Additional blocking of locks is intended for prevention of casual opening of back doors by the children going on a back seat. If you transport in the child's car, always include additional blocking of locks on both back doors.

Fig. 1.25. Blocking of locks of back doors from opening from interior of the car

To block the lock of a back door from opening from interior of the car, open a door, insert a key into a cut and turn it in the provision of blocking. After closing the door cannot be open from interior of the car. It can be opened only outside of the car, having pulled for the door handle on itself (fig. 1.25).