1,607 of the
15,583 complaints filed about the Toyota Prius
are about the electrical system —
10% of everything owners reported.
The worst model year for it is 2007.
My vehicle has 105492 miles and ABS light, Trackion and Brake light went on. I could hear a buzzing sound from the brake actuator every 5 seconds. The brake actuator and master cylinder was failing. According to the dealership failure of brake actuator and master cylinder is a common safety issue with Toyota Prius. The failure of the actuator can lead to failure in the braking system and a crash. Online research shows that several customers have reported this issue. The Claremont Toyota quoted me $3646 to fix this issue. I contacted Toyota of America and they informed that they cannot cover these repairs case number 260515002576.I took my vehicle to a private mechanic. I paid $2312 for parts and labor to fix this safety issue. I would like to file a complaint against Toyota for not addressing this critical safety issue.
NHTSA complaint #11755768 — an unverified report by a vehicle owner.
I am submitting this complaint regarding a serious safety concern involving the brake actuator/booster assembly on my 2014 Toyota Prius. My vehicle has experienced failure of this critical braking component and has been unable to be properly repaired since November due to difficulty obtaining the correct replacement parts. This involves a major safety system required for proper braking operation. Brake actuator/booster assembly. Diagnostic codes: B1206, B2321, C1252, C1253 C1256. Toyota previously acknowledged brake actuator concerns through Customer Support Program ZJB. However, my vehicle is outside the program limits despite experiencing what appears to be the same type of failure reported by many other Prius owners. Since November, I have faced difficulty obtaining the correct parts, reports of nationwide backorders or limited availability, conflicting information regarding updated Toyota part numbers, and concerns about repair providers advertising new OEM parts that may actually be aftermarket or incorrect components. This creates a safety concern because owners experiencing brake failures may be unable to obtain timely repairs using verified, appropriate parts. Repair estimates have ranged from approximately $3,000 to over $4,000, including a Toyota dealership estimate of approximately $4,100. This creates a significant barrier to restoring a vehicle to safe operation, especially involving a component Toyota has previously addressed through a customer support program. I request that NHTSA review this complaint and similar reports to determine whether further investigation is warranted regarding Toyota Prius brake actuator failures, parts availability issues, and whether additional manufacturer action or support is needed. A vehicle’s braking system is a fundamental safety component. Owners should be able to obtain a safe and reliable repair without months of delay or uncertainty regarding replacement parts.
NHTSA complaint #11754349 — an unverified report by a vehicle owner.
Pulling out of a parking stall, when put vehicle in drive, the engine revved up and accelerated - vehicle crashed, the brakes did not work- there was skid marks. Floor mats are factory OEM were installed properly. I did not hit the accelerator and I am in good health and mind. I have driving for over 30 years, never had and accident nor a ticket! - A county officer was at the seen and left me with vehicle that had to be towed away. The Vehicle is a total loss. I have insurance but felt that this incident need to be reported, There is no safety recalls and the vehicle was always property maintained
NHTSA complaint #11750516 — an unverified report by a vehicle owner.
The incident involved having to press extremely hard on the brake pedal to stop the car, while it was uphill in the middle of the road. The car started going backward and was throwing ABS, Master Warning Light, Brake System Warning Light and Warning Buzzer, Brake System Warning Light, and SLIP Indicator signals. This was a highly distraughtful situation on the road. Diagnostics showed C1391 Diagnostic Trouble Code on the 2015 Toyota Prius: brake booster and brake booster pump problem. When pressing the brake pedal there is a high pitched metal scraping noise. Toyota coverage program is only applicable for 10 years from the date of first use or 150,000 miles, whichever occurs first. Many cars run well for over 10 years with good care, so the 10 year cap barely covers anything. This is highly unfair and borderline scamming for an issue so severe, which can cause big accidents on the road. In all honesty, this is a life or death situation when it comes to not being able to properly brake while driving. This should be a full recall!!
NHTSA complaint #11742921 — an unverified report by a vehicle owner.
The brake pump and actuator on my 2015 prius has been faulty and the repair was apparently covered under the customer support program but it expired in December. I had no knowledge of it and when I took my car in to a toyota dealership, no one told me about about the profram but told me that they needed to be replaced. I did not get the repair because of the hefty cost and I missed the deadline. My safety and the safety of other drivers were put at risk for not allowing me to be notified by it and my car being at risk for my brakes failing at any time. Their were absolutely no warning lights on my vehicle as well.
NHTSA complaint #11741829 — an unverified report by a vehicle owner.
The contact owns a 2023 Toyota Prius. The contact received a recall notification, NHTSA Campaign Number: 26V049000 (Electrical System, Latches/Locks/Linkages)however the parts were unavailable. The dealer was contacted, the contact was informed that the parts were unavailable. The manufacturer was not contacted. The contact had not experienced any failure regarding the unrepaired recall.
