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:

    Operation of the outside rear-view mirrors (Vehicles equipped with mirror retractor switch)
    To fold Within 30 seconds of locking the doors and rear hatch using the LOCK switch (1), press the LOCK switch twice rapidly to fold the outside rear-view mirrors. To extend Within 30 seconds of ...

    Tailgate
    WARNING • It is dangerous to drive with the tailgate open, since carbon monoxide (CO) gas can enter the cabin. You cannot see or smell CO. It can cause unconsciousness and even death. • When ...

    Inside rear hatch release
    The inside rear hatch release is designed to provide a way to open the rear hatch in the case of a discharged battery. The rear hatch release lever (see illustration) is mounted on the rear hatch. ...