So one of my 3rd row seats isn't working right. Normal procedure is easy: I lift the back until it latches then fold over the seat. Simple. One of the seats is not latching in place when the seat back is folded up to sit in. It will stay upright unless i push or pull on it and it moves easily and it isn't supposed to. I'm hesitant in having anyone sit there in case of an accident. It seems like something on the side of the seat that is supposed to latch is slipping. Any ideas?