... , long life. 1,TOYOTA,NISSAN2,2011HONDA3,2012HONDA1.Speed lock device is one original function of vehicle, embedded type design, ... , when driver start the vehicle and its speed exceeds 20KM/hour,the rear door automatically locked;Speed lock device automatically recognizes ... 0KM), It can avoid a dangerous when the car driver meets accidents, the car door central locking unlock automatically will ...