2017 Pacifica manual 3rd row seat issue: We had our manual back 3rd row seats in stow. When we went to bring them back up and they lock in place, the smaller one's back will not release to sitting. It seems to be stuck flat. We do not want to try to force it up. Anyone else find this problem & a home fix. Dealer won't be available to talk to until Monday. And who knows if they will have the time to look at it. I ave a trip in a week and hoping to get it fixed.