I started my car and my dash lights for brakes, anti-lock, anti-skid came on and brakes became spongy. this happens intermittently. i parked the car and later checked the lights and the car was operating normal. i drove the car around the neighborhood to try to duplicate the issue. could not duplicate. the next day i started the car the lights came on again and brakes were not operating normally. spongy and no anti-lock. i checked recalls and found the issue was recalled in 2010. i also found numerous complaints on prius forums for this issue covering 2012 prius. i think this is a safety issue toyota should recall for 2012 as well.
My car has the same brake booster/master cylinder defect that the 2010/11 model prius were recalled for. brake booster or brake pressure accumulator failure on 2012 models causes loss of braking effectiveness. serious safety issue that can cause death. toyota is well aware of this. this happens in motion at highway speeds.
Car was in motion and brake pedal went half way to floor and abs, brake, traction control and tire sensor lights came on. master cylinder or brake booster seem to have failed. dealer didn't recognize codes and could only recommend changing spark plugs when i just had them replace 6-8 months prior. explained that did think that had anything to do with brakes giving out. they reset codes and sure enough happened again within the next 30 days. toyota admitted to since receiving many reports of certain internal malfunctions of brake booster assemblies. 4 trips later to dealer the response is the codes are not coming up (dtcs) c1391, c1252, c1256 or c1253 in order to be covered it's voluntary customer support program which has brake booster and brake booster pump coverage. very frustrating!
Traction, brake and abs lights all came on at once, pratically lost all braking while driving but able to slowly stop. squishy brakes. "pump" sounding noise like it's having trouble pumping brake fluid.
I having a problem with the brake booster on my prius and the toyota dealership i went to said i need to replace both the master cylinder and booster pump which would be 3000 dollars worth of parts and labor. after research this issue i have found serval people have the same issue. also the parts are on back order, showing you how big of issue this is. the breaking system felt spongy, my traction control braking system and abs lights came on. thankfully i had just a couple of feet to my driveway.
The car has been suffering all of the brake symptoms for the recall of the 2010 prius brake booster system. i've repeatedly complained about losing braking power when the abs light comes on when i go over uneven surfaces such as railroad tracks or a pothole. the brakes have benn farting from day one while sitting at a light or parked if the brakes are depressed and then slightly released. and now today the abs brakes are on with the battery light and there is limited braking power. i have to push almost all the way down before the brake engages. toyota tells me i need to replace the brake booster system for $3500 and there are only 70,000 miles on my 2012 car. i feel my brakes have the same issues as the 2010 recall and more years including mine are affected and should be recalled.
When the brakes are applied and going over a rough road surface, or pothole, the brake warning light appears, and the brakes suddenly stop functioning until back on a smooth road surface. this happens all of the time under these conditions. it is really scary when the vehicle suddenly loses all braking while trying to stop. i have a 2012 toyota prius and a 2010 toyota prius. they both have the same problem with the abs braking system. cannot understand why this is not a full recall on this potentially dangerous condition.
I was coming up the freeway off ramp and my car just turned off i had no braking i hit six other cars rolled over and was severly imjured in the hospital forr three days
Problem with braking system involving, the other day the car was on and suddenly three (3) warning lights came on: brake light, abs light and traction control light. there is also now a pumping sound coming from under the interior of the dash (on it at least sounds that is where it's coming from. the car has 151,428 miles on it. i've included pictures of the current eror code, mileage and dash lights that are on.
The vehicle was traveling over 60 mph when the abs, brake and traction lights came on and the brake became immediately spongy and i had to depressed even harder (past the foaminess) to reduce speed. a motor could be heard trying to turn over on the brake system. the car speed was reduced to 25-30 mph on the highway but the spongy brakes continued. within 5 min i pulled off the highway and into a parking lot. parked the car, turned it off and on to see if that would remedy the situation and nothing changed. i then called the toyota dealership's service department to book an immediate appointment and arrived at the dealership approximately 40 minutes later. the car was looked at and i was told that the brake actuator was the issue and that they would like to contact toyota to see if this was in warranty or part of the recall. i was told the next day that the cost of installation and parts would be at least $4,000 and that i would need to pay the full amount as toyota was taking no responsibility. i called the toyota customer service line, explained my situation and was told the same thing as i was told at the dealership. i feel that this brake actuator (its parts, its composition and/or its installation) is a systemic issue with toyota products and a known issue with toyota prius' in 2009 and 2010. tangential to this issue, my father owns a toyota car as well and has also had to have his actuator replaced this year. toyota should be held responsible for all faulty parts and installation and purchase of new parts. my maintenance record is exemplary and my driving record is as well so this is not regular wear and tear in my opinion.
