Brake noise, do you have it too?

I would recommend you take it to your Authorized Toyota Dealer for proper diagnosis and repair if necessary.

 

Oh f'krissake. Dealer, schmealer. In support of possibly one of the
most common newbie questions -- if anyone with fewer than, say, 100
posts asks this, then it's the accumulator pump, period. If the
poster says "I know an accumulator pump when I hear one and this
ain't it", then start worrying.
.
Zerk -- it's the accumulator pump. Translation: braking is done
"by wire", meaning that your foot doesn't push hydraulic pressure
out to the wheels but a bunch of electronics and valves do. But
that system has to get pressure from somewhere, so what the Prius
has is an electric hydraulic-fluid pump that builds up a bunch of
pressure and holds it for whenever it's needed. As that pressure
gets used up or bleeds off, the pump automatically runs to keep
it up to a usable level.
.
If you want to hear a lot of the same noise, stop the car someplace
quiet and pump the brake pedal slowly but firmly, up and down.
You'll hear a whole lot of pump activity as it keeps up with usage.
.
You may also hear a burst of it just when you put your foot on the
brake to turn on the car, too.
.
Now, after all that, if that *isn't* the noise you're hearing,
suddenly it gets more interesting...
.
_H*

 

<div class='quotetop'>QUOTE(hobbit @ Aug 18 2006, 07:47 PM) [snapback]305650[/snapback]</div>

Just got mine, and I hear that noise, too.