strange braking noise

Maybe it's worn? Metal on Metal?

 

Try to Jack up your car and rotate the back wheel s with hand and see if they rotate without resistance. Remember to have the foot parking brake released. Meanwhile check how much your brake disc /pad have been wear down.
Regenerative braking only happens in the front wheel.
Hope it helps

Christian

Posted via the PriusChat mobile app.

 

you probably got something stuck in the calipers/pads. Remove and inspect the braking system.

 

wear clips are probably bent

 

When I hear "rear brakes done" it has me wondering: did they get the caliper piston oriented correctly. There's pins on the pad backs that are supposed to lock in between the spokes on the caliper piston face. When the parking brake is applied this prevents the piston from rotating.

If the pin is mis-oriented, or was not solidly seated, the pin may ride up on a spoke. This causes uneven application of pad pressure, rotor scoring, constant drag, all sorts of good stuff.

For starters, have a look through the spokes with a good light, see how the rotors look. Uniform shiny, or scored? If you crawl under you can JUST see a little bit of the inside face of rotor. Does it look ok? Misaligned piston will evidence as about 50% of the rotor surface being unused/rusty.

Then follow suggestion above, chock the front wheels, raise the rear (with parking brake off), and see how easy the wheels turn. A slight drag is normal, but it should not be a fight to get the wheels spinning a turn or two.

 

A high pitched noise would indicate some type of metal rubbing. If there's a wear indicator clip, check if that's rubbing close to the rotor.

 

While the wheel's off (if it is still) you can check pad thickness. Outside's relatively easy to see, and both sides visible through a hole in the caliper shoulder, edge-on.

 

did you mean air hissing noise? I get that, but only when I press the brake pedal hard enough.