Clicking Sound on Regen Braking

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Notquiterite, Feb 17, 2017.

  1. axle2152

    axle2152 Active Member

    Joined:
    May 14, 2013
    114
    118
    0
    Location:
    North Carolina
    Vehicle:
    2016 Prius
    Model:
    Two
    Yep, that's pretty much how mine behaved. Hopefully it won't be a reoccurring problem with these, not exactly cheap to fix out of warranty and that being a powertrain item only 60,000 miles.
     
  2. david elm

    david elm New Member

    Joined:
    Jun 14, 2018
    2
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    0
    Location:
    Norway
    Vehicle:
    2010 Prius
    Model:
    Prime Advanced
    Same problem with my gen 3, (115.000 km) I will try out some different grease for the balljoint, maybe it will shut it up :) ...
     
  3. liquidtenmillion

    liquidtenmillion Active Member

    Joined:
    Jan 30, 2016
    138
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    Location:
    Easley, SC
    Vehicle:
    2017 Prius
    Model:
    Three Touring
    My 2017 Prius 3 touring has been doing this for about 2000 miles or so now. It came on relatively suddenly as it didn't happen for the first 25,000 miles or so, but also I can't pinpoint it exactly since when it first started happening it sounded to me like the window was vibrating while stopping or something. But there is no doubt in my mind it is the exact same problem that several(though not all, but most of the complains in this thread) people in this thread have reported.

    It sounds just like the videos posted. It only happens during gentle regen braking, not hard braking, not braking in neutral, not just driving normally, not coasting to a stop. It varies with the velocity of the car(it clicks slower the slower the vehicle gets.) I can regen brake and start hearing the noise, and if I let off the brake it goes away completely.

    My dealer and all the ones around me are notoriously terrible to deal with, I've had them ruin transmissions in the past with routine maintenance and complete buffoonery like putting 2x as much transmission fluid in, so I have no intention on getting them to work on this. I don't even trust them to change the cabin air filter properly. My main concern is whether this is an annoyance or will constitute a catastrophic problem.

    It is not a standard CV joint issue, it does not click while turning, there is no sensation that can be felt, happens no matter the position of the steering wheel.

    It also seems like those who get the axle replaced have the noise come back later. To me I wouldn't be surprised if this eventually occurs in all GEN 4 priuses(though it did NOT occur in my GEN 3) eventually and just some people can't notice it, since some people here can't hear it in the videos and I can hear it clear as day in both the videos and in real life(though I know what I'm looking for), and that it came back after replacement. (What are the odds of most people who have had this fixed getting 2 bad axles on a vehicle where most people get zero, seems to me the problem is far more widespread).
     
    #123 liquidtenmillion, Jul 12, 2018
    Last edited: Jul 12, 2018
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