2014 Toyota Prius plug-in hybrid problems
The Toyota Prius Plug-in Hybrid (often abbreviated as the Prius PHV and known as the Prius Prime in North America, South Korea, and New Zealand) is a plug-in hybrid liftback manufactured by Toyota. The first-generation model was produced from 2012 to 2016. The second-generation model has been produced since 2016. Production of the third-generation model began in 2023.
The Prius Plug-in Hybrid was the second most sold plug-in electric car in 2012, and became third-best all-time in December 2014. As sales declined after the end of its production, the Prius PHV fell to fifth place in the global ranking by November 2015, after being surpassed by both the Tesla Model S and the Mitsubishi Outlander PHEV. As of December 2017, sales were led by North America with 66,800 units, followed by Japan with 48,800, and the European market with 13,100 units. The U.S. was the leading country market with 65,703 units sold by 2017. As of December 2019, cumulative global sales of both Prius plug-in generations totaled 209,000 units.
Concept and demonstration models
The Prius Plug-In Hybrid Concept was exhibited at the September 2009 Frankfurt Motor Show, the October 2009 Tokyo Motor Show, and the December 2009 Los Angeles Auto Show. The vehicle was based on the third-generation Toyota Prius (model XW30) but outfitted with 5.2 kWh lithium-ion batteries. The selected battery capacity is the minimum required for a vehicle to be eligible for the U.S. federal tax credit of US$2,500, which under the American Clean Energy and Security Act of 2009 is applicable to the first 200,000 plug-ins sold by an automaker.
After displaying the concept version in these three shows, a global demonstration program involving 600 pre-production test cars began in late 2009 and took place in Australia, Canada, China, France, Germany, Japan, New Zealand and the United States. The demonstration vehicles were made available for lease to fleet and government customers, of which, 230 were delivered in Japan beginning in late December 2009, 125 in the U.S. by early 2010, and 200 in Europe in spring 2010. All program vehicles were equipped with data tracking devices to allow Toyota to monitor the car's usage for further development of the plug-in hybrid system.
The pre-production Prius Plug-in used three different batteries: two added batteries to provide all-electric drive and the standard hybrid battery which engages when the first two are depleted, allowing the car to operate like a regular hybrid Prius. According to Toyota, when the vehicle started, it operates in all-electric mode, drawing electrical power directly from the first battery pack. When the first battery was depleted, it disconnected from the circuit and the second pack engaged. When the second pack was depleted, it disconnected from the circuit and the vehicle defaulted to conventional hybrid mode, using the main battery as the sole electrical power source. Pack one and pack two would not reengage with the circuit until the vehicle was plugged in and charged.
According to Toyota, the demonstrator was rated at 1.76 L/100 km (134 mpg‑US; 161 mpg‑imp) on the Japanese JC08 cycle with a combined efficiency based on 43.6% of driving in EV mode, and CO2 emissions of 41 g/km. Fuel efficiency operating as a gasoline-electric hybrid, like the regular Prius, is 3.3 L/100 km (72 mpg‑US; 86 mpg‑imp) with CO2 emissions of 76 g/km.
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Common 2014 Toyota Prius plug-in hybrid problems
The 2014 Toyota Prius Plug-in Hybrid has been reported to have several common problems, primarily related to its battery and electrical systems.
EV Battery Issues
The traction battery in pre-2020 Priuses, including the 2014 model, has been reported to have issues with cell balancing. There is no modern load balancing connected to the internal inverter or the battery management system, which can lead to cells becoming quickly unbalanced. When the cells become highly unbalanced, cells can die, and the overall charge capacity of the entire battery can be halved. This issue has been reported by several owners, who have experienced a significant drop in MPG and warning lights for hybrid battery failure. Replacing the battery can cost up to $3500, as reported by one owner.
Regular Electrical Battery Failure
Several owners have reported issues with the regular electrical battery (not the hybrid one) failing. This can result in the car not starting, and in some cases, the assist battery in the rear, which starts the car, may also die. This issue has been reported to occur after 9 years, as in the case of one owner who reported the problem with their 2014 Toyota Prius Four 1.8-L 4 Cyl hybrid.
Curtain Shield Airbag Fix
A recall has been issued for the 2014 Toyota Prius Plug-in Hybrid due to a problem with the curtain shield airbags. The chambers that are welded together are cracking, causing them to loosen their embrace. This can result in the airbags not deploying properly in the event of an accident, increasing the risk of injury.
