Hi folks, I LOVE my RX400h, but I am now dealing with my third water ingress/flooding issue and I am running out of ideas. The first time it flooded, I stripped everything out and did the A-pillar refit/seal. That worked well, and I no longer get water pooling in the front or driver's footwell. The second time it flooded, which happened just after I had fitted a new hybrid battery, the front was completely dry, but the hybrid battery area was flooded. I then discovered that the seams around the rear hatch/boot opening can be a known problem area. I went over those seams thoroughly with sealant and also removed the black rubber strips from the inner roof rack rail running from the fixture point of the back roof rack (about 8-10 cm) to the rear hatch and sealed underneath them. At that point I thought I had covered all the known water ingress points. But the *BLEEP* of a thing has flooded again. I am now at a loss as to where the water is getting in. There are no obvious water stains on the pillars, and I can't see any evidence that it is coming up through missing plastic or rubber plugs underneath the chassis. If anyone here has experienced something similar, or knows of any other common RX400h water entry points I should be checking, I would really appreciate the advice. I've given this car a lot of love, and the previous owner was fastidious with servicing and maintenance at Lexus, so it feels like a huge waste to junk it over a water leak I just can't seem to track down.