# Can you help me identify this Prius brake noise

**URL:** <https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542>\
**Category:** Maintenance/Repairs\
**Tags:** noises, prius-v, brakes, toyota\
**Created:** [July 6, 2023, 1:23pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542 "2023-07-06T13:23:58Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![Bcw561\_185884](https://avatars.discourse-cdn.com/v4/letter/b/dbc845/32.png) [@Bcw561\_185884](https://community.cartalk.com/u/Bcw561_185884)\
**Post date:** [July 6, 2023, 1:23pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/1 "2023-07-06T13:23:58Z")

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Hello, maybe 6-7 months ago this noise started. Someone was renting my car for the past 5 months and it seems to still be working fine, but my dad has me concerned about the long term effects. Can anyone identify this issue so I can get it fixed (around 3 - 5 second mark)

[![](https://global.discourse-cdn.com/cartalk/original/3X/5/2/52a2ebfa02aa67d487b9e536e406464bd92307e8.jpeg "2013 Toyota Prius Brake Noise") ](https://www.youtube.com/watch?v=x0cwvzwoKw0)

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [July 6, 2023, 2:32pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/2 "2023-07-06T14:32:12Z")

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Any reply I give about the sound would be a poor guess that would not help you at all. Why?

Because you will take it to a shop for the work. The proper way to approach the shop is to tell them what you are experiencing and let them diagnose and repair the problem not tell them what to fix.

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [July 6, 2023, 9:26pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/3 "2023-07-06T21:26:23Z")

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> [@Bcw561\_185884](#):
>
> my dad has me concerned about the long term effects [of ignoring a brake noise].

One of those effects – besides the car might not stop quickly enough in an emergency — if a brake pad is worn out and scraping the rotor, possible brake rotor damage. If worn pad is replaced with a new before that happens, pretty good chance you could save some money. Beyond that, Prius braking problems could involve the hybrid drive train as well, could be very expensive to repair.

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**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\
**Post date:** [July 7, 2023, 1:46pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/4 "2023-07-07T13:46:38Z")

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Do you get this noise when braking gently or heavily? Your Prius has regenerative braking and uses that exclusively unless you brake heavily and the regenerative system can’t handle the load. If your Prius-V has regenerative brake settings, set it to the heaviest regen level and see if the noise occurs when you just take your foot off the gas.

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**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\
**Post date:** [July 7, 2023, 2:12pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/5 "2023-07-07T14:12:03Z")

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On another note, you do have the proper insurance in place, right? A normal policy is unlikely to cover renting your car out.

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**Author:** ![Bcw561\_185884](https://avatars.discourse-cdn.com/v4/letter/b/dbc845/32.png) [@Bcw561\_185884](https://community.cartalk.com/u/Bcw561_185884)\
**Post date:** [July 7, 2023, 10:32pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/6 "2023-07-07T22:32:20Z")

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The brake pads are still pretty new, so I don’t believe it’s the them

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**Author:** ![Bcw561\_185884](https://avatars.discourse-cdn.com/v4/letter/b/dbc845/32.png) [@Bcw561\_185884](https://community.cartalk.com/u/Bcw561_185884)\
**Post date:** [July 7, 2023, 10:34pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/7 "2023-07-07T22:34:06Z")

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I believe the noise is usually when the break is pressed around half way down. I haven’t heard of regenerative breaking, I’ll take a look

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**Author:** ![Bcw561\_185884](https://avatars.discourse-cdn.com/v4/letter/b/dbc845/32.png) [@Bcw561\_185884](https://community.cartalk.com/u/Bcw561_185884)\
**Post date:** [July 7, 2023, 10:35pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/8 "2023-07-07T22:35:37Z")

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Lol. The platform has some kind of insurance as well. I’ma have to double check on all that though

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**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [July 8, 2023, 2:39am UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/9 "2023-07-08T02:39:31Z")

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I would also be cautious about renting out a vehicle with a known issue that has not been properly repaired and or diagnosed as renting out an unsafe vehicle is a HUGE liability no matter what insurance you have, if someone is hurt they will not only sue the ins company but also sue you, Well in the USA anyway…

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [July 8, 2023, 3:18am UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/10 "2023-07-08T03:18:55Z")

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Poor lighting in the video, can’t see how fast the car is moving or from what area you are focusing on the noise.

Noise from the wheels? From the brake pedal area? If you can replicate the noise while stopped, the hydraulic brake actuator is noisy.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [July 8, 2023, 3:07pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/11 "2023-07-08T15:07:23Z")

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> [@Bcw561\_185884](#):
>
> I haven’t heard of regenerative breaking, I’ll take a look

Yes, you should definitely look at your Owner’s Manual, in particular the part where it descibes the function of Regenerative **Braking**. In case you weren’t aware of it, most of the braking on a hybrid, a plug-in hybrid, and an EV is done by the regenerative braking system, which is why the **brake** pads tend to last such a long time on this type of vehicle.

> **[Regenerative braking explained](https://www.delphiautoparts.com/en-gb/resource-center/article/regenerative-braking-explained)**
>
> One of the benefits of hybrid and electric vehicles (H/EVs) is their potential to recuperate braking energy, otherwise known as regenerative braking. Here we explain how this energy-efficient system works? And what this means when it comes to...

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<div class="post-metadata">

**Author:** ![Bcw561\_185884](https://avatars.discourse-cdn.com/v4/letter/b/dbc845/32.png) [@Bcw561\_185884](https://community.cartalk.com/u/Bcw561_185884)\
**Post date:** [July 11, 2023, 1:45pm UTC](https://community.cartalk.com/t/can-you-help-me-identify-this-prius-brake-noise/191542/12 "2023-07-11T13:45:44Z")

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There’s no video. I’m holding my phone while in the driver’s seat, holding it under the steering wheel
