I just got a new 2015 Fit about two weeks ago, and there is this weird vibrating/low buzzing sound that sounds like it's coming from the back left side door. It's driving me crazy... You can hear it even if your driving slowly...

Any ideas?

 

Maybe the window is rattling? Have someone put some pressure on the glass while you are driving and see if that makes it stop.

 

Yeah I was trying that and it seems to be coming from the ceiling... If I press up on the material on the ceiling it stops for a bit... No idea how to fix that though