2016 nissan sentra leaking floorboard passenger side

Go to the dealer. Your truck warranty its 100k miles bumper to bumper...

I have issues with my 2017 Nissan Titan it sometimes doesn't start you push the button does nothing sometimes you have to sit there for 2 or 3 minutes before it works and it just happens sometimes don't know why.

Probably the passenger side drain under the louvered cowling that covers the wiper arms. You have to raise the hood to remove it. Don't know about the Sentra, but you probably have to remove a couple of push pin hold downs to get it off.