Do you know what the tsb number is or the fix for the issueThere's a TSB on this. If it's not coming from that grommet, it's coming from the rear driver's side wheel well. I have this issue as well.
I found water under the rear storage bin.
Seem coming from the little grill close the handle use for folding the passenger side rear seat.
FYI...I have a 2013 Crosstour EX-L with Navi (2WD 4 Cyc) and my XM receiver was damaged and had to be replaced because of the rain water that came through that hole since the grommet wasn’t seated properly. Expensive fix.Check the rubber grommet that runs the wiper fluid to the rear wiper. It’s a pass through grommet that Runs the hose through it. Mine was not seated properly to the bodywork, and causing water to go down it. Input some silicone on mine when I put it back for good measures. Open the trunk, top right (passenger side) by the hinge