IllustrationTOYOTA PRIUS ABS BRAKE PUMP ACTUATOR BOOSTER FAILING Making hissing noises and warning icon at only 10 years 9 month, 85,000 miles. Toyota extended warranty is NOT covering.
2015 Toyota Prius
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2015 Toyota Prius do not stand out strongly from the model-year median of 164.
About this comparison →How this year compares
Owner complaints by model year
Compare all Prius years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
320–25K
1525–50K
850–75K
675–100K
7100–150K
3150K+
71 reports with mileage · 93 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes. Review the 87 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 27 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
29 crash reports1 fire reports12 injury reports
What owners actually said
164 reportsOn Feb. 19, 2026, I went to an auto repair store to change oil. I was told that I need to have rear brake pad and rotor replacement service because my car does not have it. The mechanic showed me and said that I only have the front brake work and it can cause safety issue.
Inferior brake system on 2015 Prius master brake cylinder and vacuum booster. Extended warranty issues identified by Toyota for 10 years or 150, 000 miles. I bought my Prius used in 2021 with 92,000 miles at age [XXX] old intending it to last as long as I did. I am now [XXX] old and essentially totally independent. The above m…
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Inferior brake system on 2015 Prius master brake cylinder and vacuum booster. Extended warranty issues identified by Toyota for 10 years or 150, 000 miles. I bought my Prius used in 2021 with 92,000 miles at age [XXX] old intending it to last as long as I did. I am now [XXX] old and essentially totally independent. The above mentioned parts were identified as not functioning properly on 2/3/2026 (mileage 139, 106). On 2/6/26, I took it to Goettle Toyota, Ocala FL (mileage. 139,160) knowing there was an extended warranty program available that was admitting the parts were defective but not worthy of recall. I was advised the warranty for my vehicle expired 10/26/2025 (3 months and 8 days prior) and was now invalid. Brake replacement cost is $3675.00 + tax🥴. I was provided warranty information and instructed to call Toyota. I called, spoke with Brook and was advised the warranty was invalid due to date even though the car has less than the 150, 000 mile covered and nothing could be done. I was never notified of this issue so I could monitor for problems before the expiration. Average life for these items on a Prius is 250,000 miles, not 139, 000. I am on limited, fixed income and cannot afford this unnecessary repair. I am already gladly driving a 10 year old car to be independent. Loss of transportation changes my entire lifestyle. I cannot afford another car (if I could, I would be fixing this one). I would be reliant FOR THE REST OF MY LIFE, on others for all needs outside of my home. I live in a very rural area. I feel since I was NEVER notified of any issues and the car is LOW mileage and there should be another 100,000 miles on this car (I have driven it less than 50,000 miles in 5 years) that Toyota should honor the extended warranty based on the proximity of the malfunction to the ending of the warranty period and the LOW MILEAGE of the vehicle. This amount of money is NOTHING to Toyota but it is LIFE CHANGING to this, up until now, independent woma INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFOR
The brake booster suddenly fails at 54k mile. Brake responds slower and need to push the brake pedal all the way It seems a lot of 2010-2015 Prius are facing this problem ABS light, skid light, and brake light was on when it happened, first appeared on Feb 6, 2026 Have to replace brake boost for ~$1500
The contact owns a 2015 Toyota Prius. The contact stated that while driving at an undisclosed speed, the ABS and the traction control warning lights illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a leak in the brake fluid hose. The contact was unsure what repair was performed, but the …
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The contact owns a 2015 Toyota Prius. The contact stated that while driving at an undisclosed speed, the ABS and the traction control warning lights illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a leak in the brake fluid hose. The contact was unsure what repair was performed, but the vehicle was repaired. The contact stated that the failure reoccurred with an abnormal sound. The vehicle was taken back to the independent mechanic, and the contact was informed that the vehicle needed to be taken to the dealer for a complete diagnostic test. The vehicle was taken to the dealer, where it was diagnosed with brake booster failure. The contact was informed that the brake booster needed to be replaced. The vehicle was not repaired. The contact was notified of Customer Support Campaign: ZJB; however, the contact was informed that the repair was not covered under the Customer Support Program because of the 10-year 100,000-mile limitation. The manufacturer was made aware of the failure, and a case was filed. In addition, the contact stated that the Customer Support Program: ZJB, was mailed out to customers 10 years ago. The contact stated that the information was never received. The failure mileage was approximately 114,000.
ABS break actuator and abs pump failed while driving losing loss of breaking. Toyota is aware of this problem but refuse to fix this notorious and dangerous problem they have with multiple model years. I was not informed of the limited service campaign. This should be recalled as a safety to the public.
Clear coat and paint is peeling, especially on the roof. Toyota is not acknowledging that this happening with the 2015 Prius seaglass pearl paint.
