To lockTo lock  - Keyless entry system - Locking and unlocking - Mitsubishi Lancer Owner's Manual - Mitsubishi Lancer

Press the LOCK switch (1). All the doors and rear hatch will be locked. The turn-signal lamps will blink once.

► With a vehicle that has a Dead Lock System, pressing the LOCK switch (1) two Note

► With a vehicle that has a Dead Lock System, pressing the LOCK switch (1) two times in succession causes the Dead Lock System to be set. (Refer to “Setting the system”.)

    See also:

    Starting the engine (Petrol-powered vehicles)
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    Headlamp flasher
    The high-beams flash when the lever is pulled slightly (2), and will go off when it is released. When the high-beam is on, the high-beam indication lamp in the instrument cluster will illuminate. ...

    ACD control mode switch
    When the ignition switch is set to the “ON” position, operate the AWC switch to change the control mode. Each time the switch is pushed, the control mode changes in the order “TARMAC”  ...