RoadVitals

2012 Toyota Prius V Driver assistance Problems

Owner-reported complaints naming the driver-assistance system, filed with NHTSA

Data refreshed

Driver assistance reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
25
Latest May 11, 2025
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
12%
of 215 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
6
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
4

What this page shows

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2012 Toyota Prius V submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 25 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming driver-assistance

Shown in the owner’s own words, exactly as filed

AirbagsDriver assistance
Filed May 11, 2025

On 10-17-24 these warning lights came on: 1. Pre-collision System 2. Hybrid System 3. Airbag 4. Safety Connect red light And Intermittently: 1. Slip Indicator 2. Brake System Cruise control would not set, and displayed "E3". ------- Component failed: Dealer determined that the driver's side door harness had been chewed by a rat that had entered the under dash area "somehow". They said it couldn't be repaired but must be replaced. My insurance deductible was $500 and they paid the balance of the $1,387.06 bill. (I have retained the harness, which could have been repaired by splicing the two wires connecting to the driver's side airbag collision sensor. The labor to splice the wires would have been less than an hour.) ------ Safety: The chewed wire apparently disabled the Airbag, Pre Collision, Emergency Automatic Braking, Seatbelt Pre-Tensioning, ABS, and Stability Systems. ----- The dealer confirmed the problem. ----- My insurance adjuster did inspect the harness. ----- I placed electronic rat traps in the vehicle, which killed three rats. ========= NEXT ========= ALL THE SAME WARNING LIGHTS CAME ON A FEW MONTHS LATER! I didn't throw more money at the Dealer, and took off the panels to inspect the wiring myself. There was damage to the passenger side door harness wires. I removed the harness and ordered a $60 used replacement on Ebay. While waiting for delivery, I researched rat damage to Toyota wires, and how rats could possibly enter the interior of the car. I discovered that there is an UNSCREENED 12x9 inch opening to bring fresh air into the HVAC system. It is hidden under the windshield wiper cowls. Also, there are two UNSCREENED vents in the trunk area. Other Prius owners covered those openings with 1/4 inch metal wire hardware cloth. I spent a few hours disassembling, covering, and reassembling pieces to prevent further access through the fresh air intake, and will do to the rear next. TOYOTA should recall these cars and ratproof the harnesses

NHTSA ID
11660257
Incident
Apr 15, 2025
BrakesDriver assistance
Filed Jan 17, 2025

Anti lock brake malfunction. Code c1391 leak in brake accumulator. This seems to be a common code for brake issues with Prius. The cost to repair is significant, more than the value of the car. This is a certain safety issue that needs to be addressed. This is clearly a Hazzard and will cost lives to those who cannot afford the cost of repair.

NHTSA ID
11636405
Incident
Jan 16, 2025
Body & structureDriver assistance
Filed Apr 30, 2024
Crash reported1 injury reported

On February 27 2024 I had spend 2300 dollars on car repairs see enclosed then on April 11 2024 while backing out of my driveway, I experienced a sudden acceleration of my vehicle which led to body damage to my car yet Toyota after inspection says that now the car system works perfectly. Prior to this incident I experienced warning light and windshield wiper malfunction .

NHTSA ID
11586049
Incident
Apr 11, 2024
BrakesDriver assistance
Filed Apr 11, 2024

I was driving when I felt my brake pedal start to become soft and mushy. I was able to brake, but I had to pump the brakes to get full brakes to stop. I also noticed warnings began to appear on my dashboard. The warnings that were shown are the brake light, traction assistant light, and ABS light. I took it to Gates Toyota in South Bend, IN and paid for a brake inspection. They told me that my brakes themselves were OK (pads, rotors, calipers), but they were getting a C1391 error. I was told that the brake accumulator has an internal leak. I was told that I needed to replace the brake master cylinder and brake booster pump assembly. I bought the car used from the dealership about a year and a half ago. After doing research, I found that this same issue has been a common recall problem on a number of Toyota vehicles starting as far back as 2008. I also found a few class action lawsuits concerning Toyota vehicles with the exact same issue. My vehicle doesn't show any current recalls, but I'm having the same problem as other Prius V vehicles are having. I was quoted $3300 to fix this problem. I shouldn't have to be responsible for paying for a defect that has been recalled on a very large number of vehicles, and also has been the result of class action lawsuits.

