squeaky brakes after rain or carwash

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Shooter8, Sep 20, 2025.

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  1. Shooter8

    Shooter8 Junior Member

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    2013 Prius V, 160K. We recently replaced the fluids, brakes, and head gasket. Head gasket was a biggy.

    Anyway, we noticed that the brakes squeak lightly for several miles after some rain even while brake pedal is not depressed even if the car was parked inside during the rain.

    We have heard of several sources of this noise, including light rust on the rotors, which doesnt make sense: the rotors on my pickup do not squeak under similar conditions

    Is there a definitive causes of this annoyance?
     
    #1 Shooter8, Sep 20, 2025
  2. bisco

    bisco cookie crumbler

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    doesn't a correct brake job include some kind of anti squeak clip or something?

    i doubt it is rust, but you can clean them up with light braking in neutral if needed. you can't compare a hybrid to a full gasser, because the gasser uses the pads all the time when braking, thus, no rust.
     
    #2 bisco, Sep 20, 2025
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  3. Mendel Leisk

    Mendel Leisk MMX GEN III

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    If the noise is after the cars been in rain, or hosed down, and then sat for a day or two, it’s likely rust forming on the rotors. Our ‘10 has always been this. Clears up with a mile.
     
    #3 Mendel Leisk, Sep 20, 2025
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