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:

    Emergency stop signal system
    This is a device that reduces the possibility of rear end collisions by the rapid and automatic blinking of the hazard warning lamps to alert vehicles approaching from behind during sudden braking ...

    Odometer/Tripmeter
    The operation method is the same as when the ignition switch is “OFF”. Refer to “Odometer/Tripmeter” for further details. ...

    Vehicles with Twin Clutch SST
    ...