NHTSA ID
11582287
Incident
Apr 8, 2024
BrakesDriver assistanceSteering
Filed Feb 1, 2024
Crash reported2 injuries reported1 death reported

8/2/22 My ABS light came on. Took the car to a dealer. They kept it for six weeks and returned it on 10/3/22. No charge and no explanation. 11/7/22 engine light came on. Took in to dealer, they returned it 11/17/22 indicated incorrect air/ fuel mixture. 10/9/23 Traveling 47 mph, came around a mountain and encountered stopped cars. Slammed on the brakes, car did not slow down, steering wheel locked to the right, car yawed to the right, and turned over, hit a curb and the car righted itself. 3 occupants, 2 injuries , 1 death. Researching the 2012 Toyota Prius, found many instances of a faulty ABS system, mimicking exactly my experience. I was never informed by Toyota or the local Toyota dealer.

NHTSA ID
11569297
Incident
Oct 9, 2023
AirbagsBrakesDriver assistance
Filed Jan 22, 2024

Upon driving out of my school parking lot at approximately 15 to 20 miles per hour I noticed a cushiony filled with a brakes and all of a sudden I heard a shhh all of my lights popped up on my dashboard. When I took my vehicle in to be able to find out what was going on with it I was told that I need a master cylinder and a brake booster. This was after having my vehicle for only 3 years where I purchased it from Rice Toyota Greensboro North Carolina.

NHTSA ID
11566877
Incident
Jan 22, 2024
Driver assistance
Filed Jun 15, 2023

ABS Unit failure (may also be called ABS CONTROL MODULE ACTUATOR AND PUMP ASSEMBLY). Three mechanics, including a Toyota dealership, is unable to reset the system to correct. The PCS system cannot be disabled which, in turn, means cruise control is no longer operable.

NHTSA ID
11527136
Incident
Jun 9, 2023
Driver assistance
Filed Feb 23, 2021

ALL THE BRAKE LIGHTS POPPED ON AND CHECK ENGINE LIGHT . THERE WAS A RADAL IN THE ENGINE I GOT THE CHECK ENGINE LIGHT CHECK IT WAS MULTIPLE MIS FIRE SO I CHANGED SPARK PLUGS AND COIL PACKS .YESTERDAY THE VEHICLE STALLED WHILE MOVING AND WOULDN'T GO NO WHERE ELSE . THERE IS A RECALL ON THE CAR THAT MY FIANCE JUST GOT IN THE MAIL AND TOYOTA IN GOLDSBORO NC DOESN'T WANT TO DO ANYTHING ABOUT IT .

NHTSA ID
11397550
Incident
Feb 23, 2021
Mileage
173,943 mi
Driver assistanceElectrical
Filed Jul 27, 2020

[XXX] CAR DOES NOT STARTS STALLING DOES NOT LOCK OR UNLOCK DOES NOT RESPOND TO KEY FOB DOES NOT RESPOND POWER BUTTON OR START BUTTON MAKES SOME KIND OF NOISE WITH ALL LIGHTS BLINKING REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *CC

NHTSA ID
11341572
Incident
Jul 26, 2020
Mileage
59,670 mi
Driver assistanceElectrical
Filed May 21, 2020

