Occasionally when we have a heavy rain and the van has been parked in it, our van will dump water onto the drivers feet when it is reversed.

Dealership has been “unable to duplicate the leak” multiple times and sent us home.

Has anyone seen anything like this?

 

I would look at the sunroof drains to make sure they aren't clogged. Not sure how the HVAC vents are connected in the Odyssey but it could also be something coming in from the fresh air intakes at the leading edge of the windshield. Let us know what you find out and good luck!

 

We have this same issue and Honda can't figure it out. Did you get fixed?