Flappy seat belt

I like to drive with the windows down and sunroof open now that the weather's nice, but any time it's windy outside or I'm going faster than about 40mph, the passenger side seat belt flaps against the panel like a machine gun. It doesn't seem to matter if I move the buckle up or down, it still happens. Anyone come up with any kind of solution to this?

 

Buckle it.

 

I got nothing. I've actually never experienced this, with many trips sunroof and all windows down, from 30-80 mph.

 

Figure out where the buckle is on the B-pillar and stick a Ø3/4" X .250" rare earth magnet on the inside of the plastic. Comes loose when you give it a yank and will stay where it's supposed to.

 

I usually leave the passenger window up about halfway because you actually get more breeze that way. I learned this when the AC quit on my '03.

Otherwise, whenever I have something rattling, I just keep opening and closing windows until it stops.

 

Simple and effective.

 

Find the command strips that look like a clip

 

Put some Mud Tires on your 4Runner. You won't hear anything over the howling of your tires.

We traded our 2020 Rav4 TRD in for a 2021 Highlander XSE. The Highlander has little clips to lock the rear seat belts against the pillars. Pretty neat.

I think this is the part number:
https://parts.toyota.com/p/Toyota_2...-Left--Right--Rear/63331045/73371AE010B2.html

 

This looks like the most interesting option. I'll give this a shot and see if it helps. Thank you!

 

The clip? Or the mud tires?