We have had multiple seat latches fail on our vehicle. We have attempted to WD40 the mechanism and have ensured there is nothing in the tract but the second row passenger seat as well as the larger drivers side third row seat are not latching onto the tract. The mechanism moved freely but they are not latching into place. I had submitted a safety recall claim for our second row seat a while back as it created a significant safety issue with our child in the seat. Now the rear seat is having a similar problem. The biggest issue is that it will seem that it is latching and then during times of safety concerns (occupied while driving) it unlatches. My son was sitting in the rear and lurched with the latch causing him to bite his tongue. The second row seat has yet to be fixed, and moved around while driving further causing a safety concern.