NHTSA complaint #11739475 — an unverified report by a vehicle owner.
Year/Make/Model: 2013 Toyota Prius • Component: Brake Booster Assembly with Master Cylinder (Part #47070-47060) Description of the Defect: After approximately 30–40 minutes of driving, my dashboard illuminates with the Brake, ABS, and VSC warning lights simultaneously. The brake pedal becomes inconsistent and requires significantly more effort to stop the vehicle. This is a known internal fluid leak within the brake booster assembly that causes the accumulator pump to run continuously and ultimately reduces braking performance — a direct safety hazard. Why This Requires Federal Attention: This is not an isolated incident. Hundreds of 2013 Prius owners have reported identical symptoms, with associated diagnostic trouble codes C1391, C1252, C1256, and C1253. Toyota acknowledged this defect by issuing Technical Service Bulletin TSB-0089-20 and a Customer Support Program (ZJB) providing limited extended warranty coverage. However, that program was not well publicized . I was never informed as a vehicle owner . And it has now expired, leaving thousands of owners with a dangerous defect and repair bills costing thousands . A safety defect of this magnitude — one that can result in sudden, significant loss of braking ability — should not have an expiration date on its remedy. Toyota has not issued a mandatory recall, and owners continue to unknowingly drive vehicles with compromised brake systems. Requested Action: I respectfully urge NHTSA to: 1.Open a formal investigation into this defect across all affected 2013–2015 Toyota Prius model years 2.Require Toyota to issue a mandatory safety recall 3.Compel Toyota to cover repair costs for all affected owners regardless of mileage or age of vehicle
NHTSA complaint #11736173 — an unverified report by a vehicle owner.
The contact owns a 2010 Toyota Prius. The contact stated that while driving at an undisclosed speed, a strong and unusual odor was detected inside the vehicle with no warning lights illuminated. The contact further stated that the following day, upon entering the vehicle, both the contact and the contact’s spouse experienced headaches, nausea, and cognitive discomfort. Concerned about possible exposure to harmful fumes, the contact inspected the vehicle and determined that the vehicle’s battery appeared to be inoperable. The vehicle was taken to a dealer. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The contact expressed concern that the failure presents a serious safety hazard due to potential exposure to toxic fumes within the cabin. The contact noted that the situation could have been more severe if a child had been present in the vehicle at the time of the incident. The failure mileage was approximately 75,000.
NHTSA complaint #11735753 — an unverified report by a vehicle owner.
The contact owns a 2010 Toyota Prius. The contact stated that while driving at an undisclosed speed, a strong and unusual odor was detected inside the vehicle with no warning lights illuminated. The contact further stated that the following day, upon entering the vehicle, both the contact and the contact’s spouse experienced headaches, nausea, and cognitive discomfort. Concerned about possible exposure to harmful fumes, the contact inspected the vehicle and determined that the vehicle’s battery appeared to be inoperable. The vehicle was taken to a dealer. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The contact expressed concern that the failure presents a serious safety hazard due to potential exposure to toxic fumes within the cabin. The contact noted that the situation could have been more severe if a child had been present in the vehicle at the time of the incident. The failure mileage was approximately 75,000.
NHTSA complaint #11735753 — an unverified report by a vehicle owner.
My 2013 Toyota Prius with only 99,000 miles is experiencing a brake system failure. The brake warning light, ABS light, and traction control light all illuminate. The brake actuator pump runs every 10 seconds, indicating loss of hydraulic pressure. Safety concern: This issue affects braking performance and disables ABS and traction control, creating a safety hazard, especially in emergency braking situations. This appears to be a known issue with Toyota Prius brake actuator assemblies. Toyota previously issued a warranty extension, but my vehicle is now outside the time window despite low mileage. This failure occurred prematurely and without warning. What happened: The warning lights temporarily went off after adding brake fluid but returned shortly after. The pump continues to cycle frequently, indicating system failure.
NHTSA complaint #11730517 — an unverified report by a vehicle owner.
Odometer Fraud. The contact purchased a 2012 Toyota Prius. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 187,000, and at the time of registration, it was discovered that the mileage was 227,000.
NHTSA complaint #11730416 — an unverified report by a vehicle owner.
The contact owns a 2025 Toyota Prius. The contact stated that while the vehicle was parked, the driver’s side front door became inoperable while using the controls. The door could be opened from the front passenger’s side of the vehicle. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 26V049000 (Electrical System, Latches/Locks/Linkages). The failure mileage was 21,000.
NHTSA complaint #11728761 — an unverified report by a vehicle owner.
The contact owned a 2023 Toyota Prius. The contact received notifications of NHTSA Campaign Numbers: 26V049000 (Electrical System, Latches/Locks/Linkages) and 24V274000 (Electrical System, Latches/Locks/Linkages); and requested to be removed from the recall distribution list. The local dealer and manufacturer were contacted.