Brakes failing, getting a c1391 code, leak in accumulator. toyota has a warranty enhancement for this issue on the 2010 model but it has not extended to 2011 or 2012 models. i contacted local dealer and national representatives and was refused any assistance from toyota. this issue happened twice over the last two days, both times while vehicle in motion on a city street. warning lights came on and almost no stopping power.
I was traveling north on the highway. i was going between 50 and 55 mph when the traffic light turned to yellow and then to red. when i applied the breaks nothing happened. my vehicle actually appeared to speed up. i released the brake then pumped the break twice then again applied the break, this time stomping harder and with both feet. my vehicle did not stop or even slow. i went through the light, resulting in a car accident. i t boned another car.
Various alerts lighted, brakes, abs, anti skid. lost some braking... too soft and funny like... needed pumping. cost of repair to replace brake pump system including tha actuator(buster). brake pads for $3,700 +. at toyota calesa in puerto rico.
Vsa, avs, and brake lights on with decreased resistance in petal. brakes will return to normal without warning periodically while driving. this makes driving and stopping unsafe and unpredictable.
The brake light, abs light, traction control light all came on at once while driving normally. it did not affect the drivability of the vehicle. i took it to the local toyota dealership to diagnose the problem. the service specialist said that this is a known problem with these cars and quoted a $2500 service price to replace it. if it is this known and this expensive to replace then it should be included in a recall. that would make it a design flaw by the manufacturer.
While driving at 45mph vsc, parking brake, and abs lights comes on and stays on after research it seems to be a fairly common issue with the 2012 prius. still waiting for toyota to do smething about it
The abs, traction control, and brake warning lights came on. i took the vehicle to my local toyota dealership, where i was told the diagnostic has alarm dtc c1391 and this is a major brake hazard. the dealer state the abs brake system need to be replaced at a cost of $4,504.63 plus taxes. i explained to the dealer the car is making a sound like the abs is kicking in when it come to a stop. the noise persist coming in and out even when the car is parked and off. my 2012 prius has only 74k miles. the brakes pedals feel weird and loose. i red toyota extended the warranty for this issue due the brake actuator failure due manufactory issues. the dealer state my vin is not there. what are they waiting to fix this issue on the 2012 prius??? we need to have toyota fix this problem for all cars before catastrofic event happen.
Lost front brakes completely driving down road. i was able to slow car with manual brake on shifter in conjunction with rear brakes. a serious issue.
When braking during normal driving conditions, a mixture of city and highway, the car makes a sound like the abs is kicking in. when coming to a stop, the noise persists until releasing the brake pedal. shortly after this started, the abs, traction control, and brake warning lights came on. i took the vehicle to my local toyota dealership where i was told it was the brake actuator needed replace at the cost of $3600. my 2012 prius only has 76k miles on it.
Brake actuator /master brake cylinder broken, same issue as prebious models of the prius.
A number of lights came on...abs, anti skid, system failure, etc. the brakes started to feel very funny and started to make a strange noise. took it to toyota and they said it was not safe to drive because of the brakes. needed the brake system (actuator is the name i believe).
On july 28, 2017, i was driving along with my three children. i pulled into a driveway to park my vehicle behind a parked vehicle. there was approximately a 2 foot span between the back of the vehicle and the front of my 2012 toyota prius. to the right of the parked vehicle was a parked truck. being that i was pulling into a space to park my vehicle, i was traveling extremely slowly. i began to press on my brake to park the vehicle and instantly knew there was a problem. upon depressing the brake, several lights began to flash within the dash to include but not limited to the abs, warning light, and the light with vehicle swerve lines. other lights were also flashing, but i do not recall each one. the brake pad instantly went straight to the floor with no pressure. the vehicle would not stop and continued to travel forward with acceleration. to avoid hitting the vehicle in front of me i began to turn my wheel to the right. the vehicle continued to accelerate and came into contact with the truck that was to my front-right. my prius failed to slow or stop. it continued to accelerate and began pushing the truck up the driveway and into the metal garage door with the brake pedal being depressed the entire time. eventually, the car came to a stop and the lights continued to flash prior, during, and after the incident. after the car was towed tread wheel marks were found on the driveway where the wheels spun and left an imprint in the asphalt. i and my children were uninjured however, the incident was incredibly traumatic. the vehicle was deemed a total loss by my insurance company and as of yet to be processed for diagnostic testing by toyota. the toyota care service was informed of the accident. toyota believes it to be associated with the intelligence component of the vehicle, however determination is currently unknown until diagnostic is performed.
