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Fixed Front Passenger Metallic Buzzing/Rattle In Cabin

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Animal Mother, May 21, 2023.

  1. Animal Mother

    Animal Mother New Member

    Joined:
    Mar 18, 2023
    20
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    Location:
    Georgia
    Vehicle:
    2016 Prius
    Model:
    Three
    Shortly after purchasing my 2016 Prius Three I noticed a very annoying buzzing rattle that only seemed to occur when driving at highway speeds over rough pavement. I thought it might be the front passenger strut assembly as the sound seemed to originate from behind the glovebox towards the front wheel of the car, and a few years back I had a defective rear strut installed an a CR-V that made a similar sound.

    After a few weeks of putting up with this I had my wife drive the car on the interstate while I dropped the glovebox and felt around in the area behind the glovebox and found a couple of sheets of stamped steel on the right side wall of the cabin that had a fair amount of vibration coming from them. These sheets were about a quarter of an inch apart and apparently over rough pavement they were vibrating enough to actually touch which was causing the metallic buzzing that I was hearing. I cut a couple of layers of rubber from an old bicycle inner tube that I cut and wedged into into the gap between the sheets and secured with electrical tape.

    This is completely solved this rattle so I thought I’d share as I’m probably not the only person with this issue. The cabin is much quieter at speed. I would have taken some before and after pictures but had no idea if my fix would work so I just have after photos. Hope this helps.

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    bisco likes this.
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,391
    48,774
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    well done! i didn't think gen 4 had any rattles :(