It's the exact issue from the ZJB customer support program. The brake booster is faulty. All the brake warning lights came on all at once. A few weeks ago the brakes were starting to make a noise so I brought it to the Toyota dealer and also called Toyota customer care. The dealer ran a diagnostic and said the booster needed to be replaced but Toyota customer care wouldn't cover the $3500 fix because the customer support program ended on Aug 31 2021. The extension of the ZJB program covered 10years or 150,000 miles. Even though my Prius is a 2011 and got the diagnostic done in 2021, they said I was technically past the 10 year mark because evidently my Prius was initially purchased in September of 2011 and I had the problem diagnosed in Dec of 2021. Three months late. I've spend hours on the phone with Toyota pleading my case and they have been of no help. They know this is a problem. There's a class action lawsuit. There's been petitions. This issue needs to be recalled.

- Nashville, TN, USA

My husband and I bought a 2011 Toyota Prius 7 months ago. It was a one owner car in excellent condition with unusually low miles. The last two times we've had the dealership service it we've asked about a noise that the brakes were making. Both times we were told the brakes were fine and didn't need any service. Two days ago the ABS light came on. We immediately took it to the dealership. Yesterday we were told that the brake booster and actuator have gone out in the car. Turns out that Toyota issued an extended warranty for this exact repair to be done due to a manufacturers defect with the parts. It was for 10 years or 150K miles. It expired in October. My car has less than 90K miles on it! Now I have to pay $2800 to repair a manufacturers defect because Toyota refuses to fix it now. This is a known safety issue. They are doing everything they can to save money and avoid a recall. This is NOT good business. There is currently a class action lawsuit that has been filed against Toyota for this very issue. Toyota refuses to recall the product and does everything in it's power to not fix the issue. People have already been injured due to this issue. They even tell the dealerships not to fix the issue under the warranty unless the car spits out a particular code - no matter the issue someone is having with their braking system. A quick Google search will yield many testimonies from others who are part of this lawsuit who are experiencing the same issues. This is a known safety hazard due to a manufacturers defect that Toyota has known about for years. This is not a new issue and it effects several types of vehicles made by Toyota. I have made many phone calls to customer service and been told several times by different people now that this is no longer their problem. Toyota refuses to step up to the plate and fix this issue in these cars. This is not just in the Prius. They have made it abundantly clear that they DO NOT care about the safety of their consumers!

- Orange Beach, AL, USA

The contact owns a 2011 Toyota Prius. The contact stated that while driving at 60 MPH, the brake pedal was depressed but hesitated to respond. The contact did not recall the number of feet in stopping distance delay. The ABS warning light, traction control warning light, tire pressure warning light, and an unknown warning light were illuminated. The Brake message was displayed. The vehicle was taken to the dealer who diagnosed that the brake booster and the brake booster pump needed to be replaced. The manufacturer was notified of the failure and advised the contact that the failure was a known failure however, the extended warranty had expired. The vehicle was not repaired. The approximate failure mileage was 139,000.

- Corbin, KY, USA

While driving on a freeway in December 10th 2021, the ABS, Brakes and Tire pressure sensor lighted up and suddenly the brakes felt stiffed and the car did not respond as usual. Luckily I was able to move to the side, stop and make sense of what just happened. I went straight to a mechanic and got the diagnose C1391. He share the bad news, the cost to fix it would run over $2000. After further research, I found out this is an ongoing issue with many Prius specially 2011. It appears there was a customer support program related to this issue that I never heard of. Now I do, but it is too late. It will cost me serious money to fix it. This is a safety issue that can not be ignored. Toyota should be made responsible to fix it. Either they do it voluntarily or some of the owners may have no choice but to take this issue to court. It is my understanding there are some law suits filed already. We need this issue to became a recall, before someone gets hurt. I will have to consult with an attorney.

- Duarte, CA, USA

While driving a 2011 Toyota Prius, 3 dashboard lights (ABS, Brake, and yellow) all lite up at once, making braking difficult. My daughter almost rear-ended the car in front of her. When taken to the dealership, my car had an error of C1391. There was a customer support program from Toyota "ZJB" with this exact diagnosis of issues with the brake booster, which I was never notified nor was it listed on their website. They refused to fix it as it had expired. My car has less than 100,000 miles even though their recall listed up to 150,000 miles. I've attached the Toyota dealership diagnosis and repair cost of $2969.99 which I can not afford. I'm assuming that now traction control and anti-lock braking are now non-operational making this car dangerous to drive, especially for my daughter.

