NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
27 reportsClear category filter110,000 miles · Jul 13, 2021
Electrical SystemHybrid Propulsion System
The contact owns a 2015 Toyota Prius. The contact stated while attempting to start the vehicle, there were several unknown warning lights illuminated. Additionally, the Hybrid System failure message was displayed on the instrument panel. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it wa…
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The contact owns a 2015 Toyota Prius. The contact stated while attempting to start the vehicle, there were several unknown warning lights illuminated. Additionally, the Hybrid System failure message was displayed on the instrument panel. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the inverter to be replaced. The vehicle was not repaired but was pending the repair. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 20V369000 (Hybrid Propulsion System) however, the Vin was not included. The manufacturer had not been informed of the failure. The failure mileage was approximately 110,000.
NHTSA ODI #11424551
Mileage unknown · Jun 8, 2021
Electrical SystemFire
During routine low speed suburban driving, a fire started under the hood in the right front of the car. The smoke was first noticed by a pedestrian so I pulled over, got out of the car, and called 911. I had no prior warning of any sort. The fire completely destroyed the car. This is being investigated by Toyota. I have photos a…
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During routine low speed suburban driving, a fire started under the hood in the right front of the car. The smoke was first noticed by a pedestrian so I pulled over, got out of the car, and called 911. I had no prior warning of any sort. The fire completely destroyed the car. This is being investigated by Toyota. I have photos and would be happy to provide more details.
NHTSA ODI #11420093
Mileage unknown · May 27, 2021
Electrical SystemFuel/propulsion SystemPower Train
When I looked up my car on Kelly Blue Book for pricing, it said that it has been recalled as of 2020. I was not aware of this at all and could have got into a serious accident. I recently purchased a 2015 Toyota Prius Hybrid in February and not even my saleswoman told me that it has been recalled. It has a sleuth of issues that …
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When I looked up my car on Kelly Blue Book for pricing, it said that it has been recalled as of 2020. I was not aware of this at all and could have got into a serious accident. I recently purchased a 2015 Toyota Prius Hybrid in February and not even my saleswoman told me that it has been recalled. It has a sleuth of issues that came with it.
NHTSA ODI #11418762
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
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
35,000 miles · Sep 4, 2019
Electrical SystemService Brakes
TL* THE CONTACT OWNS A 2015 TOYOTA PRIUS. WHILE THE CONTACT'S DAUGHTER WAS DRIVING AT AN UNKNOWN SPEED, THE BRAKE WARNING INDICATOR ILLUMINATED. THE CONTACT INFORMED HIS DAUGHTER TO CHECK UNDER THE HOOD FOR POSSIBLE LOW BRAKE FLUID. WHEN EVERYTHING CHECKED OUT, THE CONTACT'S DAUGHTER RESTARTED THE VEHICLE AND THE WARNING INDICAT…
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TL* THE CONTACT OWNS A 2015 TOYOTA PRIUS. WHILE THE CONTACT'S DAUGHTER WAS DRIVING AT AN UNKNOWN SPEED, THE BRAKE WARNING INDICATOR ILLUMINATED. THE CONTACT INFORMED HIS DAUGHTER TO CHECK UNDER THE HOOD FOR POSSIBLE LOW BRAKE FLUID. WHEN EVERYTHING CHECKED OUT, THE CONTACT'S DAUGHTER RESTARTED THE VEHICLE AND THE WARNING INDICATOR TURNED OFF. THE CONTACT RECEIVED A CUSTOMER SUPPORT PROGRAM NOTIFICATION (ZJB) REGARDING A DEFECT WITH THE BRAKE BOOSTER OR BRAKE BOOSTER PUMP, WHICH COULD CAUSE THE BRAKE LAMP WARNING INDICATOR TO ILLUMINATE. THE CONTACT NOTIFIED FRONTIER TOYOTA (23621 CREEKSIDE RD, VALENCIA, CA 91355, 661-255-7575) OF THE NOTIFICATION AND WAS INFORMED THAT A DIAGNOSTIC TEST WOULD NEED TO BE PERFORMED BEFORE THEY COULD MAKE ANY REPAIRS. THE MANUFACTURER WAS ALSO NOTIFIED OF THE NOTIFICATION AND PROVIDED THE SAME INFORMATION AS THE DEALER. THE MANUFACTURER PROVIDED CASE NUMBER: 1909041948. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 35,000.
