general problems of the 2012 Toyota Prius

2012 Priusv has intermittent vsc and traction control when cornering left or right at slow speeds, as less than about 20mph, 5-20. This is happening on dry road conditions at unpredictable times. The vehicle may deceleration and have a lungeing behavior with traction and or bracking interrupted momentarily. On accelerating from stop sign turning left or right the vehicle may pause accelerating briefly and pull with the abs brake auto/ intermittently applied. The traction control light may or may not illuminate at the short time interval of these events, but traction control light does not stay illuminated after the event is over. No error code is read from the vehicle with error code reader. These events are very startling and cause sometimes cause the vehicle to speed up or slow down abruptly. These events are happening at low speeds, however with the car surging forward or abruptly slowing on corning and lane changes there is potential issues of keeping the vehicle under proper control at these times. I believe Toyota should correct this problem so that it never occurs. Toyota to find a solution an implement a recall to update vehicle.

I am writing to bring attention to a critical safety issue affecting the 2012 Toyota Prius and other Toyota models equipped with the brake booster and actuator system. These components are failing at alarming rates, leaving vehicles with no functional brakes, abs, or traction control. Additionally, this failure compromises the hybrid system due to the regenerative braking no longer working, potentially causing further damage to hybrid components and resulting in repairs costing several thousand dollars. Toyota issued customer support program zjb, which covered these issues for a limited period. This program was in effect from August 31, 2021, with no mileage or year restrictions, but offered secondary coverage for up to 10 years or 150,000 miles from the vehicle’s first use. Unfortunately, my vehicle, with approximately 130,000 miles and 12 years of age, was denied coverage when brought to a dealer after the program had ended. Despite the brake booster and actuator failing, the dealership did not advise me not to drive the vehicle, further emphasizing the gravity of this oversight. This is a significant safety hazard, as vehicles with these failures lack the ability to stop effectively, risking lives on the road. Furthermore, this problem is not isolated to my Prius; it affects thousands of Toyota vehicles equipped with these components. The estimated repair cost exceeds $3,000, an undue burden on owners for an issue that stems from defective manufacturing. I firmly believe Toyota’s decision to address this problem through a limited customer support program, rather than a full recall, is inadequate and irresponsible. This issue meets the criteria for a safety recall and should be treated as such by the national highway traffic safety administration (NHTSA). I respectfully urge the NHTSA to investigate this matter further ASAP/mandate a recall for all affected vehicles. This is a big safety issue. [xxx] [xxx] [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b).

The contact owns a 2012 Toyota Prius. The contact noticed that there was a significant amount of water on the floorboards from the windshield whenever it rained heavily. Additionally, the contact stated while at a traffic sign on a hill, the vehicle would roll backwards while in drive when she took her foot off the accelerator. The contact did not notice any warning lights. The contact also noticed that while parking the vehicle, whenever the park button on the dashboard was not depressed while the vehicle was running, the vehicle would roll forward. The contact took the vehicle to the local dealer, where it was not diagnosed and was not yet repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 80,000.

Found car tampered with cut in carpet under driver seat to check battery maintenance per Toyota owner manual where hybrid battery was not receiving charge , was running hot unknown person impersonated me registered my VIN to enroll with Toyota upgraded software app entune version not with purchase is a 2021 software version with parental like controls, I took to Toyota dealerships below for assistance , new battery and hybrid faulting losing charge, car does not provide hybrid fault notice , loses charge , uses little gas , I researched on side of road to rest throttle and work around as I was driving it could have lost all power and stalled per recall notice needed hybrid software update ran dr Prius app and finding recalls serviced at Toyota chambers burg PA are coding j0v issue w/inverter not completed and additional engine & battery codes almost causing my car to not enter fail safe mode hybrid battery almost fully discharged as approaching bay bridge service notes from fitzgerald day there were no issues specific repair request was for diagnostic report of car hybrid battery and sensor check, they claim no issue only repair was replaced fob key although car at location 10 days, missing fuses found upgrade causes car to get 2-4mpg and burn battery hot/discharge without any dash or other warnings from car safety recall notice no. 18v-684 are indicative of car symptoms since incident easton MD Toyota service, arlington va koons, hagerstown MD Toyota and chambers burg refused to provide diagnostics chambers burg held car did not perform service claiming no issues but noted cut carpet under driver seat above hybrid air vent battery cool/ intake problem still an issue no Toyota will run diagnostics -.