- Tampa, FL, USA

September 28, 2021 I was driving on a highway when my ABS lights, brake lights, and traction lights went on. I noticed a changed in my brakes and felt unsafe to drive. Luckily I was able to pull over. I took my car at Toyota and they confirmed its the hydraulic brake booster & pump. $2,900 for a warranty that was expired 4 weeks short. I read this is an on going problem and lawsuits about their brake systems. This should be a recall safety issue! It's unfair they allowed 2012 prius models and newer years to have theirs warranty extended to December 2021 but not the 2011 prius?? They should offer the deadline to ALL prius models or at least feel free to help out. 135k miles in and I can't believe it's worthless all because Toyota couldn't adjust they policy to extend the dates.

- Acworth, GA, USA

one year after bought, was losing power, replacing a lot of batteries, headlights and lamps then car would lose power while driving, not start continually everyday for each day after and even started on its own. i took in a lot and they put my vin to the wrong person..someone rainsford so my service recs were not recorded. said no battery code, didnt check altenator, and even tho serv advisor said the break was squishy to him and he heard the loud buzz noise when pushing, it was not replaced. they tried to blame it on keys being in car which is how it starts and runs! not parked on hill or in bad temps and driven long trips, none of which SHOULD BE REQIRED to start a car to get to dying patients on time. we bought charger and use on both priuses daily. lost power while driving, got hurt, and josh's pt. died. nothing but headache nightmares. have long written records where submitted all and they just like to deny things or try to find a way to blame on consumer. my only fault was buying an undisclosed deathtrap. they need to refund us both cars and damages and expenses and our time and missed work. the shuttle was a joke. i have my own top notch code reader and it said battery was fine. it was new, yet they wanted to sell me one so they said it coded but refused to show me. they are just trying to make money and really hurting people. sending my title and all my personal info to a stranger and me catching after 7 years broght on an ID theft im still fighting. very rude front staff and drivers..sheldon.

- Rancho Cordova, CA, USA

My car is a well-maintained 2011 Prius 4 with only 88k miles on it. Recently the traction light, the tire pressure light, the BRAKE light, and the ABS light came on suddenly at once. I took it to my mechanic, who is a certified Prius technician, and he diagnosed it to be a defect in the brake booster and the booster pump (basically my brakes can stop working at any moment). He also mentioned that this was the 3rd Prius this week to come to his shop with this problem. A problem that is not only incredibly unsafe but costs $2,000-$3,000 to fix. One of his customers couldn't afford it or wait the week for the part to arrive and, against his advice, left with her car and is driving around with brakes that could fail at any moment. This seemed wildly unsafe for any Prius driver, so I went online for further information and I found a petition for a recall with 177 complaints and 60 car accidents because of their brakes failing. I also found that Toyota had issued a "Customer Support Program ZJB" for this very issue. Which is great except for all the Prius owners, like me, who never received notification. I know for a fact I would have gotten my Toyota looked at (and fixed) if I would have known about this. It's too risky not to. According to Toyota, there are approximately 946,100 vehicles covered by this Customer Support Program ZJB. That's 946,100+ people who have the risk of their brakes failing and they might not know about it. I know there is only so much that Toyota can be liable for but shouldn't this be a recall and fixable for all owners at all times? I asked Toyota about Customer Support Program ZJB and they informed me that my coverage expired only 14 days ago, so they can't help me. THIS DANGEROUS ISSUE SHOULD NOT HAVE AN EXPIRATION DATE. This should be fixable to all Toyota drivers regardless of when they first drove their car or some arbitrary date that Toyota created. We trust Toyota to keep us safe by buying their vehicle in the first place.

- Los Angeles, CA, USA

The brake booster pump is failing, and it is available for inspection upon request. My safety is put at risk because when it fails, my breaks will become extremely difficult or impossible to apply; if the vehicle is in motion and I need to apply the brakes at the time of (or after the) failure, I will be unable to stop the vehicle safely, putting myself and others at risk of collision. The problem been reproduced and confirmed by a dealer. Besides The Toyota dealer, the vehicle or component has not yet been inspected by the manufacturer, police, insurance representatives or others. There have not yet been any warning lamps or messages regarding the failing component, however I discovered the issue because of the symptom of a high frequency (every 25 seconds or so) of the whirring noise made by the leaking brake pump when it engages, without ever applying the brakes in between. Symptoms were first noticed approximately a week ago, or 4 days before taking the vehicle to the dealer.