Defected brake booster hard brake suddenly car less than 100 000 miles many vehicles with the problem
I purchased a vehicle a year ago whenever my vehicle was still under the tenure and the 10 year and it’s still under 150,000 mile range. The vehicle was purchased strictly from the Toyota dealership in Lakeland, Florida, and shortly thereafter my brakes completely went out and the booster actuator assembly looking it up by furth…
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I purchased a vehicle a year ago whenever my vehicle was still under the tenure and the 10 year and it’s still under 150,000 mile range. The vehicle was purchased strictly from the Toyota dealership in Lakeland, Florida, and shortly thereafter my brakes completely went out and the booster actuator assembly looking it up by further realize that is a very common issue and that there is so much that there’s class action lawsuits and also instead of it having a recall, it has a customer support to replace parts. My car is very dangerous and doesn’t have any brakes and it’s still very new from the dealership. What it’s very interesting is that it’s not throwing any codes at all, though it beeps the entire time that I’m in the vehicle with the ABS light on and I know that it’s that problem why is it not showing any codes I think that for sure, the dealership would’ve had to done something to prevent that in order to sell the car unsafely
While driving, my brakes became mushy and ineffective. Brake warning lights came on, also. It was very scary driving in rush hour traffic with little to no brakes. There was no reliability. Just keeping as much as possible space between cars, using Hazard lights &prayer.
Official recalls
120V369000 · Hybrid Propulsion System: Inverter
Jun 24, 2020
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2013-2015 Prius and 2014-2017 Prius V vehicles not included in recall 18V-684. Excessive voltage in the Intelligent Power Module (IPM) within the inverter may cause the hybrid system to shut down, causing the vehicle to stall while being driven.
Consequence & remedy
Consequence: An unexpected hybrid power system shut down may increase the risk of a crash.
Remedy: Toyota will notify owners, and dealers will perform a software update for the hybrid system. If the vehicle has experienced an inverter failure with certain hybrid system faults related to this condition, the inverter assembly will be repaired or replaced, prior to software update. All repairs will be performed free of charge. This recall began July 24, 2020. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is 20TB10 / 20TA10.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
3DP23005 · Brake Actuator Valve Wear
Opened Nov 22, 2023 · No close date supplied
Status: open (inferred from source dates) · Service Brakes, Hydraulic:foundation Components; Service Brakes, Hydraulic:power Assist
The Office of Defects Investigation (ODI) has received a petition dated September 19, 2023 from the owner of a 2012 Toyota Prius V requesting that ODI reevaluate its decision to deny DP19-004. In the letter, the petitioner reported experiencing an unexpected and complete loss of brake power while driving, accompanied by multiple dashboard warning lights. This petition is based on the petitioner's direct experience and assessment that ODI closed DP19-004 because its prompting petition was withdrawn by that petitioner. ODI will review the work conducted during DP19-004 and a review of any additional related complaints and crashes via a new defect petition The petition and related materials can be reviewed at NHTSA.gov under the following ODI number:11553736.
Additional source detail variants (2)
Service Brakes, Hydraulic:foundation Components
The Office of Defects Investigation (ODI) has received a petition dated September 19, 2023 from the owner of a 2012 Toyota Prius V requesting that ODI reevaluate its decision to deny DP19-004. In the letter, the petitioner reported experiencing an unexpected and complete loss of brake power while driving, accompanied by multiple dashboard warning lights. This petition is based on the petitioner's direct experience and assessment that ODI closed DP19-004 because its prompting petition was withdrawn by that petitioner. ODI will review the work conducted during DP19-004 and a review of any additional related complaints and crashes via a new defect petition The petition and related materials can be reviewed at NHTSA.gov under the following ODI number:11553736.
Service Brakes, Hydraulic:power Assist
The Office of Defects Investigation (ODI) has received a petition dated September 19, 2023 from the owner of a 2012 Toyota Prius V requesting that ODI reevaluate its decision to deny DP19-004. In the letter, the petitioner reported experiencing an unexpected and complete loss of brake power while driving, accompanied by multiple dashboard warning lights. This petition is based on the petitioner's direct experience and assessment that ODI closed DP19-004 because its prompting petition was withdrawn by that petitioner. ODI will review the work conducted during DP19-004 and a review of any additional related complaints and crashes via a new defect petition The petition and related materials can be reviewed at NHTSA.gov under the following ODI number:11553736.
DP22005 · Pedestrian Alert Sounds
Opened Jan 27, 2023 · Closed Aug 7, 2023
Status: closed (inferred from source dates) · Electrical System:propulsion System
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.
DP19004 · Brake Actuator Valve Wear
Opened Sep 30, 2019 · Closed Jan 21, 2021
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist
On September 19, 2019, the Office of Defects Investigation (ODI) received a defect petition from Mr. Roger Hogan requesting that the Agency investigate and recall certain Toyota Prius, Prius PHV, Camry Hybrid and Avalon Hybrid vehicles for a brake actuator valve wear condition covered under Toyota Customer Support Programs ZJB and ZKK (subject CSP?s). In support of his request, the petitioner identified 117 NHTSA complaints allegedly related to the subject CSP condition, including 60 reporting crashes. On September 30, 2019, ODI opened Defect Petition DP19-004 to evaluate the petitioner?s request for an investigation. In August 2020, the petitioner notified the Agency that he was withdrawing his petition. Because the petitioner has withdrawn the petition, we are denying the petition as moot and no further analysis of this petition is necessary.NHTSA is authorized to issue an order requiring notification and remedy of a defect if the Agency?s investigation shows a defect in the design, construction, or performance of a motor vehicle that presents an unreasonable risk to safety. 49 U.S.C. ?? 30102(a)(9), 30118. Because the petitioner has with withdrawn the petition, the petition is denied as moot. This action does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency notes that it is not required to receive a defect petition prior to opening a defect investigation and will take further action if warranted by future circumstances.