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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 →

When problems were reported

Mileage at the reported incident

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 reports
25,000 miles · Mar 10, 2021
Unknown Or Other

I RECEIVED A LONG TECHNICAL LETTER FROM TOYOTA WITH MY VIN NUMBER WARNING ME OF A POSSIBLE FAILURE OF THE INTELLIGENT POWER MODULE IN MY 2015 PRIUS. IT SAYS THIS IS NOT A RECALL, BUT RATHER AN ADVISEMENT OF A VOLUNTARY CUSTOMER PROGRAM THAT HAS BEEN INITIATED FOR MY VEHICLE. IT SAYS THAT IF I HAVE THE INCLUDED SYMPTOMS, TO BRING…

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I RECEIVED A LONG TECHNICAL LETTER FROM TOYOTA WITH MY VIN NUMBER WARNING ME OF A POSSIBLE FAILURE OF THE INTELLIGENT POWER MODULE IN MY 2015 PRIUS. IT SAYS THIS IS NOT A RECALL, BUT RATHER AN ADVISEMENT OF A VOLUNTARY CUSTOMER PROGRAM THAT HAS BEEN INITIATED FOR MY VEHICLE. IT SAYS THAT IF I HAVE THE INCLUDED SYMPTOMS, TO BRING IT IN FOR EVALUATION, AND A REPAIR WILL BE ATTEMPTED, BUT IF THE PROBLEM IS NOT THE IPM, I WILL HAVE TO PAY FOR THE INVESTIGATION. THIS SOUNDS MOST UNFAIR. I DO NOT HAVE THE SKILLS TO MAKE THE NECESSARY DETERMINATION. I CALLED MY LOCAL TOYOTA DEALERSHIP AND THEY SAID THEY WOULD HAVE SOMEONE CALL ME BACK, BUT NO ONE HAS CALLED!

NHTSA ODI #11400147

2,000 miles · Aug 28, 2020
Electrical SystemEngineVehicle Speed Control

ANYTIME I CHANGE ELEVATIONS THE ENGINE SEEMS TO REV WHEN IT IS IDLING ON CRUISE CONTROL. ON THE DOWNHILL, THE CAR WILL ACCELLERATE TO IGNORE THE SPEED ON CRUISECONTROL TO DANGEROUS HIGH VELOCITY. I REPORTED THIS TO TOYOTA OF NORTH HOLLYWOOD THREE TIMES... IT WAS NEVER ADDRESSED.

NHTSA ODI #11351905

34,000 miles · Aug 24, 2020
Service BrakesCrash

BRAKES FAILED TO SLOW OR STOP VEHICLE AT ?20 MPH; DRIVING ON A SIDE STREET. NO WARNING LIGHTS WERE ACTIVE THAT MORNING. CRASH INTO TELEPHONE PHONE RESULTED IN "TOTALED" CAR. THERE WAS BROKEN BRANCHES ON ROAD AND SOME MUD; CAR MAY HAVE SKIDDED. MY WIFE SAYS THE CAR SEEMED TO SPEED UP BEFORE THE CRASH

NHTSA ODI #11350859

17,870 miles · Jul 23, 2020
Power Train

STARTED HEARING GRINDING AND SCREECHING NOISES FROM UNDERNEATH THE HOOD AFTER A 125 MILE DRIVE TO SAN FRANCISCO. THE FOLLOWING DAY VEHICAL STARTED BUT GRINDING NOISE PERSISTED WHILE VEHICAL WAS PARKED IDLING.DORVE TO THE STOE AND ON THE WAY BACK HOME THE CAR STALLED ON THE HIGHWAY. COULD NOT GET IT TO TURN BACK ON SO I PUS…

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STARTED HEARING GRINDING AND SCREECHING NOISES FROM UNDERNEATH THE HOOD AFTER A 125 MILE DRIVE TO SAN FRANCISCO. THE FOLLOWING DAY VEHICAL STARTED BUT GRINDING NOISE PERSISTED WHILE VEHICAL WAS PARKED IDLING.DORVE TO THE STOE AND ON THE WAY BACK HOME THE CAR STALLED ON THE HIGHWAY. COULD NOT GET IT TO TURN BACK ON SO I PUSHED IT OFF THE HIGHWAY. ERROR MESSAGE ON DASH MENTIONED SOMETHING ABOUT AN ERROR WITH THE HYBRID SYSTEM.

