It often happens that the trailer unhooks from the player's tractor when it is not needed at all. Now this is not a problem. If the trailer is unhitched from the tractor, it will automatically hitch back. It is possible to unhook a trailer. To do this, stop the tractor, press the 'answer - no' button and drive away from the trailer. The script only works when the player is not completing missions. Only for CLEO 4.