While driving the vehicle on a dry surface street, the "check hybrid system" light illuminated. the brake pedal felt like i had to apply more pressure to stop and it seemed to travel further toward the floorboard than normal.
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
For some time i have noticed that when braking, if my car hit a bump, the brakes would disengage for a second or two even if the brake pedal was fully pressed, and the car would lurch forward until the brakes reengaged. it was a similar sensation to hydroplaning, even though it would occur on a dry road. the antilock braking system light would be on while the brakes were out, and i am told that the brake lights on the back of my car also were on, but no brake function for a second or two. a few days ago i was braking at a stoplight in normal weather conditions and the brakes did not work at all. i had to stop the car using the emergency brake. the mechanic has been unable to find anything wrong with the car. my car only has 30k miles on it and has been well-maintained.
Pivot bolt inside steering wheel came loose, was warned it had dropped to where it could interfere with brake linkages. filed complaint with toyota and never heard back so filing this complaint. (1) a large bolt inside a sealed area should not be able to come loose if installed correctly (manufacturing error - single instance or systematic?) and (2) a loose bolt should not be a risk for a possible catastrophic outcome - loss of brakes (design flaw, linkages should not be susceptible to being jammed - that's what they warned me about when they asked for the $330 to fix it). this was discovered when i took the vehicle in for regular servicing, they told me the steering felt funny.
Tl* the contact owns a 2012 toyota prius. while attempting to accelerate from a stop, the vehicle hesitated prior to accelerating. the failure recurred on numerous occasions. the vehicle was taken to a dealer where it was diagnosed that the brake actuator needed to be replaced. the vehicle was not repaired. the manufacturer was notified of the failure. the failure mileage was 63,000.
Tl* the contact owns a 2012 toyota prius. while driving 20 mph, the brake pedal was depressed, but failed to engage. as a result, the contact's vehicle crashed into the rear of another vehicle. the air bags failed to deploy. a police report was not filed and there were no injuries. the contact was able to drive the vehicle away from the crash scene. the vehicle was not diagnosed or repaired. the contact stated that the failure recurred intermittently. the manufacturer was notified of the failure. the approximate failure mileage was 135,000.
Tl* the contact owns a 2012 toyota prius. while depressing the brake pedal, it made an abnormal noise. the dealer diagnosed that the brake actuator was faulty and needed to be replaced. the manufacturer was not notified. the vin was invalid. the failure mileage was 46,000.
Tl* the contact owns a 2012 toyota prius. the contact stated that the vehicle independently accelerated while pulling into a parking space with the brake pedal applied. the contact applied extreme force and the vehicle continued to unintendedly accelerate at a high rate of speed. the vehicle turned right and crashed into a trash dumpster. the driver and front passenger sustained whiplash. medical attention was not required. a police report was filed. the vehicle was towed to the dealer's collision center who repaired the body damages and was to send a third party to investigate the cause of the failure. the contact was waiting on the dealer and the manufacturer to determine the remedy to repair the vehicle. the approximate failure mileage was 20,000.
Vehicle had little or no braking power in a panic stop situation. this was likely cause by a delay switching from regenerative braking to mechanical brakes.
I was driving on i-45 at 55 or 60 mph and the brake pedal went to the floor. it is still that way, brake fluid level is ok. toyotacare plan is expired. is there a recall for these vehicles? thanks *tr
I own a 2012 prius with the technology package, including radar adaptive cruise control. i believe these same radar sensors are also used to detect imminent collisions in front of the vehicle, even when cruise control mode is not engaged. about a month ago, while driving north on interstate 5 in downtown seattle at approximately 60 miles per hour, and without cruise control engaged, my prius went into "imminent collision mode" despite the fact that there was nothing in front of me -- no vehicles, no debris, no obstructions. before slamming on the brakes, my seat belt was "tightened" and the brakes were automatically applied at full force, even without my foot touching the brake. this was incredibly jarring and disturbing, and could have been a serious accident if there was a vehicle behind me. fortunately, there was no vehicle behind me at this time. after about two seconds of full braking, the vehicle "disengaged" collision mode and allowed me proceed and return to speed. i called the toyota of seattle dealership and spoke to their service department. they were unaware of this issue, and suggested that i bring the vehicle in for servicing. they confirmed there were no outstanding recalls on the vehicle. they told me it would cost at least $100 for a basic diagnostic, and if sensors had to be replaced, it could cost hundreds or even thousands of dollars. because i am currently unemployed and looking for work, i did not bring my vehicle into the service center. i feel this is toyota's obligation to fix, and shouldn't require me spending money out of pocket. i would like some kind of response from toyota on this issue. i have avoided using the radar cruise control since this moment, but the fact that it occurred while not in this mode makes me feel that the car could "take control" at any moment and cause an accident. thanks, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6) *js
