The seizure prevention of trailers and articulated vehicles and a method, control system and equipment to prevent the seizure of a vehicle combination and/or a trailer to be connected with a drawing vehicle. According to the invention based on the data transfer between the first control unit (23) in the drawing vehicle and the second control unit (10, 10') in the trailer, the trailer and/or the vehicle combination formed by the trailer and the drawing vehicle is locked in such a way, that it becomes unfit for driving or towing, whereby when an attempt of seizure is directed to a vehicle combination at least one of the following actions is performed: the turning shaft (5, 5') or turning bogie (6, 6') of the trailer is locked as unturnable; the trailer, particularly a half-trailer, is bolted to the drawing table as unturnable in regard to the drawing table; and whereby when an attempt of seizure is directed to a trailer left by itself also moving of the pull pin (16) of the trailer is selectively prevented to the drawing position, in which coupling of the pull pin (16) to the drawing table and towing of the trailer by the pull pin (16) are possible.