Soy-Coated Wires
There have been reports of rodents chewing on soy-coated wires in the 2014 Toyota Prius Plug-in Hybrid. This issue has been linked to an industry-wide push by automakers to replace plastic and glass-based wiring insulation with a more eco-friendly soy-based coating. Rodents are attracted to the soy-based coating, which they use for nesting material. This can result in electrical system failures and expensive repairs.
Brake Failure
There have been reports of brake failure in the 2014 Toyota Prius Plug-in Hybrid. One owner reported the problem in their 2014 Prius Plug-in, stating that the brakes failed while driving, which could have resulted in a serious accident.
In summary, the 2014 Toyota Prius Plug-in Hybrid has several common problems, primarily related to its battery and electrical systems. These issues can result in expensive repairs and decreased safety, making it important for owners to be aware of these problems and take appropriate action to address them.
How long does a 2014 Prius plug-in battery last?
between 3 to 5 years
Your 2014 Toyota Prius Plug-In battery will usually last between 3 to 5 years, but that can vary massively depending on weather conditions battery size, type of battery, and driving habits.
What is the recall on 2014 Prius plug-in?
2014 Toyota Prius Plug-in Recall
Description of Recall: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2012-2015 Prius Plug-in Hybrid vehicles. The hybrid battery contains an Electric Vehicle (EV) fuse that may fracture after repeated high-load driving conditions such as climbing long hills.
Is the 2014 Prius hybrid a good car?
The Prius is also a pleasant car to drive in the daily grind. No, it won't raise the pulse of driving enthusiasts, but it is an easy-to-park, comfortable and spacious vehicle. And then there's the Prius' strong record for reliability and longevity.
How many miles can a 2014 Prius plug-in go on electric?
Compare Side-by-Side
| 2014 Toyota Prius Plug-in Hybrid | |
|---|---|
| EPA Fuel Economy 1 gallon of gasoline=33.7 kWh Show electric charging stations near me | .2 gal/100mi of gas + 29 kWh/100mi 2.0 gal/100mi |
| 11 miles Elec + Gas All Elec: 0-6 mi 540 miles Total Range | |
| About Plug-in Hybrid Cars |
What is the plug-in problem with the 2014 Prius?
"The traction battery in pre-2020 Priuses are notorious for the cells becoming quickly unbalanced as there is no modern load balancing connected either to the internel inverter or to the battery management system, and for there being no formal remedy for this issue; when the cells become highly unbalanced, cells can ...
How long does a 2014 Prius plug-in battery last?
between 3 to 5 years
Your 2014 Toyota Prius Plug-In battery will usually last between 3 to 5 years, but that can vary massively depending on weather conditions battery size, type of battery, and driving habits.
Is the 2014 Prius hybrid a good car?
The Prius is also a pleasant car to drive in the daily grind. No, it won't raise the pulse of driving enthusiasts, but it is an easy-to-park, comfortable and spacious vehicle. And then there's the Prius' strong record for reliability and longevity.
How many miles can a 2014 Prius plug-in go on electric?
Compare Side-by-Side
| 2014 Toyota Prius Plug-in Hybrid | |
|---|---|
| EPA Fuel Economy 1 gallon of gasoline=33.7 kWh Show electric charging stations near me | .2 gal/100mi of gas + 29 kWh/100mi 2.0 gal/100mi |
| 11 miles Elec + Gas All Elec: 0-6 mi 540 miles Total Range | |
| About Plug-in Hybrid Cars |
2014 Toyota Prius plug-in hybrid car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Toyota Prius plug-in hybrid problems, we found that the most common problems with these 2023 model year vehicles are:
- Service brakes problems
- Electrical system problems
- Unknown or other problems
- Engine problems
- Vehicle speed control problems
The graph below shows statistics for all 2014 Toyota Prius plug-in hybrid vehicle components and the number of complaints received.
Latest 25 complaints 2014 Toyota Prius plug-in hybrid
The NHTSA has received 165 complaints about various vehicle components related to the 2014 Toyota Prius plug-in hybrid. Below are the 25 most recent complaints reported for 2014 Toyota Prius plug-in hybrid vehicles.