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
I went to start my prius v. after it was started, a number of the warning lights came on including the abs and stability control. i was stunned since i had my 30000 mile check up in may with no problems. when i took it to the dealer for repair, the dealer determined that rodents had eaten through a number of the electrical systems because of the soy based wiring. (i understand now that it's "biogradable soy based wiring insulation.) i generally park my car at only two locations - my home and my work. i had never seen any rodents of any type! i can't imagine what would have happened if one of the wires to the engine, or airbags, or any system for that matter separated while i was driving. apparently, toyota is aware of this problem but is trying to downplay it! i was told it's not a warranty item. my car requires two new wiring harnesses, the alarm wiring, and the airbag harness plus other repairs. *tr
I was driving on my residential street and stepped on the brake to slow down to make a left turn into my driveway. the car failed to slow down or stop, and instead went over the curb, veering to the right and side swiped the left side of my neighbor's car, narrowly missing his garage.the car then side swiped a tree on my left (on property between my and neighbor's property.) the front end of the car crashed into a tree, saving me from rolling about 900 feet to the street below. the entire time of this incident the brakes never engaged (pedal was down to floor) and i frantically tried to steer to avoid hitting anything. a witness, standing on the street, confirmed my brake lights were on. car was serviced by toyota (world class inspection) 15 days before the incident. inspection report indicated brake fluid level and brake lining were "checked and ok." after the incident the car was towed to a repair site where the operator demonstrated to me that the brakes were nonexistent and the brake fluid level was still appropriate. car was deemed totaled. *tr
I was traveling about 20 miles an hour during traffic hour when i saw the car stopped in front of me. i had at least 4 car distance when i applied brakes. normally, i can feel the seat belt tighten, cars jerking or shake due to anti-lock brake when you step on the brake hard. but this time, i did not feel the car slow down when i stepped on brake all the way down, it continue to cruise a little before it slow down, but by then, i have already hit the car in front of me. this car was serviced regularly, during my last visit 3 weeks ago, i was notified that my car is on the recall list for software update. *tr
Tl* the contact owns a 2012 toyota prius. the contact stated that while driving 25 mph, the vehicle was crashed into from the rear. the driver attempted to engage the brakes however, the brakes became unresponsive. as a result, the driver crashed into another vehicle and the air bags failed to deploy. a police report was filed and no injuries were reported. the vehicle was towed to the dealer and the manufacturer was not made aware of the failure. the vehicle was not repaired. the vin was not available. the failure and current mileage was 60,000.
Tl* the contact owns a 2012 toyota prius hybrid. the contact stated that the automatic startup engaged independently with a loud clunking noise. the vehicle was towed to an authorized dealer for diagnosis. the technician was unable to duplicate the problem. the vehicle was also diagnosed by a different dealer who refused to repair the vehicle. the manufacturer was notified of the problem. the vehicle had not been repaired. the approximate failure mileage was 32,775. ..updated 02-28-14 *bf the consumer stated the vehicle was traded in. updated 03/19/2014*js
While traveling in a rain storm at 17mph, i tried to engage the brakes to prevent from crashing into an 18 wheeler and the brakes did not work. i repeatedly tried to stop the car and the car was accelerating even thought i was applying the brakes not the gas. the car would not shut down, go into park or neutral. i did crash into the 18 wheeler because the engine was accelerating and i wanted to stop.when i crashed the airbags did not deploy. even after impact the car was still accelerating like it was trying to push the 18 wheeler. eventually the car powered down after repeatedly pushing every button possible. i had the car towed to a toyota dealership. i phoned your hotline but the vin number i gave had a number that was wrong my prior confirmation number is 10542285. toyota is aware and i am waiting for them to call me back.
Tl* the contact owns a 2012 toyota prius. the contact stated that while driving approximately 25 mph and making a turn, the brakes failed to respond upon engagement. the vehicle came to a stop after the contact applied the brakes several times. the vehicle then resumed without the brake malfunction. the vehicle had not been diagnosed or repaired. the manufacturer was not notified of the defect. the approximate failure mileage was 12,000. the vin was not available.