TOYOTA PRIUS V 2012 LOST POWER AS I WAS DRIVING OUT OF THE PARKING LOT. I HAD TO MAKE EMERGENCY STOP ON THE SIDE OF THE ROAD BECAUSE INVERTER/ELECTRIC MOTOR FAILED. MECHANIC RAN COMPUTER TEST AND FOUND THAT PROBLEM CODES INDEED POINTED TO FAILURE OF INVERTER.I CALLED LOCAL DEALER MCCORD TOYOTA AND WAS TOLD MY CAR DOES NOT FALL TO EXTENDED WARRANTY OF INVERTER AND DID NOT OFFER ANY HELP. SAME DAY I CALLED TOYOTA CUSTOMER CARE AT 1-800-331-4331 AND THEY TOLD ME THAT MY CAR DOES NOT FALL UNDER INVERTER WARRANTY BASED ON MY VIN NUMBER, AND GAVE ME CASE NUMBER 2005072419. I WAS ABLE TO CALL MY INSURANCE COMPANY TO ARRANGE TOWING FROM MY LOCATION TO REPAIR SHOP. REPAIR SHOP COMPLETED WORK AND VEHICLE IS NOW IN OPERABLE CONDITION. I FEEL LUCKY THAT I WAS NOT ON FREEWAY AND DID NOT HAVE MY CHILDREN WITH ME WHEN IT HAPPENED. *TR

NHTSA ID
11325497
Incident
May 7, 2020
Mileage
113,221 mi
BrakesDriver assistance
Filed Mar 17, 2020

THIS COMPLAINT IS FOR A 2012 PRIUS V THAT I'VE NOTIFIED MY LOCAL DEALER AND TOYOTA ABOUT A POSSIBLE SAFETY ISSUE RELATING TO THE BRAKE BOOSTER. THE PRIUS V IS CURRENTLY NOT INCLUDED IN THE ZJB CUSTOMER SUPPORT PROGRAM AND I BELIEVE IT SHOULD BE. BRAKE PEDAL FEELS VERY FIRM AND INCONSISTENT AND MUCH HARDER TO ACTIVATE THE BRAKES. THERE IS CONSTANT (EVERY FEW SECONDS) BRAKE BOOSTER ACTUATION/WHIRRING CONSISTENT WITH SYMPTOMS OF A LEAKING/DEFECTIVE BRAKE BOOSTER PER MY LOCAL DEALER. WARNING LIGHTS FOR BRAKE, ABS, STABILITY CONTROL, AND TIRE PRESSURE ARE ON.

NHTSA ID
11318389
Incident
Mar 17, 2020
Mileage
117,000 mi
Driver assistanceElectricalSteering
Filed Nov 4, 2019

AFTER REPAIR OF STALLING ENGINE CONDITION: VSV VALVE REPLACED, A SOFTWARE UPDATE SUBSEQUENTLY WAS PERFORMED ON MY CAR (JOV RECALL). EVER SINCE THAT SOFTWARE UPDATE IT HASN'T BEEN SAFE TO DRIVE MY CAR : UNSAFE BREAKING, REALLY HARD BREAKING, ESPECIALLY ON HIGHWAYS AND UNTIMELY DASHBOARD LIGHTING RELATED TO TRAC/VSC, CHECK ENGINE AND HYBRID WARNING LIGHT

NHTSA ID
11277943
Incident
Oct 16, 2019
Mileage
180,000 mi
BrakesDriver assistance
Filed Oct 26, 2019

