So here's a fun topic...

In heavy rain (which we've had a lot of recently) the passenger rear door of my 2010 Journey SXT fills with water. You can hear/feel it sloshing around when you open/close the door. It does leak out from the bottom and empties over time (1-2 hours), but all that water in the door is, of course, not good for anything car-related. I can't see where the water might be getting in the door though. Any ideas for causes and fixes would be very, very much appreciated!

 

Check the bottom of the doors. There are drain holes. May have become clogged, or sometimes they put clear plastic tape over the holes at the factory and the dealer neglects to remove them. Water can get in the door through the outside weatherstripping. It's not uncommon, it is not waterproof.