NHTSA ODI #11341126

100,500 miles · Jul 7, 2020
Electrical SystemFuel/propulsion SystemPower Train

105K MILAGE. DRIVING ON HIGHWAY AT ABOUT 45MPH AND CAR SUDDENLY JERK AND SLOWED TO ABOUT 10/15MPH. LOST ELECTRIC POWER, ABLE TO ONLY CONTINUE DRIVING ON GAS 10/15MPH. TOYOTA HAD TO REPLACE THE FOLLOWING WHICH THEY INDICATE WAS NOT UNDER WARRENTLY WHICH COST $2642. TRANSISTER KIT, POWE PLUE KIT, INVERTER D GREASE SUP…

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105K MILAGE. DRIVING ON HIGHWAY AT ABOUT 45MPH AND CAR SUDDENLY JERK AND SLOWED TO ABOUT 10/15MPH. LOST ELECTRIC POWER, ABLE TO ONLY CONTINUE DRIVING ON GAS 10/15MPH. TOYOTA HAD TO REPLACE THE FOLLOWING WHICH THEY INDICATE WAS NOT UNDER WARRENTLY WHICH COST $2642. TRANSISTER KIT, POWE PLUE KIT, INVERTER D GREASE SUPER LONG LIFE COOL GASKET

NHTSA ODI #11337953

94,501 miles · Jun 25, 2020
Fuel/propulsion System

I WAS DRIVING ON THE INTERSTATE WHEN MY CAR'S HYBRID SYSTEM WARNING LIGHTS A CAME ON , AND THE CAR SLOWED TO A CRAWL. LUCKILY I WAS IN THE RIGHT LANE AND WAS ABLE TO PULL OFF ON THE SHOULDER OF THE ROAD. THE CAR COMPETELY SHUT DOWN. I'VE HAD IT TOWED TO TWO TOYOTA DEARLSHIPS, (THE SAME ONE TWICE),WHERE I WAS TOLD A NUMBER OF DIF…