ELECTRICAL SYSTEM,SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-10-03
- VIN: JTDKN3DU4E0
- Components: ELECTRICAL SYSTEM,SERVICE BRAKES
- Summary: I was driving on the highway during rush hour when a loud beeping noice began. My 15 year old cousin was in the passenger seat and began to check for the source of the beeping. I was driving 55mph on a busy highway with no safe shoulder stop. As I was preparing for the exit, the brakes suddenly became dysfunctional. The pedal was extremely hard to press down and I found myself unable to slow down the car in enough time to avoid hitting upcoming traffic. I found myself in an urgent, life threatening situation and needed to pull over into the emergency lane located before the exit. I could not just consider my safety, but that of other drivers and my 15 year old passenger. She is traumatized. I was able to get the car to stop with my entire weight on the pedal. Once stopped, I scrambled to find the reason for the sudden brake problem, checking if anything rolled under my foot, if the floor mat was loose, if the gear shift was wrong, even checked if I accidentally hit the emergency brake. Nothing was out of place. No new dash lights. I looked in the manual. I had no information. I went to jiffy lube and they performed a diagnostic test and informed me they are unable see all the codes with hybrids because Toyota’s computer can only see Just in August I went to Toyota for my oil change, nothing was said about the brakes needing to be fixed and how repairing them now would prevent the failure of the accumulator pump system. If I had known paying $400-$500 for the brakes then would prevent having to pay $3000 to replace a pump. I would have made that sacrifice and went outside of my budget. This is paramount information that should be disclosed to all Toyota customers that take their car in for care and pay. After further research, I STRONGLY BELIEVE TOYOTA EMPLOYEES PURPOSELY WITHHOLD INFORMATION FROM THEIR CUSTOMERS NOT INFORMING CONSUMERS ABOUT AVOIDING PUMP FAILURE AND THE NEED REPAIR THEIR BRAKES AND IS COMPLICIT IN ANY INCIDENT CAUSED BY PUMP FAILURE MAY CAUSE.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-10-16
- VIN: JTDKN3DU9E0
- Components: SERVICE BRAKES
- Summary: Without warning, my brakes completely stopped working and I was fortunate enough to be somewhere I was able to pull over without being killed. Toyota is aware of this issue, but put a 10 year timeline on the complementary repair, which is totally unacceptable, as owners were not notified directly about this program, therefore how could we know it existed, was a problem, and to go get it fixed within their arbitrary deadline? I could have died losing brakes on the freeway, or even could have killed or injured others. This is a known, and severe safety hazard, and Toyota is not taking responsibility. It is unconscionable. Hoping for a class action lawsuit. It was a $5500 repair in California, which was almost the value of the car. Absolutely brutal and horrendous business practices from this company. Shame on them. I hope this agency NHTSA will add this report to the pile of others who have reported this, and actually take meaningful action for those of us who have been put at risk, and ripped off in the process.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-10-11
- VIN: JTDKN3DU0E1
- Components: SERVICE BRAKES
- Summary: My 2014 prius experienced a failing brake booster actuator assembly. I was driving when suddenly my traction control light came on and my brake pedal turned mushy. I pulled over to a parking lot and put my vehicle in park. As soon as I did this, the ABS and parking brake light both turned on. I had the vehicle towed to the Toyota dealership. They diagnosed the problem as an internal leak in the brake booster actuator assembly. This is a common problem with these vehicles, but instead of Toyota issuing a recall, they only did an extended warranty coverage of which my prius didn't fit the parameters. Now I am stuck with a vehicle that is unsafe to drive and a repair estimate of $3,900 because of one of their parts failing. This should clearly have been made a recall with the volume of prius owners experiencing this problem. What a disappointment after having 3 Toyotas for many years.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-09-24
- VIN: JTDKN3DU2E0
- Components: SERVICE BRAKES
