyless operation function”.

► If the vehicle is equipped with the keyless operation system, the door can be locked or unlocked with the emergency key. Refer to “Emergency key”.

    See also:

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    Horn switch
    Press the steering wheel on or around the mark. ...