Add mine to the list
Of leaking tail lights. While washing the RV 2016 31L the other day I noticed moisture in the taillights. They must of had their best bean counters working on that disaster. Removed the covers and did not have any water damage and the screws were just starting to rust, so I was lucky on that part. Think Cock eyed Joe installed mine and used an impact gun to make sure to round out the center of the screws.
Anyway, went to the hardware store and got some SS screws and used 3M Window-weld Ribbon sealer to seal the assemblies, should not have any leaking issues there anymore. Now to tackle the clearance lights on the cab over, a little moisture under a couple of them.