It also happened on our 2005 RX330 Thundercloud Edition. I got the same bad news from the dealer that others have gotten, and like them I am not very happy that Lexus sells a complete window when just a price of trim is needed. I decided to bring this to the dealership management and requested they contact Lexus on my behalf. While I may be the only one who thinks like this, I do not think a piece of trim should just fall off and have no way of being replaced (just the trim). I asked him to ask for a good will repair since it will not be likely to find the piece I need in a breakage yard. The thundercloud edition was the one they built in japan and there were not a large number of them.