MY 2012 PRIUS V IS ONLY 90K MILES. STARTING FROM ABOUT 2 WEEKS AGO, THE WARNING LIGHTS INCLUDING BRAKE SYSTEM WARNING LIGHT, ABS WARNING LIGHT AND SLIP INDICATOR LIGHT WERE SUDDENLY LIT ON WHEN I WAS DRIVING, THEN I FOUND THE REGENERATE BRAKE BECOME VERY HARD AND DIFFICULT TO STOP WHICH WAS MALFUNCTIONING. THESE WARNING LIGHTS WERE KEPT ON ALL THE TIME WHEN I DRIVE THE CAR. THE CAR THREW OUT CODE C1391 WHEN GIVEN A DIAGNOSIS. AFTER SOME ONLINE WORK, I FOUND THIS IS A VERY COMMON PROBLEM FOR PRIUS V. I WENT TO THE DEALERSHIP HOWEVER THE DEALERSHIP STATES THAT MY CAR, BASED ON ITS VIN, IS NOT IN ONE OF THE CERTAIN CARS COVERED BY ZJB PHASE 2 WHICH COVERS BRAKE BOOSTER AND BRAKE BOOSTER PUMP ASSEMBLIES FOR CERTAIN 2011-2015 MODEL YEAR PRIUS VEHICLES. THE FAILURE OF THE BRAKE COULD BE A DEADLY DEFICIENCY TO ALL THE PEOPLE IN THE CAR WHEN DRIVING. NOW I HAVE TO THINK TO STOP USING THIS CAR BECAUSE OF THE SEVERE SECURITY RISK. TOYOTA SHOULD TAKE ACTION TO SOLVE ALL THIS PROBLEM FOR ALL INVOLVED CARS, NOT CERTAIN CARS. MY CAR IS MADE IN 2012, THE DIAGNOSIS CODE C1391 GIVEN BY MY CAR ARE FALLING INTO ONE OF THE FOUR CODES ASSOCIATED WITH THE BRAKE PROBLEM COVERED BY ZJB PHASE 2. IT IS RIDICULOUS THAT MY CAR WAS NOT ISSUED THIS EXTENDED WARRANTY.

NHTSA ID
11271144
Incident
Oct 10, 2019
Driver assistanceEnginePowertrain (other)
Filed Dec 10, 2018

WHEN I BRAKE THE CAR SHAKES A NOTICEABLE TYPE OF SHAKE AND STARTS TO MAKE A WEIRD STALLING NOISE.

NHTSA ID
11157210
Incident
Dec 9, 2018
Driver assistance
Filed Nov 1, 2018

SAFETY RISK THAT VEHICLE COULD LOSE POWER AND STALL. MANUFACTURER RECALL NUMBER J1V. NHTSA RECALL NUMBER 18V684 AS OF OCTOBER 4, 1918. IT IS NOW NOVEMBER 1, 2018. CALLED THE DEALERSHIP THIS WEEK AND THE REPORT WAS THAT THE MANUFACTURER HAS NOT FIX TO DATE. QUESTION: WHAT RELIEF IS AVAILABLE UNTIL FIX DISCOVERED? FREE USE OF CAR PROVIDED BY DEALERSHIP?

NHTSA ID
11144785
Incident
Jan 4, 2018
Mileage
84,620 mi
Driver assistanceElectrical
Filed Oct 31, 2018

WAS DRIVING DOWN THE STREET IN MY PRIUS WHEN ALL OF A SUDDEN THE CAR WENT TOTALLY DEAD. IT DID NOT GO INTO A LIMP-HOME MODE. I WAS DEAD IN THE WATER IN THE MIDDLE OF A STREET ALL OF A SUDDEN. WE HAD TO GET OUT AND PUSH IT OUT OF THE STREET. MECHANIC SAYS ITS A KNOWN ISSUE WITH PRIUS AND INVERTER. THAT WAS PRETTY DANGEROUS AND I WAS GLAD WE WERENT ON THE FREEWAY. WE WERE UNAWARE OF ANY RECALL. THE CAR WENT INTO "DISCO MODE" - EVERY WARNING LIGHT IT HAD WAS ON AND BLINKING BUT THE CAR WAS COMPLETELY DEAD.

NHTSA ID
11144597
Incident
Oct 25, 2018
Mileage
130,000 mi
Driver assistanceEngine
Filed Sep 2, 2018

ENGINE SHAKE ON START UP WHEN VEHICLE IS NOT IN MOTION , SEEMS TO BE AN ISSUE WITH POWER.

