A class action law suit over a windhield wiper, now I have heard it all. I have no problem with the rain sensing wipers. Sometimes it does fall asleep, I just turn it on in manual then back to auto and everything is fine, but it doesnt happen that often. The dealer can also change the auto sensing adjutment to just plain old intermitent adjustment, but no matter what they do, I have a feeling you wont be happy. You didnt like your GS the day you bought it, and the wipers is just another excuse to get rid of it. My advise is to just sell it and never buy another Lexus again.