Rattling when wheel goes over bump -- disc brake hardware?

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Tom Mulloy, Aug 24, 2022.

  1. Tom Mulloy

    Tom Mulloy Junior Member

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    2021 Prius LE with 12,000 miles. Live in Wisconsin where the roads are not the greatest. Over the summer with the windows down I have noticed noise/rattles when one of the wheels hits a bump, indentation, whatever. This occurs with all 4 wheels. Brake hardware rattling or other issue? Thanks.
     
    #1 Tom Mulloy, Aug 24, 2022
  2. bisco

    bisco cookie crumbler

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    welcome!

    does the sound area change depending on the wheel that hits?
     
    #2 bisco, Aug 24, 2022
  3. Tom Mulloy

    Tom Mulloy Junior Member

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    It's hard to tell the difference for each wheel. I was just wondering if noisy disc brake hardware is a known issue.
     
    #3 Tom Mulloy, Aug 25, 2022
  4. bisco

    bisco cookie crumbler

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    not that i recall reading, but anything is possible. are you still under warranty?
     
    #4 bisco, Aug 25, 2022
  5. CooCooCaChoo

    CooCooCaChoo Senior Member

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    I would definitely take it in to the dealer and have them check the brakes/suspension. Offer to drive the mechanic so they can hear the sounds it makes.
     
    #5 CooCooCaChoo, Aug 26, 2022
  6. xliderider

    xliderider Senior Member

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    The Prius is a heavier than normal car due to the heavy traction battery, motor/generator, and all the hybrid hardware, with minimal sound insulation to save weight.

    I'd say that the sounds you might be hearing is normal, and that you never noticed the sounds before with the windows rolled up. Also, the fact that all four wheels are making the same sounds. The odds of something wrong with all four wheels/suspension is low.

    Posted via the PriusChat mobile app.
     
    #6 xliderider, Aug 26, 2022
    dacoobob likes this.
  7. bisco

    bisco cookie crumbler

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    and check the tyres pressure
     
    #7 bisco, Aug 26, 2022
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