Passenger Side Dashboard Rattle - Solved!

[GODZILLA]

I've got a rattle somewhere on the passenger side. Next time I have a buddy in the car I'll have them push on various panels to see if I can get it narrowed down, but I'm glad to have a little direction from this post. The plastics already feel pretty cheap in the '24, so the rattles are really making me miss my 2019 Tundra.

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[SWONT2.7]

I've been placing tiny pieces of this stuff in various places as shown by the OP. I had a headliner rattle and placed a pinky sized piece of the EVA foam at the front edge of the healiner which solved that particular rattle. Still chasing a few others unfortunately.
https://www.amazon.ca/OCEANBROAD-Se...232119011f28bca2f34ad&gad_source=1&th=1&psc=1

 

[sbi]

Now if someone can find a way to stop the passenger's seat back rattle when it is not occupied, he/she might win a Noble prize.

 

[Graygoose2021]

Now if someone can find a way to stop the passenger's seat back rattle when it is not occupied, he/she might win a Noble prize.

drove 140 miles back and forth to another town yesterday, drove me crazy!

 

[SWONT2.7]

Now if someone can find a way to stop the passenger's seat back rattle when it is not occupied, he/she might win a Noble prize.

You've probably already ruled out the seatbelt rattling off the plastic but if not I put EVA foam tape on the buckle where it contacts the plastic and the rattle is gone. If the kids toss off their belts and they don't sit properly they can chatter.

 

[JCsTruck]

Both my A-pillar trim pieces rattle in the same spot as yours. I‘ve known about it for a month now but haven’t tried to fix it yet because it has been too damn cold out. I see 60-degree temps in the near future so I may pull my A-pillars and install some foam tape. Seems like every other vehicle I own has rattling A-pillar trim.

I’ve owned several Mazdas and they were the worst They sound like the Rattle-A-Trap lipless crank bait lures I used when fishing to catch bass when driving down the road. ? ?

 

[sbi]

You've probably already ruled out the seatbelt rattling off the plastic but if not I put EVA foam tape on the buckle where it contacts the plastic and the rattle is gone. If the kids toss off their belts and they don't sit properly they can chatter.

It's definitely not the seatbelt, it is the seat back itself. If I hold it, the rattle stops.
It is coming from somewhere on the lower part close to the center console (left side of the seat). I am not sure if I want to take the cover off, but it absolutely drives me insane.
I think that different seat height and back angle make some difference but didn't find the perfect spot yet.

 

[HammaMan]

Now if someone can find a way to stop the passenger's seat back rattle when it is not occupied, he/she might win a Noble prize.

Some seat trims have mass dampers in them (in the passenger seat) My platinum seats had one, lariat and XLT did not.

 

[aviator]

It's definitely not the seatbelt, it is the seat back itself. If I hold it, the rattle stops.
It is coming from somewhere on the lower part close to the center console (left side of the seat). I am not sure if I want to take the cover off, but it absolutely drives me insane.
I think that different seat height and back angle make some difference but didn't find the perfect spot yet.

Mine Is pinpointed to the right side of the seat. It is side to side motion that made the sound when no one's in the seat.

 

[sbi]

Some seat trims have mass dampers in them (in the passenger seat) My platinum seats had one, lariat and XLT did not.

What is a mass damper?
It definitely sounds like a loose, flexible piece of something is vibrating very fast against something else.

 

[HammaMan]

What is a mass damper?
It definitely sounds like a loose, flexible piece of something is vibrating very fast against something else.

In the top of the seat at the headrest it's a rubber thing

 

[sbi]

In the top of the seat at the headrest it's a rubber thing

I am 99.99% it's not that.

 

[HammaMan]

I am 99.99% it's not that.

That's there to prevent seat rattle

 

[sbi]

That's there to prevent seat rattle

Well, I guess it's not doing its job

 

[HammaMan]

Well, I guess it's not doing its job

I think it disappeared in 2022 and was only in halo trims

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