- Summary: On [XXX] my brakes failed while driving, (brake booster and actuator) moving at 25 mph, all of a sudden lights ABS and brakes indicator light started flashing and beep. I was approaching a yellow light and attempting to slow down, my foot went to to floor and the were NO BRAKES. I used the EMG brake slow down me pulled into an empty parking lot. My vehicle is available for inspection at request. My safety was was put at risk due to having no control and coming very close to crashing into another car putting that driver at risks as well, but was blessed I was able to avoid an accident. This problem has been confirmed by Phillips Toyota in Leesburg FL #(352)728-3020. The vehicle components have not been inspected by others besides the dealer. I am 2 months over the 10yr customer support program at 102k miles. I have been complaining for the past YEAR to the dealer regarding strange noises like chirping, air deflating when pressing brakes, constant buzzing sounds from system even when car is off, and being propelled forward when going over gravel or railroad track surfaces of the ABS light goes on. This is on record and each time I’d ask, they’d mention it is the brake booster going but because there was no indicator lights or code coming up, they were unable to do anything. My last service in may 2024, I requested a diagnostic on the brake system, which I paid extra for, knowing the 10yr program was about to be expired in July. The dealer found no codes and assured me it was safe to drive and that if I were to see those warning light come on, that I was to drive the car straight to the dealer to inspect. Well, long story short, the lights came on, and immediately the were NO Brakes and I was completely out of control with no time to drive it safely to the dealer. I had it towed to the dealer and they quoted me $3000 to repair brake booster/actuator. I am working with Toyota corporate for compensation. This is a major safety issue that should be a RECALL! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-10-01
- VIN: JTDKN3DUXE0
- Components: SERVICE BRAKES
- Summary: The braking system is failing with the following codes I tested with the BlueDriver scanner. Code TypeCodeDescription ABS CodesC1241Low or high power supply coltage ABS CodesC1391Abnormal leak in accumulator Main BodyB1206P/W Master SW ECU Communication Stop Main BodyB2321D-Door Motor ECU Communication Stop Main BodyB2430LED Headlight LH Entry and StartU0142Mainbody Ecu Communication Circuit Entry and StartU0155Lost Communication with Instrument Panel Cluster Control Module The car is available for inspection. This puts the drivers, myself and fiance, at risk of catastrophic collision in the event that the brakes fail while driving. I will call Toyota to obtain a replacement of the system that has occurred with many other drivers. The vehicle has not been inspected by manufacturer yet but it is important to know that this is a serious problem that could kill people. The problem was identified when warning lights came up on the dashboard but there is also a sound coming from the brake actuator that shows a problem. The problem is due to manufacturer error, I have driven the vehicle normally.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-08-27
- VIN: JTDKN3DU7E1
- Components: SERVICE BRAKES
- Summary: So my wife is pulling into our driveway with my little ones and notices the ABS, traction control and Brake light come on. I then had the vehicle looked at by a local Toyota dealership and they tell me I'm getting code C1391 and that it's a known issue. They then tell me I'm out of my extended customer support warranty time frame and I will have to pay. According to NHTSA this is a known defect on this vehicle and it affects more than 100k Toyota Prius vehicles. So basically, we've been driving around in a vehicle that the brakes may fail at any moment and potentially kill us all but is only addressed by the manufacturer when the known failure occurs. Even then, they only address it if the error occurs during their set time frame. It seems this has been brought to NHTSA's attention on a few occasions and nothing has been done. I would think brakes are something that warrants a recall on a known defect. Thankfully my wife and kids weren't doing 70mph down the highway when the brakes all of the sudden stopped working.
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 2024-09-26
- VIN: JTDKN3DU5E1
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: The contact owns a 2014 Toyota Prius. The contact stated while driving at an undisclosed speed, the brake pedal was depressed with several unknown warning lights illuminated. The vehicle was towed to the dealer to be diagnosed. The contact was informed that the brake master cylinder and the brake booster pump assembly had failed and needed to be replaced. The manufacturer was not made aware of the failure. The failure mileage was approximately 82,000.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-09-09
- VIN: JTDKN3DU8E1
- Components: SERVICE BRAKES
- Summary: This vehicle lost braking assist while in motion on a well known problem from TOYOTA. There has been class action lawsuits on this very fact. Toyota issued a customer service warranty for vehicles that have less than 150,000 and filed before March 2024! My car has 127k and failure was Sept 9 out of the warranty. I understand that there is a line if the sand however this needs to be a recall as it effects so many vehicles and it is dangerous! I am asking you urge them to make a recall for this! I have paid for this repair and am furious but I had to do it!
