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2011 Toyota Prius

Owner reports · Recalls · Investigations

More warning signs than most Prius years

Owner complaints for the 2011 Toyota Prius are substantially higher than the model-year median of 164.

About this comparison →

When problems were reported

Mileage at the reported incident

330 reports with mileage · 188 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 262 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 68 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Exterior Lighting. Review the 48 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

37 crash reports7 fire reports16 injury reports

What owners actually said

518 reports
Mileage unknown · Apr 7, 2019
Electronic Stability Control (esc)Service BrakesSteering

THE CAR STOP WORKING ALL THE DASH LIGHTS STOP WORKING ,THE BRAKES START GETTING HARDER AND THE DON'T STOP AT ALL AND BEEPING WITHOUT STOP THAT NOISE AND THE HIBRYD SYSTEM STOP WORKING AFTER I LIVING FOR SOME RECALLS REPAIRS AND THE WANT ME TO FIX THE CAR TO PAY AND I KNOW IS NOT MY FAULT EVERYTHING IS BECAUSE IS THIS CAR IS ALL …

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THE CAR STOP WORKING ALL THE DASH LIGHTS STOP WORKING ,THE BRAKES START GETTING HARDER AND THE DON'T STOP AT ALL AND BEEPING WITHOUT STOP THAT NOISE AND THE HIBRYD SYSTEM STOP WORKING AFTER I LIVING FOR SOME RECALLS REPAIRS AND THE WANT ME TO FIX THE CAR TO PAY AND I KNOW IS NOT MY FAULT EVERYTHING IS BECAUSE IS THIS CAR IS ALL ELECTRONIC SYSTEM.NEVER ON MY LIVE I HAVE THIS PROBLEM WITH MY OTHER CARS.ONLY WITH THIS ONE AND NOW THEY ONE ME TO PAY FOR SOMETHING THE COMPANY MAKES WRONG.THIS IS NOT FAIR AT ALL.BEFORE I WAS RECOMENDED THIS CAR BUT RIGHT NOW PEOPLE ASK ME AND I HAVE TO TALK NEGATIVE SITUATION ABOUT IT.

NHTSA ODI #11194409

30,000 miles · Mar 29, 2019
Service Brakes

WHEN I BRAKE ON AN UNEVEN SURFACE (POTHOLES, BUMPS, ETC) THE CAR WILL SOMETIMES JUMP FORWARDS. I AM UNSURE WHETHER IT IS REFERRED TO AS BRAKES SLIPPING BUT IT IS EXACTLY THE SAME THING THAT I'VE READ HAPPENING TO MANY PEOPLE. IT WAS AN ISSUE IN THE 2010, WHICH LED TO A RECALL, YET THERE IS NO RECALL ON THE 2011. IT DOESN'T MA…

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WHEN I BRAKE ON AN UNEVEN SURFACE (POTHOLES, BUMPS, ETC) THE CAR WILL SOMETIMES JUMP FORWARDS. I AM UNSURE WHETHER IT IS REFERRED TO AS BRAKES SLIPPING BUT IT IS EXACTLY THE SAME THING THAT I'VE READ HAPPENING TO MANY PEOPLE. IT WAS AN ISSUE IN THE 2010, WHICH LED TO A RECALL, YET THERE IS NO RECALL ON THE 2011. IT DOESN'T MAKE ANY SENSE, PEOPLE HAVE SAID THAT THE ACTUATOR WAS THE PART THAT NEEDED REPLACING, YET IT IS A $3-4K PART AND SHOULD NOT BE LEFT UP TO THE CONSUMER. THIS IS A SAFETY ISSUE AND IS A KNOWN PROBLEM AND NEEDS TO BE ADDRESSED BY TOYOTA. IT HAS BEEN HAPPENING EVER SINCE I'VE OWNED THE CAR. I HAVE BEEN LUCKY SO FAR THAT IT HASN'T ACCELERATED ME INTO ANOTHER CAR OR PERSON.

NHTSA ODI #11192342

4,000 miles · Mar 28, 2019
Service Brakes

WHILE DEPLOYING BRAKES IF YOU GO OVER BUMPS THEY FAIL TO BRAKE PROPERLY. FEELS LIKE A SPEED UP. THIS HAS HAPPENED NUMEROUS TIME WHILE BRAKING FOR TRAFFIC LIGHT OR MAKING TURNS.

