I have a 2006 LS430. There is a rattle in the back right corner of the moonroof. The rattle is present when the moonroof is closed and the manual shade is closed. Pushing up on the right rear corner of the shade stops the rattle. The rattle is worse the higher the ambient temperature.

I have tried to get this fixed under warranty three times (two different dealers). The rattle never gets fixed. Any ideas as to how I mught fix this myself?

Good luck, that is one of the reasons I hate the moonroofs. I've had similar problems with Ford / Volvo products, unfortunately the LS 430 was not offered without the moonroof in the US (it was available in some other locations without the moonroof). Attached is a copy of the repair instructions, but be prepared for a lot of $$ or hours.Click to view attachment

As unfortunate as it may be, I have a small piece of cardboard slid into a crevice where my rattle originates.

Problem solved.

Hi. I had the same problem with my new, back then, 2000 LS400; dealer fixed problem with some kind of injection of foam or caulking. I still own this car and the moonroof rattle hasn't appeared since rix--knock on wood. The dealer who fixed the problem was Lexus of Concord, Lexus CA. (As an aside, I typically dislike, very much, Lexus dealers' attempts to rip the consumer off, in my experience, which could be a wrongful statement, but not in my experience.)