I went into Toyota of fort walton beach, FL to remedy a recall (NHTSA recall number 18v684). She said that this recall is not on their list and thus would do nothing. I want this recall repaired as presently there is a safety risk. There are phrases in this recall of "1 unrepaired recall" and "recall incomplete".

I was driving my 2012 Prius c and I'm middle of traffic my car lost its power, thankfully I was able to park the car. I got it towed to the dealership and they told me it's the inverter. I advised that I had read on recalls on them they said my car didn't have a recall they are wanting me to pay 4k for a new inverter ( which I know it's the same issue other 2012 Prius c have had issues too). It's upsetting that no investigation is taking place just sorry and ohh by the way the employee at the dealership handling my case offered me $200 for my car said I would not get more than $400 if I tried selling it like that. Very unprofessional and can't even trust my own dealership.

Vehicle was in motion traveling about 50 mph when an effort was made to pass another vehicle on a 2 lane road, the vehicle lost power while we were passing, we barely got back into our lane and just barely avoided a head on collision. Then the vehicle slowed to about 15 mph and limped to a stop a mile later. We could have died.

Transaxle is failing after 100k miles of normal driving and maintenance. Spoke with both a Toyota dealer and transmission shop who said the cvt failure on this model year and the following several is an extremely common occurrence. This is a $5000+ repair fairly early in the life of the vehicle. The transmission shop said this was due to poor initial design.

Auto stopped. Engine running. Brake pedal pressed. Transmission in drive. When opening driver door and releasing brake pedal, car moves forward. VIN included in attached file.

When I drive over any type of bump, (pothole, speed bump, etc) and my foot is on the brake. . . . The car will suddenly speed-up instead of slow down. Very dangerous situation and it happens every time.

Soon after getting a recall software update for the hybrid system, the car displayed hybrid system check message and lost power. Car had to be towed. Created an extremely dangerous situation due to nature of problem while driving on the road and had to pull over right away.

I pulled into my driveway and pressed the stop button to put the car in park and shut off the engine. I got out of the car and left the driver's door open. I walked to the mailbox to get the mail and heard a crash as the car drove off and hit a tree and landscape wall.

My car will turn on, but it will not shift into drive or reverse until numerous attempts. I usually have to turn it on and off for about 10-15 times before it will allow my to shift into gear. The key fob will lock and unlock the car. The car will still turn on, ac will still come on, radio still works. The only thing that doesn't work on the first 10-15 tries is the sifting into gear. Priuschat forum talk about this issue a lot. They all have similar stories with the same details as mine. It takes me about 5-7 min to get my car started. Once I finally get the car in gear, no issues pop up for the rest of the drive. All of this started about within the last month for me.

Engine oil getting to the intake manifold. And filling up with oil. Throttle body gets really dirty with oil. In turn the engine burns oil. Which clogs up the egr system. The engine would over heat which could cause the head gasket to blow. During winter months. Engine restarts would be harsh because it would have condesaion on the cyclinder this could cause the engine to blow. Broken connecting rods. Blown head gasket all sort of things could happen from having oil get to the intake manifold. Starting from 2010 these Prius suffer from this and Toyota hasnt done anything other then suppsodelly redesigning the intake manifold. Which is the same. Toyota just dont want to deal with it.

My car is burning excessive oil.

Was trying to accelerate the vehicle had no power , while driving on the street, the check engine light was on.

Vehicle stability control, anti-lock brake, and traction control lights intermittently turn off. A few times it shut down the hybrid system and tell me to stop . Now all those lights are all on and I am driving without vss, abs and traction control. Braking is getting harder. I took it to the dealer and they told me the cost is $3500. I did some research and found out that this is a known Prius problem problem.

Took in car for oil change /tire rotation , a software update was performed without my authorization from Toyota on to my Prius v , car went from getting 40 mpg highway to 32-33 mpg highway . City mpg dropped from 41 mpg to 36-37mpg . Dealer claims car has wrong tires which I agree, except those tires were the same tires on the car before and after the software update. Calculated the gas mileage myself before the recall and was pretty close to what the car's computer said ti was , calculated the gas mileage after the software update was done and it came very close to what the computer said.

I owned this vehicle since brand new. It had happened more than a dozen times. When going over bumps or uneven surfaces, with the same pressure applied to the break, the 2012 privus failed to stop and lurched several feet before stopping. We had an incident that we almost ran into pedestrian yesterday when this issue occurs. This is very concerned to my family. We bought this vehical back to the dealer ship where we purchsed it. (expressway dorchester Toyota in masschusettes) they said they could not fix it because they could not reproduced at the dealship. The service of manager claimed this is working as designed from the (tracking control). I feel this is a false statement, this does not happened to my other cars that has traction control. Toyota should really starting fixing it before someone gets killed!.

