Rotors and calipers at 25,800 miles?

i think this is a known defect. call toyota and ask for goodwill warranty.

you can find other threads here regarding the problem

 

I think that there is NO WAY that all 4 of the rotors are bad.......and warped rotors do NOT damage the calipers.

I think you are being scammed.
Is there another dealer nearby ??
If you do go to another shop, do NOT tell them what the first place told you.

You will never get any "warranty" coverage for the rotors that are bad.....maybe only one......but the rest of that is just BS.

Might want to call the Toyota "warranty help line". They sometimes deal with complaints that are out of warranty too.

 

I'd be going straight to TOYOTA.

 

It's my understanding that a Prius slows down mostly through regenerative braking, and that the actual brakes are engaged only in instances of heavy braking (for an emergency) or at slow speeds (final stop at a traffic light). So I guess I'm wondering when you're experiencing the pulsing - under what conditions. It's been my understanding that under normal usage, Prius brakes last substantially longer than those on standard ICE automobiles.

Are you using your Prius regularly? Does it sit for long periods? Have you visually inspected the rotors to see if they all appear the same - nothing unusual?

 

A lot not making sense. A need for 4 rotors + 4 calipers is pretty much unheard of at 25k miles, even when there is a part quality issue. Fronts and rears use completely different parts.

Also, $800 for replacing 4 rotors and 4 calipers at a dealer sounds suspiciously low. I think there are some communication gaps here...

 

Additional note:
Most of what is described as "warped" rotors isn't that at all but an uneven surface on them.
This can be because of uneven corrosion (rust) on the surfaces or uneven wear due to defective rotors......or sometimes due to excessive heat.
What can warp rotors is improper tightening of the lug nuts.
Almost NO shop takes the time to do it right.

 

Have a look at this thread in the Prime section, Emergency Stop! | PriusChat

 

Pulsation can only happen in front wheel rotors. Back wheels are fixed.cant pulsate don't even need any resurfacing.

 

WHAT ??
That makes no sense at all.
IF.....your rear brakes are drums instead of discs, then they are less likely to warp or have soft spots......but not impossible.
Taken at face value, those statements are just plain WRONG.

 

A 2017 Gen 4 at 25,000 mile check up needing "Rotors warped. We recommend replacing all four rotors and calipers" (to the tune of $800)".

You definitely need a second opinion. I am skeptical when it comes to dealerships.

 

My thought: substandard dealership.

+1 get a second opinion.

 

Gonna have to offer a bit more of the reasoning on that one.

 

ok so that statement might seem not right or completely wrong, everybody here knows im not a mechanic and my knowledge is really minimal, im just an engineer.
of my 40 years of driving experience, i've learned that pulsation of breaks became a major annnoying issue when all disc brakes in front became a standart, will try hard to explain that phisics.
my thoughts : when disc surface is not smooth than the grip of pads is not perfect same for rear and front, but when front wheels get into a resonance mode, pulsation amplifies itself to a non pleasant point, movememnt of front wheel amlifies that resonance.
in theory , rear disc pulsation may occur too but there is no amplification of this resonance phenomena, the tolerance of movement of rear wheels is zero,
also im hoping all experts here will agree with me if i say that there is no need for the rear tires to be balanced, only reason i do rear balance is in case i have to rotate rear to front.
i will be glad to learn more about that form all members here.

 

Tire balance has a direct impact on tire wear.

 

Another thing that can warp the rotors is braking to a stop from high speed (highway) then sitting in traffic (off ramp ?) holding your foot on the brakes. The area where the pad contacts doesn't cool down at the same rate as the exposed area and the rotor warps, especially so in cold or wet weather.

 

You are trying to discuss two ENTIRELY different things here.
Tires NEED to be balanced regardless of what kind of brakes are in use.
Those two things do NOT usually interact with each other.

A pulsating brake pedal or a feeling of uneven braking causing a jerky feeling upon stopping is a BRAKE system problem.
Having the car shake while doing down the road at speed is a tire balance problem (or can be).
No connection between the two.

And NO you are wrong about not needing to balance the rear tires.
Unbalanced tires will wear unevenly too.

 

What is your AVATAR?

 

MG ZS EV