I find it almost hilarious that Elon Musk have no problem figuring out how to send rockets to space, but moisture in the reverse lights is apparantly a challenge so hard that Tesla have given up finding a solution. I took delivery of a P85 exactly a year ago, and it was delivered with moisture in one of the reverse lights. I was told there was no fix, and they would contact me when they had a fix. Reading up on internet, I turns out that most cars have this problem. The problem quickly got worse, and both the lights are completely covered with moisture. Anyway, I took delivery of a brand new P85D yesterday, and sure enough, EXACTLY the same problem. This is ridiculous!