Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Honda Jazz Mk4 2020 - => Topic started by: JazzySmith on April 01, 2025, 02:52:43 PM
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Hi all, recently bought my advance sport. Good MPG so far. But one concern is the metal grinding/grating noise when going or reversing in uphill and downhill. Dealer says it's honda and this is the new normal. Dealer checked the brakes and given all clear. But this grinding noise is making me go mad especially in a brand new car. Anyone has had this issue please. Just not convinced that noise is due to brake pads not using asbestos. Many thanks
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I've never had any brakes grinding noise
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Both my mk4 jazzes have been prone to the brake discs rusting rather more than seems to happen to other cars. This can cause some grinding until the surface rust clears. It may be because my car lives outside and its not driven every day. Also hybrids often slow down using regenerative braking rather than actually applying brake pads as you would in a conventional car .So there is less opportunity for brake pads to clean the discs.
I tend to be quite light on brakes anyway even in normal cars. The discs on my Yaris diesel also got quite rusty.
It can help to occasionally deliberately apply the brakes harder than you would normally to clear the rust . It can be quite 'grindy' at first but improves. One method is to apply the electric handbrake whilst on the move (When its safe just flick it up and continue to hold with your finger.) This applies all 4 brakes ,initially quite lightly but increasingly firmly. This can also help reassure you how well the car can be stopped in this way in an emergency.
Possibly unrelated but I found when I first got a mk4 I sometimes applied the electric handbrake slightly before I had come to a complete stop. This can bring you to an abrupt jerking stop .Also the electric brake motors make a noise when applying and can force the suspension to rise and fall a bit . Its a bit weird. At least it was on my 2021 car. Not noticed it so much on my 2024 car but mostly because I now take more time and care when applying the handbrake. I also avoid applying it so often by using brake hold in stop/ start traffic.
It could also be a result of hill start assist that brakes make a slight clunk when they release themselves automatically . I notice it more when driving off downhill but it has never really bothered me.
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Are you sure it’s not a low pitched what I would call growling noise, if so it’s normal I think it’s to alert pedestrians of your presence once over a certain speed in forward motion it disappears ( or at least all other noises drown it out ) :D ;D
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Both my mk4 jazzes have been prone to the brake discs rusting rather more than seems to happen to other cars.
Pardon your lordship; you must blistfully be unaware of what VW likes to shove onto its customers...
After 19 months of ownership and over 16'000 miles (26'000 km) the discs of my Jazz look absolutely "shiny" to me and I have no special grinding noises to report (maybe I should somewhat turn down the music) :D
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Thanks all. It is the metal clunk noise that I hear when releasing or applying the brake. It is very loud and profound when reversing or parking uphill or downhill. In this process, trying to unpick the various sounds folks mention (grinding, grating, screeching, squealing, squeaking, Clunk and Grrk;)
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Thanks all. It is the metal clunk noise that I hear when releasing or applying the brake. It is very loud and profound when reversing or parking uphill or downhill.
Okay, this is helpful!
Might I inquire in which order you normally apply the brakes while parking?
I usually go to P (while fully on the brake pedal) and then apply the "handbrake".
This has never "unsettled" the car in any noticable way when driving off, whatever the incline.
Of course I do the procedure in reverse on starting up:
1) fully apply the normal brakes
2) turn the car on
3) move gear lever to D (or B)
4) release "hand brake"
5) release normal brake and drive
However, I've noticed the car to do a "jerk" when I apply the handbrake first before going into P e.g. at a railroad crossing.
So, I'm thinking the sequence of applying or releasing the various brakes matters.
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Is auto brake hold enabled? If so, try disabling it.
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The only noise I hear from the car while parking is the pedestrian awareness noise
Other than that my Jazz is pretty silent
Personally I’d get your Honda dealer to take a look at it if the noises are unusual
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Just a thought, but could there be an issue with or more of the brake wear indicators? These are small metal tabs that make metal-to-metal contact once the pads have worn down, and the noise is an indication that the pads need to be replaced. If your car is relatively new that shouldn’t be a problem but maybe one of them hasn’t been fitted correctly? You say Honda have looked at it though so hopefully they’ll have spotted this, but how closely did they look?
PS sorry can’t resist this: given the title of the thread, maybe the BRAKE pedal is BROKEN?? :D
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Thanks all. Good spot. my bad spelling of brake. Taking the car to the dealer tomorrow again. Let's see what they say. Will keep you updated. Many thanks.
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As Ninanina says it sounds like the pedestrian awareness noise that all electric cars make, also handbrake and handbrake hold function emits a noise when the actuator engages and releases as I think it may be servo motor controlled, I find that on my own Jazz the handbrake actuator sounds creaky and the car’s attitude changes slightly on application but only when I don’t apply sufficient brake pedal pressure when coming to a stop.
Hopefully it’s nothing serious or anything to worry about, it might be just a case of getting used to your new car and it’s little idiosyncrasies :D ;D
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I only hear the pedestrian noise when I'm reversing up my driveway when it echoes off the house wall
In normal car parks, etc never hear it
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It is not the soft angelic sound that car whispers when reversing . It is the metal clunk noise that I hear especially loud and profound when reversing or parking uphill or downhill
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Does the sound occur when you switch the gear selector from P to any another gear on a hill? If yes, that would indicate that the weight of the car was resting on the parking pawl, which would not be the recommended way to park on a hill. When parking on a hill, it would be better to first apply the parking brake, then switch gear to N and release the brake pedal, and finally switch the gear selector from N to P. Then the parking brake holds the weight of the car, while the parking pawl holds very little weight and is mostly acting as a backup brake.