Tl* the contact owns a 2012 toyota prius. the contact mentioned that while driving 35 mph, the brakes failed to respond. the vehicle was taken to the dealer. the technician was unable to diagnose the failure. the manufacturer was not made aware of the failure. the vehicle was not repaired. the failure mileage was 4,600 and the current mileage was 4,900....updated 11-01-13 *bf
I was exiting the park and my toyota prius' brakes failed, careening me onto a major thoroughfare (south orange avenue) on a hill, while my car began accelerating. i hit the park button and my car slowed until i was able to get control again and turn up a hill to a stop. when i turned my car off and on again, the brakes were functioning normally. *tr
My prius v five was purchased in august 2012. location of the car is nw of wa state where temperatures are currently in the mid 50s (and below) with high level of humidity. since the beginning of october 2012, i'm experiencing a noise that would best be described as an "owl hooting." my problem is especially noticeable after the car has parked for an extended amount of time (eg. in the garage overnight). sometimes, merely parking for 10 minutes on the school's parking lot is enough to make the noise appear again. the "hooting" definitely "oscillates" with the rotation of the tire and emanates from my rear right side, but is especially loud when making left turns. the noise disappears after driving a few hundred yards, but is loud enough to turn heads. i'm able to reproduce this problem every single morning since october 2012. the service techs were able to confirm the noise, but couldn't repair the defect. instead, an open case/ticket was submitted to toyota's headquarter. *tr
Vehicle is parked outside, and during morning cold start, the vehicle produces a moaning/wooing sound for approx. 50-75 yards with vehicle moving under 25 mph. the sound is being generated from the front wheel wells. sound generated is related to vehicle speed. the faster the vehicle moves, the more frequent the sound being produced during the first 50-75 yards. strange sound is gone after that, and does not return until the next cool/cold start. owner took the vehicle back to dealership for inspection, and dealer took off the front wheel to inspect brakes, wheels, and tires, and was not able to locate or reproduce the problem. abnormal sound is only produced during morning cold starts and when vehicle is left to cool(i.e. parking lot at work). *tr
Repeating several-second groaning or grinding noise heard from rear wheel area upon startup motion. the noise is severe and sounds like low-pitch metal grinding. it's potentially brake related but could be suspension bushings or other components rubbing against one another. it does not sound like typical brake glazing. the noise occurs in all weather conditions and typically after vehicle has been sitting for several hours or overnight. noise continues for several minutes at stop and start. noise is loud enough to startle an experienced driver. the absolute severity and indication of the sound is enough to question safe ongoing functionality of braking and/or suspension systems. multiple reports are documented online at priuschat.com. toyota does not appear to have a fix or resolution at time of writing, 10/2012. this is for 2012 prius v model five. *tr
As i was approaching a turn i began to brake and the brakes failed. i tried pressing the brake pedal harder and making sure that i had proper foot placement and it felt like the car accelerated at that point. since the car was not slowing down i was unable to make the turn and ended up crossing the road diagonally and going up onto the curb. once the car was over the curb and in the grass the brakes finally engaged and the vehicle came to a stop. *js
Tl* the contact owns a 2012 toyota prius. the contact stated that while depressing the brake pedal, the brakes locked up. the contact continued to depress the brake pedal and shut the vehicle on and off by pushing the start button. the failure occurs intermittently. the contact also noticed the brake pedal drops to the floor board about a half inch when starting the vehicle. the manufacturer was made aware of the failure and a complaint was filed. the vehicle was taken to the dealer who was unable to diagnose the failure. the vehicle was not repaired. the approximate failure mileage was 3,000.
The vehicle emits a repetitive 'woo......woo.....' that varies with speed/wheel revolution (something rubbing during each revolution). to the best of my ability to tell, it sounds like the groan is coming from the rear-passenger side. the sound is usually present after the car has sat overnight or after prolonged parking and last for 100-300 feet of driving. i've even heard it after four hours of being parked at work. it will typically make this sound for a few days after a rain event. the sound has occurred in both forward and reverse and with the emergency brake on or off prior to departure. i purchased the vehicle in april and have heard it all the way to the present. during a tire replacement i made note of the issue to the dealer, who attributed it to rotor oxidation. i responded that i've heard the grind/groan of rust being worn off the rotor when first apply the brakes, and this is not that sound. i went in with a recording on my phone and the technician agreed it wasn't rust. they repaired the tire and tried to reproduce the condition without success. they did tear down the brake and found nothing out of the ordinary. the fact that this issue persists on multiple vehicles of this model is indicative of a manufacturer's defect that should be addressed. *tr
I have owned a toyota prius 2012 since february 2012 and have had multiple issues with the braking system. i have noticed that if driving over a depression in the road (e.g. pot hole or man hole cover) while depressing the brake the vehicle accelerates. it seems that the vehicles brake system releases and you have to reapply the brakes. i have had the vehicle inspected by the dealer 2 times and they have been unable to identify the problem. i have notice various other complains on this website and wanted to add my experience. hopefully this will eventually lead to the government forcing toyota to recall 2012 prius models before someone is seriously hurt. *tr