which seatmotor moves the backrest? any help would be greatly appreciated

There is only a couple of buttons on the seat, did you not try them or something? Im having trouble believing you can't figure that out.

watever motor that works the backrest is not working im guessing its the one in the middle but sumone told me that there is one in theback of the seat and i just wondered if it is that one that controlled the forward and back movement of the backrest