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It is when I release the brake to drive or when I release the brake after parking. It is similar to the sound I used to hear when dry steering my prev 2004 jazz (not the tyre noise but the metal grinding).
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Thanks all. Good spot. my bad spelling of brake. Taking the car to the dealer tomorrow again. Let's see what they say. Will keep you updated. Many thanks.
What did your Honda dealer say about the noise?
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You don’t really need to apply and release the handbrake manually. Set it to come automatically release when you start to drive and to automatically come on when you turn the power off. Also press auto hold before you start driving and when you stop this holds the car until you power down and handbrake comes on. I’ve driven the Jazz for 3 years in this way and never had anything but the normal sound of the servo actuating the brakes when they come on.
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Like others i only notice the motor sound when the handbrake / brake hold is applied . Have yet to detect any rumbling from the brakes . I find the jazz brake characteristics super smooth and very progressive -easy to stop to standstill very softly. All adds to the driving enjoyment in my opinion!!
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You don’t really need to apply and release the handbrake manually. Set it to come automatically release when you start to drive and to automatically come on when you turn the power off. Also press auto hold before you start driving and when you stop this holds the car until you power down and handbrake comes on. I’ve driven the Jazz for 3 years in this way and never had anything but the normal sound of the servo actuating the brakes when they come on.
A couple of issues for me :
1 ) Brake hold produces, annoying for some, permanent brake lights when stopped
2) Auto handbrake - After washing the car and parking in my garage, if I apply the handbrake the pads lock onto the discs and there is a loud bang from all corners and lurch forwards next time out. I just put it in P - no problem next time out
Not unique to the Jazz, all my previous cars have locked up after washing and the discs get surface rust
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Not unique to the Jazz, all my previous cars have locked up after washing and the discs get surface rust
I always drive my car after washing to remove excess water from the brakes to prevent disc corrosion or pad sticking.
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I'm just lazy, wash & polish then reverse into garage
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I’m having my Jazz washed at a local hand car wash place at the moment; they are very good and quite cheap
I have about a mile to drive home afterwards which should be enough to clean up the discs from any remaining moisture
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I find the car wash quite therapeutic when I get round to it. I take quite a few hours doing it top to bottom, inside and out, nothing gets missed
A neighbour had her black BMW micro scratched all over by the local car wash squeegee they used on the paint
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Hi All, thanks for all your inputs. Quick update. We took the car to the dealer.The technician recreated the noise by releasing the brake very very slowly even on a flat surface. Apparently this is how new hybrid Hondas are designed. He assured us that it won't cause any problems. So that's that.
But one thing which I came to know was that the brake pads used in hybrids are 9mm thickness. I thought 12mm was the standard.
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But one thing which I came to know was that the brake pads used in hybrids are 9mm thickness. I thought 12mm was the standard.
Glad you were able to sort out the "grinding" noise!
imho it will take you "quite a few miles" to run (or better brake) through the 9mm brake pads as the hybrid Jazzes regenrative braking system lessens the strain on the normal brakes quite a bit!
So, unless you are a truly "sporty" driver (in which case you let yourself mislead by the car's name), I wouldn't be overly concerned about brake pad wear! - It is more common for the brakes to degrade by not using them enough (why certain forum members recommend to occasionally use the emergency stop feature to "clean" the discs by lifting and keeping lifted the "handbrake" switch, which will apply the brakes on all wheels simultanously - please don't try this at elevated speeds or while in traffic!))
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I don't understand rusty discs lasting that long
On many cars I've had, after washing, the discs do go orange after an overnight garage stand, surface rust. As a result I do initially get grinding when going along the driveway (all auto box so using the brakes to crawl) but once out on the road the surface rust soon dissipates.
At my old house I had 1 junction where I normally had to slow or stop. Then a 50mph clear carriageway with a petrol station at the end.
So I braked slightly down the driveway, then light braking at the junction, then braking in the petrol station by which time all grinding had gone.
Looking at the discs they were all shiny silver again
My theory is that the pads run very close to the discs and the slight heat is all that's needed to remove any surface rust
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But one thing which I came to know was that the brake pads used in hybrids are 9mm thickness. I thought 12mm was the standard.
Glad you were able to sort out the "grinding" noise!
imho it will take you "quite a few miles" to run (or better brake) through the 9mm brake pads as the hybrid Jazzes regenrative braking system lessens the strain on the normal brakes quite a bit!
I have quite a steep hill near to where I live, and because I am not brave enough to lift the handbrake lever whilst on the move, I flip the “gear lever” from drive into neutral, and coast down the hill at perhaps 40 mph, with a medium application of the foot brake. (Yes, I am aware of the law regarding coasting in neutral)!
I will be driving sheep over Tower Bridge for my next breaking of the law!
The discs are still not as bright and shiny as most other cars that I look at.
Great car though, …..and that includes the brakes.
So, unless you are a truly "sporty" driver (in which case you let yourself mislead by the car's name), I wouldn't be overly concerned about brake pad wear! - It is more common for the brakes to degrade by not using them enough (why certain forum members recommend to occasionally use the emergency stop feature to "clean" the discs by lifting and keeping lifted the "handbrake" switch, which will apply the brakes on all wheels simultanously - please don't try this at elevated speeds or while in traffic!))
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Just had mine serviced & brake pads worn down by 10% @ 24k miles, so may need replacing after 125k miles but I won’t worry as I’m only keeping for 12 more months. ;D ;D
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...as I’m only keeping for 12 more months. ;D ;D
O? Why? (https://www.cheesebuerger.de/images/midi/konfus/c078.gif)
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Only keep my cars for 3 years before changing. :o ;D
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I used to when I was doing 11k a year but now I'm doing about 1k a year that would be pointless