Air Conditioning Problems with the Lexus ES 300; I have water soaking
the carpet directly underneath my passenger seat and I want to know
what I am looking at before I take it to the Lexus dealer and I also
want to know if this has been a persistent problem in the past

This kind of problem happened to our car before. I found out that the
hose connecting the AC drain pan to the foot board was disconnected.
That was the reason why water, instead of draining through the
intended drain hole on the foot board, drained inside the car. Check
if that is the problem or if there is a hole somewhere on the pan.