NHTSA ODI #11192179

Mileage unknown · Mar 26, 2019
Air BagsCrash

2011 TOYOTA PRIUS. CONSUMER WRITES IN REGARD AIRBAG NOT DEPLOYING AFTER VEHICLE CRASHED AND SAFETY RECALL NO 18V-684. *AS

NHTSA ODI #11190710

90,000 miles · Mar 21, 2019
Service Brakes

ALL OF THE BRAKE LIGHTS ON MY DASH LIT UP, BRAKES WEREN'T WORKING WELL, TOOK IT TO THE REPAIR SHOP AND WAS TOLD IT WAS MY BRAKE ACTUATOR.

NHTSA ODI #11190607

80,464 miles · Mar 11, 2019
Electrical SystemElectronic Stability Control (esc)Engine

THE CAR STARTS AS NORMAL AND DRIVES NORMALLY BUT ONCE YOU START TO COME TO A STOP THE CAR SHUTS OFF AND WILL ONLY RESTART WHEN YOU DEPRESS THE GAS PEDAL BUT SHUTS DOWN AGAIN WHEN YOU RELEASE THE GAS PEDAL, NORMAL CITY STREETS AND HIGHWAY

NHTSA ODI #11185909

Mileage unknown · Mar 11, 2019
Engine

ENGINE DEVELOPED AN OIL LEAK AROUND 120,000 MILES. DEALER RAN AN OIL LEAK TEST ($700)AND PERFORMED SOMETHING ELSE FOR $300 DOLLARS. NOTHING WORK. DEALER SAYS THE FIX IS TO BUY A NEW SHORT BLOCK FOR $6,700. I WILL NOT. I'M ADDING OIL MYSELF TO CAR ABOUT ONCE EVERY 10 DAYS

NHTSA ODI #11185732

47,000 miles · Mar 7, 2019
Service Brakes

I'M CONSTANTLY HEARING A BARKING/ PURGING NOISE COMING FROM THE BRAKE ACCUMULATOR PUMP WHENEVER I DO HARD BRAKING. WHENEVER I HIT POTHOLES OR ROUGH ROADS, THE CAR WOULD STILL ROLLS DURING BRAKING AS IF THE ABS IS GETTING TRIGGERED. I WAS QUOTED BY TOYOTA DEALER OF AN ESTIMATE OF $3000 TO REPLACE THE BRAKE ACCUMULATOR PUMP AND BO…

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I'M CONSTANTLY HEARING A BARKING/ PURGING NOISE COMING FROM THE BRAKE ACCUMULATOR PUMP WHENEVER I DO HARD BRAKING. WHENEVER I HIT POTHOLES OR ROUGH ROADS, THE CAR WOULD STILL ROLLS DURING BRAKING AS IF THE ABS IS GETTING TRIGGERED. I WAS QUOTED BY TOYOTA DEALER OF AN ESTIMATE OF $3000 TO REPLACE THE BRAKE ACCUMULATOR PUMP AND BOOSTER. I'M AFRAID THAT THE BRAKES WOULD FAIL WHILE DRIVING.

NHTSA ODI #11184751

182,000 miles · Mar 3, 2019
Electrical SystemEngine

A FEW MONTHS AGO I HAD THE REQUIRED SOFTWARE UPDATE TO ADJUST THE SAFETY FEATURE IN THE HYBRID SYSTEM IN CASE OF A FAILURE. WHILE DRIVING ON A SIDE STREET ON 3/1/19 I PRESSED THE GAS AFTER BEING STOPPED, THE CAR JERKED, AND THE CHECK HYBRID SYSTEM LIGHT CAME ON. THIS WAS ON RAILROAD TRACKS BUT THE CAR DID DRIVE ON THE GAS ENGINE…

