Functions: 1) Lock the keyboard 2) Reverse siren 3) The operation of shut down the reverse horn 4) Set sound and light alarm system 5) Trigger alarming 6) Disarm alarm / automatically resume alarm 7) Set mute alarm 8) Car search / warn off 9) Remind setting alarm system / automatically set alarm system 10) Door alarming 11) Anti-robbery 12) Parking mode 13) Memory out of battery 14) Release trunk 15) Car door alarm 16) Coding 17) Central control automation