I wanted to check in with you Steve to see if anything new has happened. I'm with David in that I can't think of any reason this problem should be happening. In my opinion, and this is only MY opinion, Lexus has a legal responsibility under the terms of the warranty, to tell you specifecly what is the cause of the problem and specifly what you are doing that would put the fault on you. If they can't do this they are refusing to back the warranty by not resolving a known defect.
Just recently, we had a warranty problem with our new town home. After several attempts to get the builder to fix a problem under warranty, we sent by Certified Mail, reciept required, to the head of the warranty dept, the Director of Sales, and the President and CEO. In the letter, we laid out the problem and history and closed with a stern notice that if these things were not resolved, further action would be taken.
This worked right away. A letter from an attorney to the dealer and to Lexus might at least get their attention. Or, a letter from you to the dealer owner and Lexus corp could help.
Sorry I can't do more.
Paul
I apreciate your concern. I will attempt this method next.