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I WAS DRIVING ON THE INTERSTATE WHEN MY CAR'S HYBRID SYSTEM WARNING LIGHTS A CAME ON , AND THE CAR SLOWED TO A CRAWL. LUCKILY I WAS IN THE RIGHT LANE AND WAS ABLE TO PULL OFF ON THE SHOULDER OF THE ROAD. THE CAR COMPETELY SHUT DOWN. I'VE HAD IT TOWED TO TWO TOYOTA DEARLSHIPS, (THE SAME ONE TWICE),WHERE I WAS TOLD A NUMBER OF DIFFERENT THINGS. FIRST, I WAS TOLD THERE WAS WATER IN THE GAS TANK. THERE WAS NO WAY THAT WAS TRUE, SINCE I HAD ALREADY DRIVEN 3/4'S OF A TANK OF GAS, AND I ALWAYS FILL MY TANK UP. I REFUSED TO HAVE A NEW FUEL SYSTEM PUT IN TO THE TUNE OF $2500. I HAD IT TOWED TO AN INDEPENDENT REPAIR SHOP, AND WHERE HE GOT 5 GALLONS OF WATER OUT OF THE TANK. I ONLY HAD ABOUT 3 GALLONS OF GAS IN THE CAR TO BEGIN WITH, AND I KNOW I DIDN'T PUT WATER IN THE TANK.THE HYBRID SYSTEM SEALS HAD NEVER BEEN BROKEN, SO THE DEALERSHIP DIDN'T EVEN CHECK THAT OUT, EVEN THOUGH THE WARNING LIGHTS CAME ON REGARDING THE HYBRID SYSTEM. VERY FISHY...THE NEXT DEALERSHIP TOLD ME THERE WAS WATER IT AND IT NEEDED TO BE DRAINED AND FUEL REPLACED, EVEN THOUGHT THAT HAD JUST BEEN DONE. THEY SENT ME A PHOTO OF A COKE BOTTLE WITH ABOUT 1/4 CUP OF FUEL WATER MIX. I WAS ALSO TOLD THAT THE HYBRID BATTERY SYSTEM WAS NOT UNDER WARRANTY SINCE AN INDEPENDENT REPAIR SHOP DRAINED THE FUEL SYSTEM.THE CAR'S BATTERIES WERE STILL UNDER WARRANTY, SINCE IT WAS UNDER 100,000 MILES. WE SENT IT BACK TO THE FIRST DEALERSHIP WHERE THEY NOW SAID IT WAS A FAILED ENGINE WHICH WOULD COST $10,000 TO REPLACE. (MORE THAT THE WORTH OF THE CAR). THIS NIGHTMARE HAS LASTED OVER 8 MONTHS! IT BEGAN IN SEPT.2019. COMPLAINED TO TOYOTA CORPORATE TO NO SATISFACTION. BOTTOM LINE, TOYOTA DIDN'T KNOW WHAT WAS WRONG WITH THE CAR, AND WOULD NOT FIX IT UNLESS WE PAID TO HAVE IT FIXED EVEN THOUGH IT WAS UNDER WARRANTY. THE RECALL THAT IS BEING IMPLEMENTED IS EXACTLY WHAT HAPPENED TO MY CAR. *TR

NHTSA ODI #11330732

75 miles · Apr 8, 2020
Service Brakes

I PURCHASED THE VEHICLE NEW IN 2025 AND I HAVE BEEN EXPERIENCING BRAKE FAILURE ISSUES EVERY TIME I ATTEMPTED TO BRAKE OVER EITHER A POTHOLE, A SLICK SURFACE LIKE A METAL SHEET AT ROAD CONSTRUCTION OR WET ROADS THE BRAKE WOULD FAIL. ALL THE RED WARNING SIGNS WOULD COME ON IN THE DASHBOARD AND THE BRAKES WOULD MAKE THAT LOUD HORR…

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I PURCHASED THE VEHICLE NEW IN 2025 AND I HAVE BEEN EXPERIENCING BRAKE FAILURE ISSUES EVERY TIME I ATTEMPTED TO BRAKE OVER EITHER A POTHOLE, A SLICK SURFACE LIKE A METAL SHEET AT ROAD CONSTRUCTION OR WET ROADS THE BRAKE WOULD FAIL. ALL THE RED WARNING SIGNS WOULD COME ON IN THE DASHBOARD AND THE BRAKES WOULD MAKE THAT LOUD HORRIBLE NOISE. I LOVE MY PRIUS, I DON'T WANT TO GET RID OF IT. I WAS HOPING TOYOTA MOTORS WOULD HAVE A FIXED FOR THE BRAKING SYSTEM BY NOW AS THIS IS VERY UNSAFE SPECIALLY INEXPERIENCED DRIVERS. MY GOAL IS TO PASS THIS CAR TO MY TEENAGE DAUGHTER WHEN SHE GOES TO COLLEGE IN 2021, BUT THIS MAY NOT BE POSSIBLE IF TOYOTA DOESN'T TO UP WITH A SOLUTION TO THE PROBLEM.