NHTSA ID
11124062
Incident
Jun 1, 2018
Mileage
125,000 mi
BrakesDriver assistance
Filed Feb 6, 2018

ON JAN. 3, 2018 WHILE MOVING AT A MINIMUM SPEED (LESS THAN 15 MPH) I APPLIED THE BRAKES AND SEVERAL WARNING LIGHTS ILLUMINATED (BRAKES, ABS, TRACTION CONTROL) ALONG WITH A WARNING SOUND. THIS WAS ON A CITY STREET, DRIVING IN A STRAIGHT LINE. I WAS ABLE TO BRAKE TO A STOP. I THEN ATTEMPTED TO CONTINUE TO DRIVE AT A VERY LOW SPEED BUT SOON LOST ALL ABILITY TO BRAKE THE VEHICLE AND I COASTED TO A STOP. I HAD THE VEHICLE TOWED TO A LOCAL TOYOTA DEALER. I WAS TOLD THE BRAKE ACTUATOR HAD FAILED AND WAS CHARGED $3288 PLUS TAX FOR THE REPAIR. I RECEIVED THE CAR ON JAN. 9, 2018 FROM THE DEALER. ON JAN. 12, 2018 THE CAR FAILED ONCE AGAIN IN THE EXACT SAME MANNER. THE DEALER KEPT THE CAR UNTIL FEB. 1, 2018 AT WHICH TIME THEY RETURNED THE CAR TO ME AT NO CHARGE, STATING THEY HAD CHANGED THE SAME EXACT PART AS BEFORE. THE CAR HAS 84,000 MILES AND I PURCHASED IT NEW. I UNDERSTAND TOYOTA HAS ISSUED RECALLS FOR THIS ISSUE ON OTHER MODELS BUT NOT ON MY VEHICLE. I HAVE RETAINED MY REPAIR INVOICES BUT AM UNABLE TO UPLOAD THEM AT THIS TIME.

NHTSA ID
11067249
Incident
Jan 3, 2018
Mileage
84,000 mi
Driver assistance
Filed May 19, 2014

WHEN THE VEHICLE HITS A BUMP, ROCK OR UNEVEN ROAD WHILE DECELERATING, THE VEHICLE SUDDENLY ACCELERATES. IT FEELS LIKE WHEN YOU SKIP A STEP. I HAVE HAD THE VEHICLE SINCE DECEMBER 2012 AND THIS HAS HAPPENED ENOUGH TIMES THAT I DO NOT THINK ITS FORTUITOUS. THE SUDDEN ACCELERATION MAKES THE CAR TRAVEL A COUPLE OF FEET. UPDATED 12/5/2014 *JS

NHTSA ID
10592592
Incident
May 19, 2014
Mileage
38,000 mi
BrakesDriver assistance
Filed Jan 18, 2014
Crash reported