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A FEW MONTHS AGO I HAD THE REQUIRED SOFTWARE UPDATE TO ADJUST THE SAFETY FEATURE IN THE HYBRID SYSTEM IN CASE OF A FAILURE. WHILE DRIVING ON A SIDE STREET ON 3/1/19 I PRESSED THE GAS AFTER BEING STOPPED, THE CAR JERKED, AND THE CHECK HYBRID SYSTEM LIGHT CAME ON. THIS WAS ON RAILROAD TRACKS BUT THE CAR DID DRIVE ON THE GAS ENGINE A SHORT DISTANCE TO MAKE IT OVER THE RAILROAD TRACKS. I HAD THE CAR TOWED TO A TOYOTA DEALER WHO STATED THE INVERTER WAS BAD, BUT THAT TOYOTA WOULD REPLACE IT AS THEY EXTENDED THE WARRANTY. THIS SEEMS TO BE AN ISSUE THAT TOYOTA IS IGNORING. I ALSO OWN A 2014 TOYOTA PRIUS V WHICH IS ALSO PRONE TO THIS ISSUE. TOYOTA SHOULD ADDRESS THIS ISSUE BEYOND A MERE SOFTWARE UPDATE.

NHTSA ODI #11183833

113,000 miles · Mar 2, 2019
Service Brakes

I WAS ON DRIVING ON THE FREEWAY WHEN SUDDENLY TRACTION CONTROL LIGHT WAS ON AND BRAKES SEEMED TO HAVE LOCKED. THE CONDITIONS OF THE ROAD WERE DRY AND I WAS DRIVING THE SPEED LIMIT. THIS OCCURED ON A FEW DIFFERENT OCCASIONS. ONE DAY BRAKE LIGHT, ABS AND TRACTION LIGHT ALL APPEARED. TOOK IT INTO TOYOTA DEALERSHIP AND WAS INFORMED …

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I WAS ON DRIVING ON THE FREEWAY WHEN SUDDENLY TRACTION CONTROL LIGHT WAS ON AND BRAKES SEEMED TO HAVE LOCKED. THE CONDITIONS OF THE ROAD WERE DRY AND I WAS DRIVING THE SPEED LIMIT. THIS OCCURED ON A FEW DIFFERENT OCCASIONS. ONE DAY BRAKE LIGHT, ABS AND TRACTION LIGHT ALL APPEARED. TOOK IT INTO TOYOTA DEALERSHIP AND WAS INFORMED IT WAS BRAKE BOOSTER.

NHTSA ODI #11183661

Official recalls

6

18V684000 · Hybrid Propulsion System

Oct 4, 2018

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2014 Toyota Prius and 2012-2014 Toyota Prius V vehicles. 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: If the hybrid system shuts down unexpectedly, it can increase the risk of a crash.

Remedy: Toyota will notify owners, and dealers will update the software for the motor/generator control electronic control unit (ECU) and the hybrid control ECU as necessary, free of charge. The recall began January 22, 2019. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0V. Note: The software updates in this recall are needed even if the vehicle had the software previously updated under recalls 14V-053 or 15V-449.

16V487000 · Air Bags:side/window

Jun 30, 2016

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2010-2012 Toyota Prius, 2010 and 2012 Toyota Prius Plug-in Hybrid, and 2011-2012 Lexus CT200h vehicles. A weld in the curtain shield air bag inflator may crack causing one or both portions of the inflator to eject into the passenger cabin.

Consequence & remedy

Consequence: If either portion of the curtain shield air bag inflator ejects into the passenger cabin, there is an increased risk of injury to vehicle occupants.

Remedy: Toyota will notify owners, and dealers will install retention brackets to the curtain shield air bags, free of charge. The recall began on October 17, 2016. Owners may contact Toyota Customer Service Department at 1-800-331-4331. Toyota's number for this recall is Toyota G0U, and Lexus GLJ.

16V396000 · Seats:front Assembly:seat Heater/cooler

Jun 2, 2016

Southeast Toyota Distributors, LLC (SET) is recalling certain 2005-2011 4Runner, Highlander, Sequoia, and Sienna, 2005-2010 Avalon and Tundra, 2006-2008 Camry Solara, 2006-2010 Highlander hybrid, 2006-2011 Rav4 and Tacoma, 2007-2010 FJ Cruiser, 2007-2011 Camry hybrid, 2009-2010 Venza, 2010-2012 Prius, 1988-1990 and 2005-2010 Camry, and 1989 and 2009-2010 Corolla vehicles equipped with aftermarket accessory seat heaters with a copper strand heating element. The electrical wiring in the seat heaters may be damaged when the seat cushion is compressed.

Consequence & remedy

Consequence: If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.

