... performance, long life. 1,TOYOTA,NISSAN2,2011HONDA3,2012HONDA1.Speed lock device is one original function of vehicle, embedded type design, ... and shock-proof.Functions:1. Speed lock (automatic car first, manual operation second): If automatic car, when driver in "R" "D ... exceeds 20KM/hour,the rear door automatically locked;Speed lock device automatically recognizes whether the four doors closed or no. ...