My 2018 Honda Fit Sport is finally starting to show it's age. I parked it next to our sprinkler yesterday and now the passenger side carpet is wet under the floor mat. It looks like its coming out of the front passenger door but I'm not 100% sure. Anyone else having this issue? Or know of the fix? Thanks.

 

It's 3 years old?!
How's that "showing it's age"

 

Paint is chipping due to bad paint from Honda. Interior is leaking water. Car has multiple rattles at start up.

That is just a few of the new problems it's been having.

 

Mine did that when it was new. The dealer replaced the s shaped piece of weatherstripping in the passenger door, been fine since.

 

I can honestly say my maiden voyage with a Honda product has been more like my Volvo S60 experience than my Lexus IS350 experience.
Despite the dealers willingness to help me out, this will be my first and last Honda product (considering I have extended warranty until Oct 2023).

 

Check the weatherstripping would be the easiest thing.

Check the drain holes in the litter part of the door to see if they are blocked.

You'd have to take the door panel off, but there's a plastic sheet to direct water. It's sealed by this black goo so make sure that good has a good seal.