I'm not sure what this part is called. There is a plastic part directly in front of the rear tire, I'm guessing it's a air deflector? Anyhow, it's loose. I can not see under the car very well. It is attached with one screw and is pivoting loosely. I'm guessing there should be some type of fastener near the inner fender. Just wondering if this has happened to anyone else. is there a special clip? of just a bolt missing? I've been looking for a diagram online but cant find one.
I think I just found what I need. The part is called a deflector plate and I'm missing a clip/fastener #9046707222
Yep, you got it. You'll need that metric screw, the clip should still be there. Lost the inner passenger side screw - lock-tie a replacement M4 from my junk draw. A few week later, the same thing happens to my driver's side rear. No more issues after I lock-tie those screws in place.