New brakes squeaking/creaking

Not an expert here but it's not uncommon for new brake pads to squeak until they are worn in. There maybe more than one reason for this and I will leave it to others to give you more informed advice.

 

Did a prius experienced mechanic do this work?

I just ask because there are a few differences then regular non hybrid brakes.

You could try (safely) to drive and pop it in neutral and brake gently to see if anything clears up
May take quite a few times to get them to conform nicely.

In the rear, there is the caliper piston, with an X pattern which has to seat correctly to the brake bad.
Possible if things dont clear up that this is off.

You could also let the ones that did the work to check them, as if anything is wrong,
they would be the one to make sure it is right.

 

How many miles on your Prius?

Any reason for the brake work?

How many miles have you added since the brake work?

 

You need to take it back. They probably didn't put the anti-squeal plates on the pads.
Because usually pads do not include new ones. They should have reused the old ones.
You just clean them up. And they probably didn't put any anti-squeal on the caliper or pads.
And more than likely, didn't clean and re-lube the slide pins.

 

Well, yes and no.

The fronts are pretty straightforward. The caliper pistons are plastic ; you want to use caution if pushing them back: have uniform bearing on the full perimeter of the piston, a piece of plywood, the old pad, whatever.

The rears are a little tricky: the integrated parking brake mechanism requires piston orientation to be so that the cross pattern on the face is like an "X", and the brakes must be well seated with the piston in that orientation. I'd recommend to test drive the car after rear brake service, then apply/release the parking brake a few times, raise the rear and verify the wheels are spinning semi-freely.

For both the front and rears, you want to ensure the everything's well seated, so the car doesn't detect excess brake travel, throw a code.

And last but not least: for a DIY'r, or basically anyone without techstream, it's advisable to disconnect the 12 volt battery at the outset, and when all done pump the brake pedal multiple times, and only then reconnect the 12 volt. One issue if you don't: opening the driver's door (and possibly other behaviours?) will very likely activate the brake pressurizing system, and if the caliper's off the rotor when this happens, it will likely pop the piston out.

 

Did they just "look" at the brakes? Or did they pull the pads???
Do they only squeak when applying the brakes, or all the time?
You can look through the wheel and see if you see any black or gray paste on the pads.
The back half.

 

If only change was new rotors and new pads....
This is not normal.
Creaking noise as opposed to squeal is concerning.
Maybe the parts were not correct torqued upon recall?

I would suggest you re-bed the pads.
Get up to speed, brake hard, let brakes cool repeat maybe 5 to 10 time to be sure.
Internet will offer the proper bedding procedure.
One last comment, maybe clean the rotor (deglaze/ de grease) before re-bedding.

Good luck.

 

Honda advocates a uniform application of anti-seize on all points of contact, ie between the pad backs and shims, and the shims and calipers. When I had Honda dealership doing our Accord brakes you would always see a uniform line of "squeeze out", all the way 'round.

Toyota OTOH, recommends a lttle dab or two only, at specific spots. And their official stuff seems like a clear gel.

So depending on the mechanic's school of thought, hard to say what to look for.

I employ the Honda method, for what it's worth.

 

Speaking of brakes.

I just chatted with Lucious Garage in Sf and they specialize in hybrids for over 10 yrs and said the brake fluid on a 2014 Prius iii (3rd gen) DOES NOT need brake fluid changed unless there is a compelling reason to do so. And same for the power steering fluid. So I asked further what if both fluids discolor and not look original with many miles? Same answer lol

 

I agree on the power steering on a Gen3
Because it doesnt have it

edit: maybe you meant coolant?
but toyo does recommend changing both engine and inverter

 

oh so no peer steering fluid lol ‍♂️

But for brake fluid I am still baffled

 

Brake fluid absorbs moisture in the air. Moisture is NOT good for the inside of the brake system.
The brake system is not a sealed system, it's exposed to the air.
DOT3 fluid should be changed every 2 years. Some say 3 years. The longer you wait,
the more possible damage to the brake system.
But you could wait 10 year if you want. You could also wait 50,000 miles to change your oil....

 

When I pull the pads, I see where there the shiniest, and where the two parts rub.
That's where I put the paste. Not a lot, just enough to cover it. Too much attracts more dirt.
I also clean up all the area so they are clean before applying.

 

All that being said,,,,I've never changed any brake fluid in any car I've ever owned.....and never had a problem.
Can you explain how it's exposed to the air?

 

"The brake system is not a sealed system, it's exposed to the air."
Through the cap.