ewinkles

This may be related to some posts I've studied but I'm still at a loss. My wife observed moisture inside one of the tail lights on her 2006 RX330. Upon further inspection, I noticed water standing in the lower section inside the outer cover over an inch high. After reviewing all of the posts about bugs in them, moisture in them, how to remove them, and whether the outside cover can be removed, I pulled it out looking for any cracks, etc to figure out how that much water is getting in since it hasn't been wet in over a week at least and no downpours, major things like a car wash...nothing. I'm still at a loss. I know that I could rotate it carefully 360 degrees without water escaping which meant the out cover was still sealed pretty good. I then rotated it to flat and the water poured out thru the electrical circuit board/bulb area. Thoughts? Could this be related to the same cause behind the headlight pseudo recall/replacement? I have no idea which way to go as I can find no signs of how the water got there.

neelnaik

Welcome to Club Lexus, ewinkles!
I don't have any ideas on how it's getting in there either. Water gets into all sorts of places. Might be a slow leak or might take a little bit of (water) pressure being hit at it to leak. I know my inner driver side taillight leaks. Fills with water every time I wash it or it rains really hard. Generally, it if just rains (normal), there is only enough water that penetrates to fog up the lens, but not enough to pool. When it fills, I just open the liftgate and then close it again and it all drains out.

If you already have it off the car, I would run a small bead of silicone around the lens and then put it back together when it dries. Then run it through a car wash and see what happens.

dicer

I have early 90's LS400's and they all get water in the tail lights and some in head lights. So I'd say they have had this problem for a few years now. Maybe a recall back to 1990 would be nice.