The upper right button locks the dead bolt and activates the security system.

The upper left button unlocks the dead bolt and deactivates the security system.

The lower left button releases both the dead bolt and the latch bolt. The latch bolt remains in the open position for five seconds to allow time for access before sliding out again.

When the security system is activated, the i-Lock alarm is on and begins sending warning messages, press both the upper right and upper left button simultaneously to shut off alarm and cancel warning messages.