Leaderboard

I have this problem too and I have researched it extensively. The leak is not what it seems. If you open your sunroof you can see a small hole at each corner. These holes are connected to drain tubes that can come loose. When the rear corners are loose it leaks to the rear floorboards and when the front corners are loose you get water on the speaker/floor. When the fronts are loose water runs over to the top of the windshield and then down the INNER acoustic door seal (not the seal you can see from outside the car) before finally dripping next to the speaker and onto the carpet. It looks like its a door seal problem or a windshield seal, but I would check the sunroof first. The fix is to take the headliner out and re-connect the drain tube from inside the car. Not as easy as it sounds. I have not been able to find any good instructions on how to get the headliner out, but I understand it is just held in by clips. I have made a few attempts at this with no luck. I am very concerned about snapping a clip and then having the liner sag so I chicken out. Whatever you do, DON'T use a pressure washer to locate the leak. Just trickle water from the hose over one seal at a time. First the door, then the windshield and then the sunroof. Check for leaks after each by looking in thru the opposite door. I think you will not see water on the floor until you get to the sunroof. Thats my $1.02 aprilguy, you made the right purchase. You have a great car with a temporary leak is all. That's why Lexus is the Persuit of perfection. Check with the dealer or a custom/detailing shop and they should have you dry in no time. Good luck and enjoy.