NHTSA ODI #11320483

38,000 miles · Feb 12, 2020
Power TrainCrash

THE PRIUS WAS STATIONARY, PARKED IN THE DRIVEWAY OF OUR HOUSE. MY TEENAGE DAUGHTER WAS IN THE CAR WASHING THE WINDSHIELD AND WINDOWS ON THE INSIDE AND ACCIDENTALLY BUMPED THE GEARBOX (SHIFTER). THE CAR WENT OUT OF PARK AND INTO NEUTRAL AND ROLLED BACKWARD. THE ENGINE WAS NOT ON. THE CAR QUICKLY ROLLED 20 FEET INTO A TREE AND …

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THE PRIUS WAS STATIONARY, PARKED IN THE DRIVEWAY OF OUR HOUSE. MY TEENAGE DAUGHTER WAS IN THE CAR WASHING THE WINDSHIELD AND WINDOWS ON THE INSIDE AND ACCIDENTALLY BUMPED THE GEARBOX (SHIFTER). THE CAR WENT OUT OF PARK AND INTO NEUTRAL AND ROLLED BACKWARD. THE ENGINE WAS NOT ON. THE CAR QUICKLY ROLLED 20 FEET INTO A TREE AND CAUSED 6200$ DAMAGES TO THE REAR OF THE CAR. LUCKILY NO ONE WAS BEHIND THE CAR. I BELIEVE THAT THE PRIUS CAN BE ACCIDENTALLY PLACED IN NEUTRAL IF ELECTRICAL IS ON IN THE CAR (IE RADIO) AND SOMEONE HAS THEIR FOOT ON THE BRAKE AND HITS THE GEARBOX BY ACCIDENT. THERE IS NO SAFETY ON THE SHIFTER TO PREVENT UNINTENTIONAL SHIFTING. MANY OTHER CARS REQUIRE A MANUAL BUTTON ON THE SHIFTER TO BE DEPRESSED PRIOR TO SHIFTING. THIS IS NOT THE CASE ON THE PRIUS. WITHOUT THAT SAFETY FEATURE, ACCIDENTS LIKE THIS ONE CAN HAPPEN AND POTENTIALLY KILL SOMEONE. THE CAR CAN BE MADE TO BE IN NEUTRAL BY ACCIDENT RATHER EASILY.

NHTSA ODI #11308647

100,300 miles · Jan 31, 2020
Exterior Lighting

TL* THE CONTACT OWNS A 2015 TOYOTA PRIUS. THE CONTACT STATED THAT ON OCCASIONS THE HEADLIGHTS FAILED TO ILLUMINATE. ADDITIONALLY, THE FAILURE WAS EXPERIENCED WHILE DRIVING AT NIGHT. THE CONTACT STATED THAT WHILE DRIVING AT NIGHT THE LOW BEAM HEADLAMPS BECAME INOPERABLE. THE CONTACT WOULD THEN HAVE TO USE TO THE HIGH BEAM HEADLAM…

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TL* THE CONTACT OWNS A 2015 TOYOTA PRIUS. THE CONTACT STATED THAT ON OCCASIONS THE HEADLIGHTS FAILED TO ILLUMINATE. ADDITIONALLY, THE FAILURE WAS EXPERIENCED WHILE DRIVING AT NIGHT. THE CONTACT STATED THAT WHILE DRIVING AT NIGHT THE LOW BEAM HEADLAMPS BECAME INOPERABLE. THE CONTACT WOULD THEN HAVE TO USE TO THE HIGH BEAM HEADLAMPS FOR SAFE NIGHTTIME DRIVING. THE CONTACT STATED THAT TURNING OFF THE HEADLAMP SWITCH AND TURNING BACK ON TEMPORARILY REMEDIED THE FAILURE. THE CONTACT STATED THAT THE FAILURE WAS INTERMITTENT. THE VEHICLE WAS TAKEN TO MOLLE TOYOTA LOCATED AT 601 WEST 103RD STREET 64114 PHONE (866)-577-9913. THE CONTACT WAS INFORMED THAT THE HEADLAMPS OPERATED AS INTENDED WHILE BEING INSPECTED BY THE TECHNICIAN. THE CONTACT WAS ASKED TO HAVE THE VEHICLE TAKEN BACK TO THE DEALER WHILE THE FAILURE WAS PRESENT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,300.

