took it to alderson in lubbock, tx. here's what they said, the last time it had an oil change, the air filter wasn't replaced, this caused the a/c valve or somethin to clog thus not letting the water drain like its supposed to. the water had to go somewhere and it was soaked up thru the carpet behind the front passenger seat! valve was unclogged, carpet was dried, filter replaced, everythings good to go. word of obvious advice to everyone who reads this, " Don't assume the dealership will do everything right!!" And just FYI it was not Alderson Lexus with whom I had problems with, they do a great job over there.