I BOUGHT PRIUS V IN FEBRUARY 2012. I'VE NOTICED FEW TIMES ISSUES WITH BRAKES. WHILE DECELERATING WITH MY FOOT ON THE BRAKE PEDAL TO SLOW THE CAR TO A STOP AND IF THE CAR GOES OVER A POTHOLE OR SLIGHT BUMP ON THE ROAD THEN CAR ACCELERATES FORWARD BEFORE COMING TO A STOP. THIS IS SAFETY HAZARD SINCE IT ALMOST LED TO HITTING THE OTHER CAR'S REAR BUMPER. ALSO, I'VE GOTTEN INTO AN ACCIDENT IN DECEMBER 2013 WHERE THERE WAS ANOTHER BRAKE ISSUE. I STOPPED MY CAR IN THE INCLINE ROAD BY PUTTING MY FOOT ON THE BRAKE PEDAL. THEN, I CHANGED THE GEAR SHIFT TO REAR AND SLOWLY TOOK MY FOOT OFF THE BRAKE PEDAL SO THAT I CAN BACK INTO THE STREET PARKING WHICH WAS ONLY ABOUT 4 TO 5 FEET AWAY. SUDDENLY, CAR SPED DOWN THE ROAD GOING REAR DIRECTION TO THE DIRECTLY OPPOSITE STREET AND HIT TWO PARKED CARS. I HAD PUT THE FOOT DOWN ON THE BRAKE PEDAL WHEN I NOTICED THE CAR GOING REAR FAST BUT IT WOULD NOT STOP THE CAR FROM GOING DOWN THE ROAD. I HAD NO CONTROL OVER THE CAR OR THE SPEED. THIS IS MAJOR SAFETY HAZARD SINCE SOMEONE COULD HAVE BEEN SERIOUSLY INJURED WITH LOSING CONTROL OF THE BRAKE AND ACCELERATION. I'VE OWNED OTHER TOYOTA CAR (CAMRY) BEFORE BUT NEVER HAD THIS ISSUE UNTIL THIS PRIUS V. MY CAR HAS BEEN IN BODY SHOP FOR OVER A MONTH WITH REPAIRS. I PLAN TO TAKE THE CAR TO THE TOYOTA DEALER TO CHECK OUT THIS BRAKE ISSUE. *TR

NHTSA ID
10560460
Incident
Dec 19, 2013
Mileage
15,800 mi
BrakesDriver assistancePowertrain (other)
Filed Dec 21, 2013
Crash reported

THE CAR WAS PARKED ON A STEEP INCLINE WHILE I CLOSED A GATE BEHIND ME TO A GATED DRIVEWAY. WHEN I GOT BACK IN THE CAR AND PUT THE CAR IN DRIVE, I TOOK MY FOOT OFF OF THE BRAKE AND BEFORE I COULD GET IT TO THE GAS PEDAL THE CAR IMMEDIATELY ROLLED BACK AND INTO THE GATE. THE CAR RELEASED AS IF IT WAS A STANDARD SHIFT CAR THAT NEEDED A CLUTCH AND SLAMMED INTO THE GATE. I HAVE TAKEN THE CAR TO OTHER SAFE SPOTS THAT ARE ON HILLS AND FOUND THAT THIS CAR CAN NOT HOLD A STOPPED POSITION ON AN INCLINE. *TR

NHTSA ID
10556928
Incident
Jul 25, 2013
Mileage
9,000 mi
BrakesDriver assistance
Filed Oct 27, 2013
Crash reported

DRIVER WAS MAKING A SHARP LEFT TURN INTO A PARKING SPACE AT LOW SPEED AND ATTEMPTED TO BRAKE TO A STOP. THE VEHICLE DID NOT SLOW DOWN AT ALL DESPITE HARD PRESSURE ON BRAKE PEDAL BUT INSTEAD ACCELERATED,JUMPED A CURB IN FRONT OF THE VEHICLE AND HIT A WALL WHICH STOPPED THE CAR. NO ONE WAS INJURED BUT FRONT BUMPER BADLY GOUGED AND FRONT DOOR SLIGHTLY DENTED. DRIVER WAS ABLE TO PUT THE CAR IN REVERSE AND GET OFF THE SIDEWALK. VEHICLE IS NOW AT TOYOTA DEALER FOR INSPECTION. UPON REFLECTION 2 OTHER INCIDENTS OCCURRED WHERE WHAT FELT LIKE A MOMENTARY SPEEDUP OCCURRED AGAIN AT LOW SPEED WHILE TURNING AND BRAKING. BUT THESE 2 WERE WHILE MOVING FORWARD AND NOT ATTEMPTING TO BRING THE VEHICLE TO A COMPLETE STOP. *TR

NHTSA ID
10549685
Incident
Oct 26, 2013
Mileage
16,004 mi
Driver assistance
Filed Jul 16, 2013