SERVICE BRAKES PROBLEM
- Date Of Incident: 2023-04-15
- VIN: JTDKN3DU1E0
- Components: SERVICE BRAKES
- Summary: ABS actuator failed in April of 2023 after more than a year of constant whirling, which my mechanic didn't diagnose until after my dashboard lit up with errors. The issue was diagnosed by AAA mechanics after the dashboard warning lights lit up, with a $4,000 cost to repair. Brakes are spongy, car is rarely driven at this time. We were told that the brakes would continue to work, but the ABS system would not. Now the vehicle beeps constantly when driving, which appears to mean the brakes could fully fail at any time. Based on subsequent research, Toyota was quietly fixing the ABS acuator issue until last year, but it was not offered when my vehicle was brought in last year during another recall. When it failed the car was under 10 years and 150K.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-08-18
- VIN: JTDKN3DU2E1
- Components: SERVICE BRAKES
- Summary: My car started exhibiting signs of a known brake booster/brake systems failure for Priuses in the 2010-2015 range. These include the ABS, brake system, and skid/traction lights coming on and a 3-5 cycling whirring noise. The brake sensitivity is also altered. This happened suddenly today. I checked the battery voltage (normal), so this is not causing the issue. After investigating online, I have discovered that many consumers have experienced the same issue and are being denied a recall/repair coverage by Toyota. Today, I am reaching out to Toyota to see if the replacement/repair, which should be in the range of $3-4k will be covered by Toyota. According to numerous other Prius owners online, this issue is being denied by Toyota for coverage, even though it is something they are fully aware of. This is unacceptable and dangerous on their part. My vehicle has 110k miles, was leased used last year, and has not had any issues otherwise. I am up to date with all routine maintenance, including getting my pads replaced and rotors maintained last year as well as new tires.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-08-10
- VIN: JTDKN3DU1E1
- Components: SERVICE BRAKES
- Summary: Brake warning lights illuminated and loud beeping for the first time. Took the car to local repair shop who advised me to take it to the dealership. Dealership indicates that R&R Brake Booster assembly with master cylinder and brake booster pump assembly need to be replaced at over $3100 and brakes are at risk of failure. I researched and found the NHTSA Customer Support Bulletin - [XXX] indicating this known issue. The support period expired in March and mileage has now exceeded the limit for support. Though I have had the car in the dealership for service many times, this was never brought to my attention. The dealership advised me to contact Toyota. Toyota then advised me to contact NHTSA about the problem. Further research indicates ongoing problems with this issue that have not been resolved - [XXX] should have issued a recall for this important safety issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-07-24
- VIN: JTDKN3DU8E1
- Components: SERVICE BRAKES
- Summary: Brake Booster Assembly in my 2014 Toyota Prius began cycling more often than usual in December 2023. By March 2024 it began cycling approximately every 30 seconds. Randomly while stopped or parked, there would be four warning lights illuminated on the dash - SLIP indicator, both Brake System Warning Lights - the word "Brake" and the "((!))", and ABS Warning Light. By June 2024, I would also randomly lose stopping power & a great distance was necessary to stop the vehicle. I took the Prius into my local Toyota Service Center where it was recommended both the Brake Booster Pump and Brake Booster Actuator be replaced. When I brought up Toyota's Customer Support Program for which my Prius is eligible in terms of age, mileage, and symptoms, I was told a DTC is required to verify the issue. According to this local Toyota dealership, the Master Tech confirming the issue and recommending replacement is not sufficient. Since the lights were illuminated, I asked why there was no stored DTC. They responded "Well, I'm not sure" and continued to reference the required DTC. This brake assembly is an issue that Toyota has acknowledged, but fails to accept full responsibility by issuing a recall. This gross negligence by a vehicle manufacturer.
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 2024-08-06
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: The contact owns a 2014 Toyota Prius. The contact stated that while driving at an undisclosed speed and attempting to stop the vehicle, the brake pedal was stiff and would not depress easily, requiring exhaustive effort to depress and bring the vehicle to a complete stop. The brake, traction control, and ABS warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a brake booster and brake pump assembly failure. The vehicle was repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 116,000. The VIN was not available.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-05-01
- VIN: JTDKN3DU8E0
- Components: SERVICE BRAKES
- Summary: I lost the brakes. The Brake actuator failed. I was able to swerve around traffic to avoid a collision and get the car towed home. No warning lamps until it failed. The brake actuator was replaced and I saved the old, defective component.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-06-01
- VIN: JTDKN3DP6E3
- Components: SERVICE BRAKES
- Summary: Complete failure of ABS system. Error code C1391. This is a well-known problem with Gen 2 and 3 Priuses.
