To lock without using the keyTo lock without using the key  - Doors - Locking and unlocking - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

Set the inside lock knob (1) to the locked position, and close the door (2).

Set the inside lock knob (1) to the locked position, and close the door (2).

► The driver’s door cannot be locked using the inside lock knob while the driver’s Note

► The driver’s door cannot be locked using the inside lock knob while the driver’s door is opened.

    See also:

    Warning display list (when the ignition switch is “OFF”)
    ...

    Rear fog lamp switch
    The rear fog lamp can be operated when the headlamps or front fog lamps (if so equipped) turn on. An indication lamp in the instrument cluster comes on when the rear fog lamp is turned on. [Vehi ...

    Ventilators
    1- Centre ventilators 2- Side ventilators NOTE • Do not place beverages on top of the instrument panel. If they splash into the air conditioning ventilators, they could damage the system. Ai ...