- Mountain View, CA, USA

The 2010 Prius will suddenly develop Brake faults. The BRAKE, ABS and Traction Control lights will light up on the panel. The cars braking capacity effectively reduces to 50% and the regenerative charging also goes missing. This is an issue when the car all of a sudden would brake with half the capacity anticipated putting the occupants and others around at huge risk. Toyota does not have a plan to fix this issue yet - they would reset the code which fixes the problem but for a couple of trips / days / weeks.. an uncertain time until this happens again. Replacing brake oil, boosters and pads did not help. I am not sure what could the remedy be, please advise Toyota to investigate and create a formal recall where all effected cars could be repaired for the drivers safety.

- Collierville, TN, USA

The contact owns a 2011 Toyota Prius. The contact stated while driving 40-45 mph, the brake pedal temporarily disengaged on its own when the vehicle hit a bump in the roadway. There was no warning light illuminated. The vehicle was not diagnosed nor repaired. The contact stated that the failure recurred while driving at various speeds. The manufacturer was not made aware of the failure. The approximate failure mileage was 110,000.

- Kansas City,, MO, USA

My brakes make a weird noise and I have to press hard to brake. I-??ve taken it to a couple of mechanics and the brakes are fine, but it might be the brake actuator.

- Montclair , CA, USA

Around 100,000 miles the brake system has been sluggish and it appears the ABS system is failing. Currently the car has 118,617 miles and constantly exhibits sluggish and spongy braking. Hitting a pot hole or any type of bump while pressing the brakes can cause the ABS to light up temporarily and the brakes feel as if they release for 1 second and re-engage. When pressing the brakes there is a popping/air-like sound in the brake system constantly. Bleeding the brakes did not solve this issue. Through research I have discovered this is a complaint of many Prius owners about their brake actuator. It is a $1700+ part that, if fails, will cause the entire brake system to fail.

- Dallas, TX, USA

There were three driving instances where, when applying the brakes, my brake foot went completely to the floor. Twice I was on the city street and once in a parking space. My speed at the time was slow but the brake peddle going to the floor did not stop it. No turn was involved it did stop eventually but the car was carried much further than expected with no braking control. The only collision was when the front end hit a log in my home parking area. The car was towed to the dealer's service dept., but after 4 hours, I was told, "could not duplicate concern customer will have to return when fault is current". they drove it and used their computer but nothing faulty was evident. I was sent off in the car. With an intermittent failure, it wasn't likely. So, now I have a car I don''t dare to drive and won't sell because it's a hazard!

- Portsmouth, NH, USA

Brake booster assembly has a slow leak. Solenoid keeps making noise and the booster assembly makes constant noise. When braking hard it does not stop properly. Braking comes to a slow stop and but push down on the brake harder to keep the car from rolling forward. Confirmed from technician at dealership yet are not authorized to replace it without error code (zjb program). Contacted Toyota corporate and they said without error code from vehicle they will not authorize the repair. Despite confirmation from the technician that there is a leak in the brake booster the safety of the vehicle is in the hands of a error code. Asked corporate if they can override the error code and they replied no.

- Los Angeles, CA, USA

The brake booster is cycling and lights go in and off. I've read that this means it's a failed breaker booster or pressure valve in the breaking system. It's very common to fail, lots of people have reported

- Birmingham, AL, USA

Brake/trac/ABS lights on and will not turn off when parked or in motion. The lights came on the next day after parking overnight. Hybrid battery not recharging from braking. Car makes a whirring sound every 2-3 seconds, seems to be coming from the braking system. Feels unsafe to drive since braking distance feels longer. Car has about 197,000 miles.

- Irvine, CA, USA

Break actuator is failing in my 2011 Toyota Prius. The car now has a unpredictable ABS breaking system. Sometimes the breaks work and sometimes they quickly fail and a error light comes on. The light than goes out as if nothing happened and all is fine. This is a very dangerous problem that will lead to many accidents because the vehicle tells you its good to go, mean while the ABS system is failing to stop the vehicle intermittently. I am scared because I dont know if the car will do this on a turn then lose control injuring myself and others.

- Newtown, PA, USA

The check engine light is on; the car has stalled and looses power it needs to have the sticky exhaust gas recirculation valve taken care of. It also needs psv coverage for brake booster and brake booster pump assembly safety warrantee enhancement

- Washington, DC, USA

A check hybrid system alert came on and included lit break, check engine, steering, ABS, skid and yellow triangle with an ! mark inside. The car stopped and I could not move it. Good thing I was on a side street with light traffic. This happened again after the inverter was replace; and it happened again after the 12 V battery was replaced.

- Washington, DC, USA