Remedy: SET will notify owners, and dealers will disconnect the seat heaters, free of charge, and refund the purchase price of the seat heater accessory. The recall began on July 14, 2016. Owners may contact SET customer service at 1-866-405-4226. SET number for this recall is SET16B.

14V743000 · Seats:front Assembly:seat Heater/cooler

Nov 19, 2014

Southeast Toyota Distributors, LLC (SET) is recalling certain model year 2010-2011 Prius and Corolla, 2009-2011 Venza, 2006-2010 Avalon, 2007-2010 FJ Cruiser, 2005-2011 Sienna and Sequoia, 2006-2011 Tacoma 4x2 and 4x4, Camry, Highlander, Tundra 4x2 and 4x4, and 2007-2011 Rav4 and 4Runner. The affected vehicles may experience compression of the seat cushion which may damage the seat heater wiring.

Consequence & remedy

Consequence: Damage to the seat heater wiring could cause the wires to short, increasing the risk of the seat burning and causing personal injury to the occupant.

Remedy: SET will notify owners, and dealers will disconnect the heaters with copper strand heating elements and refund the purchase price of the seat heater accessory, free of charge. The recall is expected to began in January 2015. Owners may contact SET customer service at 1-866-405-4226.

14V053000 · Electrical System:software; Hybrid Propulsion System: Inverter

Feb 12, 2014

Toyota is recalling certain model year 2010 through 2014 Prius vehicles. In the affected vehicles, the Intelligent Power Module (IPM) inside the inverter module (a component of the hybrid system) contains transistors that may become damaged from high operating temperatures. If this occurs, various warning lamps will be illuminated on the instrument panel and the vehicle will have reduced power allowing it to only drive a short distance.

Consequence & remedy

Consequence: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. The hybrid system could also shut down completely resulting in a vehicle stall, increasing the risk of a crash.

Remedy: Toyota will notify owners and dealers will update the software for both the motor/generator control electronic control unit (ECU) and the hybrid control ECU, free of charge. If an owner experiences a failure of the inverter before the vehicle receives updated software, the dealer will repair or replace the inverter assembly with a new one at no charge. The recall began on March 21, 2014. Owners may contact Toyota at 1-800-331-4331.

Additional source detail variants (2)

Hybrid Propulsion System: Inverter

Toyota is recalling certain model year 2010 through 2014 Prius vehicles. In the affected vehicles, the Intelligent Power Module (IPM) inside the inverter module (a component of the hybrid system) contains transistors that may become damaged from high operating temperatures. If this occurs, various warning lamps will be illuminated on the instrument panel and the vehicle will have reduced power allowing it to only drive a short distance.

Consequence: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. The hybrid system could also shut down completely resulting in a vehicle stall, increasing the risk of a crash.

Remedy: Toyota will notify owners and dealers will update the software for both the motor/generator control electronic control unit (ECU) and the hybrid control ECU, free of charge. If an owner experiences a failure of the inverter before the vehicle receives updated software, the dealer will repair or replace the inverter assembly with a new one at no charge. The recall began on March 21, 2014. Owners may contact Toyota at 1-800-331-4331.

Electrical System:software

Toyota is recalling certain model year 2010 through 2014 Prius vehicles. In the affected vehicles, the Intelligent Power Module (IPM) inside the inverter module (a component of the hybrid system) contains transistors that may become damaged from high operating temperatures. If this occurs, various warning lamps will be illuminated on the instrument panel and the vehicle will have reduced power allowing it to only drive a short distance.

Consequence: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. The hybrid system could also shut down completely resulting in a vehicle stall, increasing the risk of a crash.

Remedy: Toyota will notify owners and dealers will update the software for both the motor/generator control electronic control unit (ECU) and the hybrid control ECU, free of charge. If an owner experiences a failure of the inverter before the vehicle receives updated software, the dealer will repair or replace the inverter assembly with a new one at no charge. The recall began on March 21, 2014. Owners may contact Toyota at 1-800-331-4331.

13V014000 · Air Bags:frontal:sensor/control MODULE-INACTIVE ; Seats

Jan 16, 2013

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence & remedy

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

Additional source detail variants (2)

Seats

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

Air Bags:frontal:sensor/control MODULE-INACTIVE

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

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.