NHTSA ODI #11306279

30,000 miles · Jan 14, 2020
Service Brakes

THE BRAKES ON MY 2015 PRIUS TOTALLY FAILED AND I HAD TO SWERVE TO AVOID CRASHING INTO THE CAR STOPPED IN FRONT OF ME. I'VE BEEN DRIVING FOR MORE THAN 30 YEARS AND HAVE NEVER EXPERIENCED ANYTHING LIKE THIS. IT WAS TERRIFYING. TO WIT: I WAS DRIVING ABOUT 20 M.P.H. ON CITY STREETS IN LONG BEACH, CALIFORNIA, IN APRIL 2019. AS I DROV…

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THE BRAKES ON MY 2015 PRIUS TOTALLY FAILED AND I HAD TO SWERVE TO AVOID CRASHING INTO THE CAR STOPPED IN FRONT OF ME. I'VE BEEN DRIVING FOR MORE THAN 30 YEARS AND HAVE NEVER EXPERIENCED ANYTHING LIKE THIS. IT WAS TERRIFYING. TO WIT: I WAS DRIVING ABOUT 20 M.P.H. ON CITY STREETS IN LONG BEACH, CALIFORNIA, IN APRIL 2019. AS I DROVE OVER A BRIDGE, TRAFFIC WAS COMING TO A STOP AT A RED LIGHT 200 YARDS IN FRONT OF ME. I DROVE OVER A NARROW METAL PLATE--THERE ARE SEVERAL ON THE BRIDGE--AND HIT THE BRAKES, BUT MY CAR DIDN'T SLOW. A WARNING LIGHT FLASHED--A STABILITY CONTROL LIGHT, I BELIEVE, DUE TO THE METAL PLATE. I PRESSED THE BRAKES TO THE FLOOR AS MY CAR ROLLED DOWNHILL ON PAVEMENT. MY CAR DID NOT SLOW AT ALL. I LOOKED IN THE DRIVER SIDE MIRROR AND SAW THAT THE LANE TO MY LEFT WAS CLEAR, SO I SWERVED INTO IT WITH MY FOOT ON THE BRAKES. THE CAR SLOWLY CAME TO A STOP WELL BEYOND WHERE I SHOULD HAVE STOPPED HAD MY BRAKES WORKED PROPERLY. THE INCIDENT WAS SO TERRIFYING THAT I HAD TO PULL OVER TO COLLECT MYSELF. MY BRAKES WORKED PROPERLY AFTER THAT. A FEW DAYS LATER, I TOOK MY CAR TO PENSKE TOYOTA IN DOWNEY, CALIFORNIA, WHERE I BOUGHT THE CAR, AND TOLD A SERVICE AGENT WHAT HAPPENED. I ASKED HIM TO FIX THE PROBLEM. AFTER SERVICE TECHNICIANS INSPECTED THE BRAKES THAT DAY, I WAS TOLD THE BRAKES APPEARED TO BE FINE AND, BARRING A RECALL, NOTHING COULD BE DONE. I'VE BEEN DRIVING THE CAR SINCE THEN, BUT I'VE WORRIED THAT THE BRAKES COULD FAIL AGAIN. THEN I SAW THE JAN. 3, 2020 ARTICLE BELOW. AS A RESULT, I'VE RENTED A CAR AND HAVE STOPPED DRIVING MY PRIUS. THIS IS A TERRIFYING, LIFE-THREATENING PROBLEM THAT NEEDS TO BE ADDRESSED NOW. HTTPS://WWW.DAILYNEWS.COM/2020/01/03/A-SOUTHERN-CALIFORNIA-TOYOTA-DEALER-WANTS-THE-CAR-GIANT-TO-FIX-AN-ALLEGED-BRAKE-DEFECT-BEFORE-PUTTING-LIVES-AT-STAKE/ P.S. I'M NOT SURE OF THE EXACT DATE THIS INCIDENT OCCURRED. DATE BELOW IS MY BEST ESTIMATE.

NHTSA ODI #11299216

Official recalls

1

20V369000 · 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

3

DP23005 · 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.