I have a 2012 Nissan Quest. The automatic sliding doors have worked fine until now. Both will still open and close with the button, but one will not finish closing. It pulls closed but the final closing mechanism does not engage. It seems like the rear latch is not cycling. Anyone run into this or have ideas for the fix?

 

I had the same issue not long ago where I had to force the door shut at the end of its cycle. It turned put to be debris and miscellaneous crap that somehow made it into the footboard track area. I'm thinking it's from all the kiddos that I drive around in my van. The first thing I did was vacuum the whole bottom track area and its surroundings. Then I sprayed purple power on it and scrubbed the funky stuff off (no idea what it was) as it had actually formed like a little hill when track went over it and seemed to struggle once there. Cleaned it up with my wet vac and then let it all completely air dry after all liquid and crap was vacuumed.
Out of curiosity, I checked all the nuts and bolts to see of they were all tight and to my surprise they were all somewhat loose. I tightened them all firmly, then sprayed the latches with lithium grease and also the cables. Opened and shut the doors a few times to be able to get the entire cable. After several times, the doors were finally shutting on there own without any of my help.