Is this a normal sound regarding the brakes?

[DianneWhitmire]

J - I'm concerned about this. I'm unsure if I have noticed a louder brake sound on a V package with the larger wheels... but I really would like you happy with your car... do you have time to bring it by at all? Let the service manager & I take it out and see??? I know the V package cars have more road noise...those are pretty large tires for a small car... but brake noise? That concerns me.
Dianne

Originally Posted by StarBrite310

This sound is still really bothering me. Unless the music is really loud, the sound drives me nuts. It's really the only complaint I have on the car, except for the blind spots in the back where my Gen II had none. The windows are waaaay smaller on the Gen III.

Anyway, this break sounds annoys the hell out of me

[Vincent]

Originally Posted by HTMLSpinnr

Additionaly, you may hear a pump buzz from time to time that is part of the braking system - this pump builds up hydraulic pressure that is used for braking, ABS, traction control, etc.

I hear an occasional loud buzz noise that sounds like it's coming from outside the drivers door; is that brake pump?

[DianneWhitmire]

Is this sound right after your car turns off?

Originally Posted by Vincent

I hear an occasional loud buzz noise that sounds like it's coming from outside the drivers door; is that brake pump?

[herbbie1]

I have the same "air" sound coming from my brakes as well. It is not the under the hood electric motor noise you get on occasion but instead a noise under the dash as if air is being released. I can sit in my car with the power off and pump my brake pedal and have the sound repeat over and over every time a step on the pedal. Doing this a few times in succession causes the electric motor sound under the hood to kick on every 6 or so pumps.

When driving, I hear the noise for the first few times I brake and it seems to go away after that. The noise is obnoxious and easily noticable. So much so that it seems as if this were normal for all 2010's it would be a common complaint.

I guess I will wait to see other peoples experiences before going to the dealer.

[HTMLSpinnr]

Originally Posted by herbbie1

I have the same "air" sound coming from my brakes as well. It is not the under the hood electric motor noise you get on occasion but instead a noise under the dash as if air is being released. I can sit in my car with the power off and pump my brake pedal and have the sound repeat over and over every time a step on the pedal. Doing this a few times in succession causes the electric motor sound under the hood to kick on every 6 or so pumps.

That be the sound of pressurized hydraulic fluid flowing as you operate the pedal - nothing to be concerned about.

[StarBrite310]

The sound has gotten worse IMO and is annoying me so much that I am bringing in my car on Thursday to have it looked at. My 06 Prius NEVER made a sound like this.

[xvs]

I also hear a sound on braking, but it's not airy: it's a very high pitched whine.

And it's really annoying.

Is that a normal sound?

[qbee42]

Originally Posted by xvs

I also hear a sound on braking, but it's not airy: it's a very high pitched whine.

And it's really annoying.

Is that a normal sound?

The high pitched whine comes from regenerative braking and is normal.

Tom

[a64pilot]

To be sure it's the regenerative braking making the noise, put the car in neutral when decelerating and the noise should stop. I don't think you get regen braking in neutral. If the noise is still there when stopping in neutral, it's not the regen braking making the noise, it's something else.