SERVICE BRAKES, HYDRAULIC,TRACTION CONTROL SYSTEM PROBLEM
- Date Of Incident: 2024-07-16
- VIN: JTDKN3DP3E3
- Components: SERVICE BRAKES, HYDRAULIC,TRACTION CONTROL SYSTEM
- Summary: The contact owns a 2014 Toyota Prius Plug-In Hybrid. The contact stated while driving at various speeds and attempting to depress the brake pedal, the brake pedal was very stiff. The contact stated that the ABS, brake lights, and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the brake power booster and brake power gasket. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 167,000.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-06-18
- VIN: JTDKN3DU8E0
- Components: SERVICE BRAKES
- Summary: The brake booster and master cylinder failed on my Prius. The diagnostic code is C1391 Abnormal leakage in accumulator, which is a code covered by Toyota’s prior recall on this vehicle.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-05-23
- VIN: JTDKN3DU0E1
- Components: SERVICE BRAKES
- Summary: Drove car to work one morning and it was VERY difficult to brake almost causing an accident. Brought it into the Toyota shop and they said this code came up: DTC code C1391: Abnormal leak of accumulator pressure ,recommending to replace brake booster and brake booster pump assembly internal malfunction of components.The necessity of its routine replacement is vital as an old or malfunctioning unit leads to decreased braking performance and ultimately brake failure. They told me that there was a program offered to customers where they would replace this known issue, but I'm 2 months outside of this so the issue is no longer covered under Toyota. The fact that this is a known issue that Toyota does not want to recall is ridiculous and now they want customers to pay for it.
UNKNOWN OR OTHER,ENGINE PROBLEM
- Date Of Incident: 2024-05-03
- VIN: JTDKN3DUXE1
- Components: UNKNOWN OR OTHER,ENGINE
- Summary: 2014 Toyota Prius: While driving at high speed the engine stalled unexpectedly, steering and braking were not effected. Was able to safely coast to a stop in the breakdown lane and after a few minutes, restart the engine and proceed driving. Another event occurred on the entrance ramp onto an interstate highway. I was able to pull over safely and the car restarted after a short delay. This seems to be a very dangerous condition. Toyota dealer service said they could not determine the cause and they know of no recall. I found online a reference to NHTSA Recall # 20V369000 that referred to "unexpected hybrid power system shut down." That is what happened to me.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-05-02
- VIN: JTDKN3DU7E1
- Components: SERVICE BRAKES
- Summary: Noticed a whirring/hydraulic sound that occurred every 5-10 seconds. Could only hear sound if no music was playing and not driving at highway speeds. Sound was noticeable upon parking or exiting vehicle. Only noticed sound because it occurred more frequently than usual. Spouse who is hard of hearing could not hear sound at all. My understanding of sound was that it was normal for vehicle, however, within the time span of approximately 2 weeks, sound became more frequent. Researched noise, and found it was the brake booster assembly pressurizing. Took vehicle to dealership to have it confirmed. Per dealership "Accumulator inside brake booster has internal leak causing accumulator to constantly run." Brakes did not show signs of loss of function and there was no indicator lights on dash to warn me of problem with vehicle. When I inquired with dealership of how much longer they would last, they informed me they could not say, and that it was likely they could go out at any time. Called Toyota Customer support to see if they could provide any assistance. They stated a support program had been issued back in 2021, but is now expired. According to support program 21TE01, Toyota was willing to replace brake boosters that had already failed and could be confirmed with diagnostic code. However, as the part had not failed or showed signs of failure at that time, vehicle would not have qualified, and it was prior to current ownership. Owners should not have to wait for their brakes to fail in order to recognize they have an issue. If I had not heard the noise and brought it in BEFORE an accident occurred, it could have been very dangerous indeed. Now I am left to pay $2500 out of pocket for repair of a faulty/failing brake booster assembly.
SERVICE BRAKES PROBLEM
- Date Of Incident: 2024-04-07
- VIN: JTDKN3DU4E1
- Components: SERVICE BRAKES
- Summary: We were on the interstate when suddenly our cruise control stopped working. We then noticed several lights on the dashboard lit up, related to traction control, brakes, and ABS system. We could still use the car brakes, but it took more pressure than usual to engage the brakes. We pulled over to an auto parts store, but they stated there were no ODB codes logged. After researching online, I suspected a brake booster failure as described in Toyota's Customer Support Bulletin ZJB. At my earliest convenience, I brought the car in to a Toyota dealership, who confirmed that the brake booster and master cylinder were failing and needed to be replaced. Thankfully, the brakes did not fail outright, but the situation could have ended much worse. I understand by reading online that this is not an isolated incident. I encourage this issue be more thoroughly investigated so that a proper recall can be issued if needed, to bring this to the attention of other drivers of affected vehicles.
