Clicking Noise When Braking in Reverse — Is This Normal

Discussion in 'Gen 5 Prius Care, Maintenance and Troubleshooting' started by priusasa, May 6, 2025.

  1. priusasa

    priusasa New Member

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    Hi everyone,
    I have a 2023 Prius (5th gen) with about 52,500 miles. I've noticed a clicking or tapping noise every time I brake while reversing slowly (around 1–3 mph). The noise only happens when the car is already moving in reverse and I press the brake — not when shifting into reverse.

    I took it to the dealership and the technician said he heard it too. He told me it’s normal and probably caused by slight movement of the brake pads. He applied some lubricant and said it should be reduced now, but honestly, I still hear it clearly and it doesn’t seem right to me.

    Anyone else experiencing this? Is this really “normal,” or should I push the dealer further?

    Thanks!
     
  2. ChapmanF

    ChapmanF Senior Member

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    The pads do move. They have 'ears' that are held loosely in channels in the caliper bracket, so they can move toward the rotor and away. Being held loosely, they can also move a tiny bit in whichever direction the rotor is turning when they meet it.

    They are held in "support plates" (a/k/a the "fitting kit"), little springy clips that fit in the bracket channels, and the pads fit into them.

    Describing earlier generations (I haven't worked on a 2023's brakes, but expect this is similar), if you look at a set of those "support plates", they aren't all identical. They are pairs, where one of each pair has a longer bent tab sticking out. When you're careful to install them as the picture shows, the longer tab works like a spring and holds the pads pushed in the direction the rotor turns moving forward. That way when you brake moving forward (which is, after all, most of your braking), the pads are already as far that way as they can go, so there is no click.

    When you brake while moving in reverse, the pads therefore have a little room to travel the other way, and make a click.

    Ordinarily, as time passes and things get dirtier / stickier / rustier, that nice reverse click gets a little softer, or maybe stops being heard at all. If you're hearing it nice and clearly, it suggests your brakes are clean and moving nicely, as if they were recently worked on, or if they weren't, have at least been staying in a nice free-moving condition.
     
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  3. Georgina Rudkus

    Georgina Rudkus Senior Member

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    I would clesn and the caliper slide pins to see if they are sticking. If the outer and inner pad have worn to different remaining thicknesses, it would be a clear indicator of sticking slide pins.
     
  4. priusasa

    priusasa New Member

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    This is what I was imagining but my main concern is this: Do 5 gen prius users has the same sound?
     
  5. DOHCtor

    DOHCtor Member

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    To be honest, i never heard this before it started like.. 2 weeks ago? At about 51k km on the clock.. It does something similar on my 300k miles Civic Si, but the calipers have been sandblasted more then once so there is a slight slack and once the pad had taken it's place, it won't do it again.. The Prius however, can repetedly do it.. will tell that to the service dept. while the car is still on it's warranty..
     
  6. priusasa

    priusasa New Member

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    Let u sknow the updates. My Dealer said its normal and I am planning to go another dealer. Mine is 52k mileage
     
  7. DOHCtor

    DOHCtor Member

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    Will do. Drove the Civic for 5 days straight as it was sunny but rain is forcasted for the next 3 days so i'll take the Prius now..

    P.s. Definitely NOT normal. It never did this before..
     
  8. PhoS

    PhoS Active Member

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    Mine does it , it's normal.