I received the warning, please check hybrid system. After checking the dtc the following code appeared on the computer: p0a08:DC/DC converter circuit status which indicates an inverter problem. Looking at the recall website using VIN number, showed no recall concerning this. The problem happened many times while driving on a city or a highway.

After Toyota power management software recall installed "power management upgrade" software in my car I immediately experienced serious problems with my ignition /start of hybrid/gasoline engine. After pressing ignition, I had to wait 15 to 20 minutes and press start button on/off repeatedly until the gasoline engine ignite but hybrid failed to start. It is not normal because a Prius hybrid engine starts first not the gasoline engine. Toyota has disabled some important functions in its power management recall software update that affects the hybrid engine performance and failure to start. I drive my Prius 3-4 times a month and I did not have any problem before the recall software upgrade because Prius owners manual clearly says that the battery with be disconnected by battery saving function when your car is parked for long time, several days, weeks. In fact, when your car is parked for just days, Toyota power management software (recall) is draining the car battery and reconfiguring the relays to power up the gasoline engine. Toyota owners manual clearly states that when you are parked, "power management software disconnects the auxiliary battery from the hybrid system. " however, after the recall, not only auxiliary battery is not disconnected but there are lots of "activity" in hybrid engine that drains the batteries. I called the Toyota service and they now say you have to keep the car on a charger all the time when parked for several days. Of course , it is a huge safety problem to keep the car on a charger all the time when parked for days because the battery is housed in the cabin and the ventilation does not exist unless you park your car outdoors. At the same time Toyota recommends keeping the car on a charger , it also warns of explosion caused by charging the batteries in a garage.

The contact owns a 2012 Toyota Prius. The contact stated that while traveling 45 mph, the vehicle accelerated without warning. The contact stated that the vehicle jerked and made a loud noise. The vehicle resumed to its normal acceleration after the brakes were applied. The failure occurred on three occasions. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure and current mileage was 22,000.

Tl-the contact owns a 2012 Toyota Prius. The contact stated that after the vehicle was parked, it rolled backwards independently. As a result, the vehicle rolled over the contact¿s leg and crashed into a building. The air bags failed to deploy. The contact sustained a broken leg, a fractured knee that required medical attention. A police report was filed. The vehicle was towed to a body shop where the technician informed that the vehicle was operating as designed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 15,000. Djr.

At least 2 or 3 times a week, when shifting the car into drive when the car is stopped, the car goes into reverse instead. The first few times I thought I had made a rushed error, so I started watching quite carefully. You can even be backing up and then brake and shift the car specifically into drive and it stays in reverse. It might take 3 or 4 attempts to get it into drive. I have realized this must be why they installed the beeping in the system to alert you that the car is in reverse, it must be a more pervasive problem than simply in my car. I always visually confirm my motions now, and 2 or 3 times a week I will enter the car and put it in drive and it goes into reverse instead. This is an accident waiting to happen.

Car becomes immobile - will not shift into reverse or drive. Computer keeps sending the message to put it in park and depress brake, but once that is done, any attempt to shift into reverse or drive triggers the message, endlessly. The problem is apparently intermittent. Occurred for two hours yesterday, after occurring to a lesser extent in preceding days (in the days preceding the total breakdown, I was able to shift after a slight delay and a few attempts). The dealership to which I had it towed said it was fine today. Everything checks out. This is a safety hazard because the car can be in an unsafe position when it becomes immobile. I was partly out of a parking space, somewhat blocking traffic. The problem involves the computer and the transmission - at least.

From date of purchase, vehicle performed unpredictably. Transitioning from electric to motor was rough and noticeable. At 600 miles, a significant impact was felt during transition. Dealer found nothing. Brake pedal traveled to the floor and vehicle went through stop sign at low speed. Route 44 Toyota insisted I needed to get used to electronic brakes. Toyota insisted brakes worked as prescribed. Recently, a aaa driver discovered the ground wire on the battery was loose. The battery was replaced and the vehicle now functions as described, the hill hold functions as described. Nhtsa did an inspection in response to a defect petition - vehicle did not perform as described in the federal register. Brake pedal is now high, as it was initially. This vehicle was sent from the factory with a loose battery ground and it was covered up by everyone from Toyota, dealerships to NHTSA when the correction was simple. Toyota does not stand behind their product.