NHTSA ODI #11253199
89,000 miles · Apr 5, 2019
Electrical SystemPower Train
VEHICLE JERKED VIOLENTLY AND HAD LOSS OF POWER ON HIGHWAY AT SPEED OF 65MPH GOING STRAIGHT. TOYOTA EVALUATED AND DETERMINED THE INVERTER WAS BURNT DUE TO OVERHEATING CAUSING HYBRID SYSTEM TO FAIL. TOYOTA STATED WAS NOT COVERED BY VIN FOR EXISTING RECALL.
NHTSA ODI #11194080
40,000 miles · Dec 29, 2018
Electrical System
WHILE DRIVING, LEFT SIDE OF INSTRUMENT PANEL WENT DARK. NO SPEED INDICATION AND CRUISE CONTROL TRIPPED OFF. STARTED CAR NEXT DAY AND INSTRUMENT PANEL WAS NORMAL. WHILE SITTING IN DRIVEWAY WITH ENGINE RUNNING, ENGINE STOPPED AS NORMAL FOR THE HYBRID PRIUS, WHEN THE ENGINE TURNED OFF, THE LEFT SIDE OF THE INSTRUMENT PANEL AGAIN…
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WHILE DRIVING, LEFT SIDE OF INSTRUMENT PANEL WENT DARK. NO SPEED INDICATION AND CRUISE CONTROL TRIPPED OFF. STARTED CAR NEXT DAY AND INSTRUMENT PANEL WAS NORMAL. WHILE SITTING IN DRIVEWAY WITH ENGINE RUNNING, ENGINE STOPPED AS NORMAL FOR THE HYBRID PRIUS, WHEN THE ENGINE TURNED OFF, THE LEFT SIDE OF THE INSTRUMENT PANEL AGAIN WENT DARK. DIMMER SWITCH AT FULL BRIGHT AND NOTHING BLOCKING MIRROR FOR COMBINATION PANEL (INSTRUMENT CLUSTER).
NHTSA ODI #11163999
3,000 miles · Aug 8, 2017
Electrical SystemSuspensionVehicle Speed ControlCrashInjury
I BACKED OUT OF A CARPORT AND PLACED MY CAR IN ACCELERATION AND IT PICKED UP SPEED AND THEN HIT A WALL AT AN APARTMENT COMPLEX.
NHTSA ODI #11013735
31,070 miles · Jan 18, 2017
Electrical System
TOYOTA SOY WIRING CLASS ACTION LAWSUIT! THE WIRE HARNESS CONTAIN SOY WIRING MATERIALS THAT ARE VERY ATTRACTIVE TO RODENTS, RESULTING IN COSTLY REPAIRS. PARKED MY CAR AT WORK (ON JANUARY 18 2017) IN A FULL PARKING LOT AT A DEALERSHIP WITH DOZENS OF OTHER CARS BUT ONLY MY CAR HAD THE WIRE HARNESS CHEWED BY RODENTS, AND OF DOZE…
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TOYOTA SOY WIRING CLASS ACTION LAWSUIT! THE WIRE HARNESS CONTAIN SOY WIRING MATERIALS THAT ARE VERY ATTRACTIVE TO RODENTS, RESULTING IN COSTLY REPAIRS. PARKED MY CAR AT WORK (ON JANUARY 18 2017) IN A FULL PARKING LOT AT A DEALERSHIP WITH DOZENS OF OTHER CARS BUT ONLY MY CAR HAD THE WIRE HARNESS CHEWED BY RODENTS, AND OF DOZENS OF CARS AROUND MY CAR, THE RODENTS CHOSE MY CAR, THE 2015 PRIUS BECAUSE THE WIRING IN THE ENGINE BAY ARE MADE OF SOY WHICH ATTRACTS RODENTS. HTTP://WWW.WTHR.COM/ARTICLE/13-INVESTIGATES-LAWSUIT-SAYS-TOYOTA-VEHICLES-ATTRACT-RODENTS-CAUSING-COSTLY-REPAIRS%C2%A0
NHTSA ODI #10946260
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.
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