Took the middle row captain's chairs out of our 2010 today for just the second time. When I put them back in, the back on one wouldn't fold up from the bottom at all. The other worked fine. I then decided to lay the working one down again to see if I could see any difference in how it folds or releases. After about 5 times folding it down and up, it decided to stay down too. Any suggestions? or do I need to go to the dealer?