Many have experienced this issue and found it to be a loose seat bolt. Check them out.If i put my arm on the back rest of the seat it stops, very little pressure needed. I just can't pinpoint exactly where it's coming from
I checked all the bolts I could find, it helped a little, but still there. I looked at that thread and you mentioned heated/cooled seats which my car didn’t have. Harnesses are all tied up securely under seat too. I don’t know :(Aside from the loose seat bolt, it also could be the seat’s internal TED and associated wire harness. This may help:
https://www.mustang6g.com/forums/threads/2019-passenger-rattle-noise.127742/#post-2650592
Search my name I went through a whole ordeal chasing down a passenger seat click only when my fiancé was in the seat. Ended up being a bolt that bolts to the car.Has anyone experienced their passenger seat rattling on anything but perfect asphalt? It's very annoying! I'll probably bring this up along with my reverse camera not working anytime it's hot. car is a 2020 GT under 1000 miles
Try putting your hand on the middle of the back seat when it rattles and see if that stops it, could be something loose and there's not much padding on the back so you can probe around to see if that quiets it anywhere.At around 6,000 miles now my car has also developed some sort of rattle on the passenger side. Happens regardless of whether a passenger is sitting in the seat or not, but not been able to figure out where it's coming from so far. Sometimes it rattles on the way back home, sometimes it does not rattle on the same way back home.
No heated/cooled seats here either.
I meant to update this, I found the cause of the rattle. the 4 bolts that bolt the seat to the car were all tight, so i had my wife shake the seat back, because you could replicate the sound by grabbing the top of the seat and pushing on it, while I was looking at the seat base with a good light. it ended up being the bolts that go through the side pieces that attach to the seat back hinge area. I snugged them all and the rattle has gone away. the outer side, closest to the passenger door, was actually loose.Search my name I went through a whole ordeal chasing down a passenger seat click only when my fiancé was in the seat. Ended up being a bolt that bolts to the car.
I did not have this issue in my 2019, but did in my 2020.
correct, the plastic covers have to be removed to get to the boltsJust to be clear, the bolts that hold the seatback frame to the seat frame were loose? Did you have to remove anything to get to them? I don't think they're visible, but would have to check. Thx.