NHTSA complaint #11728543 — an unverified report by a vehicle owner.
The contact owns a 2025 Toyota Prius. The contact stated that while driving at an undisclosed speed, the rear driver’s side door unexpectedly opened while a minor was seated inside the vehicle. The message that the rear door was unlocked was displayed. The dealer was notified of the failure, but the vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 26V049000 (Electrical System, Latches/Locks/Linkages). The vehicle was not repaired. The failure mileage was 3,900.
NHTSA complaint #11728366 — an unverified report by a vehicle owner.
i have have 2 problems, both was recalls, but this one they say expired in 2021 when i bought the car and toyota dealer didnt tell me had recall so i could fix it before it expired. there is a class action lawsuit in the brake booster, master cyclinder actuator abs pump fialing loosing brakes making grrr noises leaking all brake fluid out continously dangerous to drive can cause bad accident wreck since i drive down the hwy alot and this is the only car i have to drive, i also have dc inverter module /sensor that is killing off 3 batteries now that i installed in 3 months, and toyota dealers wont fix unless it shows error but its a recall so since problen should fix this recall but wont pay for it to fix it even though it a recall right now that is not expired. im upset 3 dealers wont do it unless then charge me to do it. when toyotal mfg take it to any dealer and they will fix free but no one will do it. toyota mfg needs to make these dealers fix these 2 recalls on this car that can kill me and my passengers and anyone on the road that i could hit by not haivng controll brakes or the hybrid system shuttong completely down and could even kill a pedestrian with these 2 recalls that dealers wont fix but mfg said they need to everyone with these cars i see are having these same problems. need make the toyota mfg and dealers fix these free of charge before more people get killed injuried or cause more accidents ,
NHTSA complaint #11723750 — an unverified report by a vehicle owner.
Odometer Fraud. The contact purchased a 2022 Toyota Prius. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 29,909. At the time of the registration, it was discovered that the mileage was 173,000.
NHTSA complaint #11723906 — an unverified report by a vehicle owner.
On August 15, 2025, I was backing my vehicle when the rear view camera screen went blank, providing no image of what was behind me. With no warning and no image, I collided with a rock and landscape, causing damage to the rear of my vehicle. At the time of this incident, my vehicle had an open, unrepaired safety defect under Safety Recall 25TA13, which specifically addresses the condition that the rear view camera image may freeze or not display while reversing. I was not aware the recall existed at the time of my accident, and the recall remedy was not completed on my vehicle until February 12, 2026 — nearly six months after the incident. I filed a claim with Toyota Motor North America. They inspected the vehicle on February 11, 2026, found the camera functioning at that time (after the recall had since been remedied), and denied my claim. They cited owner's manual language advising drivers not to rely solely on the backup camera, but did not address the fact that the recall was unrepaired at the time of the accident. Additionally the parking collision warning and automatic braking should have engaged. The rock impacted the car right near one of the car cameras....so the collision warning and braking should have engaged. I am filing this complaint because I believe the unrepaired recall directly caused my inability to see behind my vehicle, and that Toyota's delay in notifying me and completing the remedy contributed to this incident. I am requesting that NHTSA review whether Toyota's notification and remedy timeline for Recall 25TA13 was adequate, and that this incident be added to the record of complaints associated with that recall.
NHTSA complaint #11723621 — an unverified report by a vehicle owner.
Vehicle has an active safety recall where the rear hatch may open while driving. Manufacturer states there is no remedy until August 2026, making the vehicle unsafe to operate. I am still making loan and insurance payments on a vehicle that cannot safely be used due to the recall.”
NHTSA complaint #11723455 — an unverified report by a vehicle owner.
brake booster that was a recall that toyota said expired in 2020 when i bought the vehicle and the toyotal dealer didnt inform me of the recall to fix it said everything was fine when it was not, i had a dc inverter sensor brake booster issues and now it ills off my 12volt battery every time i put one in lasts about 1 mth, upset dealer never told me this wjhen took in tel me any recalls or probelms, they said none, they lied to me. it kills off my 12volg agm batteries in the last 7 mths been having braking booster issues problems grrr,,, noise all the time when the car is off too, its killing off my hybrid system and my temathetics module is having issues too because of all this and evey battery i put in the car, i want the ntc gov to have toytota recall fix these problems with my car and not expire the recall they had in 2020 cause now i cant fix my car cause of it, i was lied to by the lavista toyota dealer that it has no probblems in 2020 of august when i bought it no recalls and this recall could have been fixed if they would have been honest. unexpire the recall on my brake booster and my dc inverter and sensors probelms killing off my new batteries all the time. call me right away or email me about this, its a urgent matter life or death situation with this car, since the brakes are failing and i have to drive it every day and toyota mfg or dealer wont fix cause says expired recalls cant fix it.
NHTSA complaint #11721212 — an unverified report by a vehicle owner.