Same issue with my 2002 RX 300. I have been advised by an attorney that unless it is fixed it can be considered breach of warranty which my car is still under. My situation is still playing out and I will update you as it does.
The other interesting piece of info is multiple parties acknowledged that there is a problem but there is no fix but then write down on the ticket that the sound is what they call a "normal characteristic".
So now in addition to breach of warranty they are also now trying to coerce me into saying this is ok. Stay tuned.....