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2024-03-11
- VIN: JTDKN3DU7E0
- Components: UNKNOWN OR OTHER
- Summary: Error code P0A94 Inverter/converter came and message to pull over. 9 yr 6 months.103365 miles. Toyota has this issue but never did a recall on my vehicle.
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE PROBLEM
- Date Of Incident: 2024-03-08
- VIN: JTDKN3DUXE1
- Components: SERVICE BRAKES,FORWARD COLLISION AVOIDANCE
- Summary: Code C1391 - Abnormal Leak in Accumulator. Accumulator for the brake pump is not holding pressure so the pump has to keep turning on to refill. Brake pump and ABS unit have to be replaced. In emergency situations, a malfunctioning ABS module leads to increased stopping distances and loss of steering control during hard braking. Lastly, tires can be worn more easily, which could lead to tire blowouts. This puts myself and others at risk for deadly consequences due to an increased chance for collision if I am unable to control or stop my car. This problem has been confirmed by Toyota and multiple years of Toyota vehicles have had their brake actuator assembly warranty enhanced. The warranty enhancement program has secondary coverage, which is applicable for 10 years from the first date of use, or 150,000 miles, whichever occurs first. Currently I meet the 10 year requirement but have 162,000 miles on my prius, which is completely frustrating. Many have posted with the same problem of being just outside the warranty. The vehicle has been inspected at a Toyota dealership. A symptom was noticeable starting from over 1 ½ years ago when I was under 150,000 miles. The car produced clicking sounds when the brake pedal was held down at traffic lights. Once released, the clicking sound would stop. I spoke with a Toyota mechanic and he told me it was an issue with the brake pump and ABS unit, but Toyota would not repair it until it completely failed. He also mentioned that there was coverage available for the ABS unit once it failed as it was a common issue for the Toyota Prius. If Toyota warranty allowed for the brake pump and ABS unit to be replaced when the symptoms appear instead of when it completely fails, I would have qualified with my mileage. Not only is the repair costly, but for those who cannot afford it and need to continue to use their car despite the brake pump and ABS unit failure, risk their own and others safety when continuing to operate their vehicle.
STEERING,ELECTRICAL SYSTEM,EXTERIOR LIGHTING PROBLEM
- Date Of Incident: 2024-02-05
- VIN: JTDKN3DU0E0
- Components: STEERING,ELECTRICAL SYSTEM,EXTERIOR LIGHTING
- Summary: I was dropping my daughter off at school and the car completely shut down on me and turned off in the middle of an intersection. I have just had brakes and oil changed but ever since I got the car codes keep popping up and when checked it’s all good. Front lights keep glitching and even with new brakes there is still a bad sound. My dash computer thing keeps going in and out. It happens a lot more when it rains and makes a sizzling sound I’m afraid to drive it in the rain. I’m besides myself how the car turned off on me and my child we couldn’t move I could accelerate and we almost got hit then another light came on and I couldn’t even turn my wheel. Very dangerous
SERVICE BRAKES PROBLEM
- Date Of Incident: 2023-12-12
- VIN: JTDKN3DU1E1
- Components: SERVICE BRAKES
- Summary: the brakes have not failed yet, but there is a known issue with the brake booster on my model year. I would like to have the government force Toyota to guarantee the brakes for a longer period of time. currently Toyota has extended the warranty out 10 years / 150k miles from date of first use. Since these cars last so long, this should be 20 years / 300k miles from date of first use.
2014 Toyota Prius plug-in hybrid recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 1 recalls for different components of the 2014 Toyota Prius plug-in hybrid.
- Manufacturer: Toyota Motor Engineering & Manufacturing
- Components: HYBRID PROPULSION SYSTEM
- Summary: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2012-2015 Prius Plug-in Hybrid vehicles. The hybrid battery contains an Electric Vehicle (EV) fuse that may fracture after repeated high-load driving conditions such as climbing long hills.
- Consequence: The failed fuse may cause the hybrid system to shut down resulting in the loss of power. Loss of power while driving at higher speeds can increase the risk of a crash.
- Remedy: Toyota will notify owners, and dealers will replace the EV fuse, free of charge. The recall is expected to begin January 8, 2018. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is H0R.
Additional sources
More sources of information about 2014 Toyota Prius plug-in hybrid problems:
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