Well my window's messing up on my passenger side. It jus won't go up sometimes unless I slam the door close. So I understand this should be under warranty, but theirs a problem. I've put Dynamat on my doors, so can they deny warranty because of this???

 

You should be fine. Take it in and get your window repaired.

I could see the dealership giving you crap if you did something radical to your doors (i.e. Scissor doors. custom door panels, etc.), but you should be fine.

 

I had the same problem with my drivers side window. It turned out to be a faulty window motor and the dealership replaced it under warranty... it was a pain to diagnose though (because the problem was intermittent).

 

Lots of people are having the same issues.
The dealer**** may give you crap about the dynamat but you should be able to fight it and be fine (fight it nicely though, dont burst out in anger)

https://g35driver.com/forums/showthr...7&page=1&pp=20

 

Hurry up and get it done, i had the same thing in my passenger door and it somehow screwed up the regulator. I had to wait about 2 weeks to get the regulator since it was backordered