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:

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

    Key lock-in prevention system
    When the ignition switch is in the “LOCK” (PUSH OFF) position, if you close all the doors and the rear hatch with the keyless operation key left in the vehicle and you try to lock the doors ...

    Radio control panel and display
    1- PWR (On-Off) switch 2- AM/FM (FM/MW/LW selection) button 3- Memory select buttons 4- TUNE switch 5- SEEK (Up-seek) button 6- SEEK (Down-seek) button 7- FM (FM1/FM2/FM3) indicator 8- ST ( ...