Point it downhill and try to get it to leak by flooding the bed and rear window area. Keep sticking it to Honda and making it expensive for them. I know it's a pain, but we have to be persistent.I just got my truck back after FORTY EIGHT DAYS at the dealer. The carpet they replaced is still torn, but now sewn rather than replaced, so it will go back for new carpet once that comes in. We will see how it holds up to the rain, zero confidence it is fixed, no notes or pictures provided on what was done, not assurance it is fixed, merely that is is "back from the body shop." Fed up.