I was washing my car last week and when i got to the back of the car, the trim on the rear passenger side door was hanging on by one clip, its pretty loose, Is there any way to fix that? if not where can i find a replacement?

 

I've read some posts on the forums where people just used double sided automotive tape to secure it back in place. The legit route would just be to order another from your local Nissan dealer parts department but the double sided tape should be fine.