FROM A STANDSTILL, UNDER LIGHT WINTER CONDITIONS, THERE HAVE MANY TIMES WHEN THE VEHICLE WILL NOT/CAN NOT MOVE. WHEN THE ACCELERATOR IS DEPRESSED POWER IS SENT FOR A FRACTION SECOND (VERY QUICK PULSE) AND THEN ALL POWER IS CUT OFF AND NOTHING FURTHER HAPPENS UNTIL YOU LIFT OFF ACCELERATOR AND TRY AGAIN. IT DOES THE SAME THING IN REVERSE. THE ONLY WAY OUT OF THIS CYCLE IS TO PHYSICALLY PUSH THE CAR TO GET IT MOVING(SLOW WALKING PACE) AND THEN THE TRACTION CONTROL BEHAVES VERY MUCH LIKE OUR 2012 CAMRY SE V6. A COUPLE TIMES WE HAD OUR CAMRY RIGHT NEXT TO THE PRIUS(SIDE BY SIDE) AND THE CAMRY WAS ABLE TO GET ITSELF MOVING(WITH TC ON) AND PRIUS WOULD NOT BUDGE. BOTH HAVE THE FACTORY TIRES, THE PRIUS TIRES ARE IN BETTER SHAPE THAN THE CAMRY. I KNOW THE TWO VEHICLES ARE VASTLY DIFFERENT AND THAT THIS COMPARISON MAY BE OF LITTLE HELP; I SIMPLY WANT TO EXPRESS THAT THE CONDITIONS THE PRIUS WILL NOT FUNCTION UNDER SHOULD NOT BE THOUGHT OF AS EXTREME, BUT RATHER ORDINARY WINTER CONDITIONS. IT SEEMS THAT THE PRIUS TRACTION CONTROL PARAMETERS DO NOT EVEN GIVE THE CAR THE CHANCE TO GET MOVING BEFORE SHUTTING THE SYSTEM DOWN. *TR

NHTSA ID
10525127
Incident
Feb 6, 2013
Mileage
12,000 mi
BrakesDriver assistanceEngine
Filed Apr 24, 2013

MY CAR HAS AN ISSUE I FIRST NOTICED SOON AFTER I BOUGHT IT, AND THAT NOW HAPPENS AT LEAST TWICE A WEEK. THE DATE I'VE ENTERED IS THE APPROXIMATE FIRST DATE I NOTICED THE PROBLEM OCCUR. I DESCRIBE BELOW A MORE RECENT INSTANCE OF THE SAME BEHAVIOR, THE TIME WHEN IT FELT THE LEAST SAFE. /// THE RECURRING BEHAVIOR IS THAT WHILE DECELERATING WITH MY FOOT ON THE BRAKE PEDAL, IF THE CAR GOES OVER AN OBSTRUCTION LIKE A ROCK, A ROUGH PATCH OF ROAD, OR A POTHOLE, IT SOMETIMES LURCHES FORWARD BEFORE RESUMING DECELERATION. THE SENSATION IS OF ACCELERATING, BUT EVEN IF IT'S ONLY THAT THE CAR MOMENTARILY STOPS DECELERATING IT'S DISCONCERTING AND IN A FEW INSTANCES HAS GOTTEN ME CLOSE TO AN ACCIDENT. /// THE TIME IT CAME CLOSEST TO CAUSING AN ACCIDENT WAS ON 3/21/13, WHEN I FEARED THE CAR WAS GOING TO ROLL INTO A CROSSWALK AS PEOPLE CROSSED. WITH MY FOOT ON THE BRAKE, COMING TO A STOP AT A STOP SIGN, WE WENT OVER UNEVEN PAVEMENT AND THE CAR LURCHED FORWARD WHILE ONLY A FEW FEET FROM THE CROSSWALK. SEVERAL PEOPLE WAITED CLOSE TO THE EDGE OF THE SIDEWALK AT A BUS STOP. ONE OF THEM SEEMED READY TO STEP OUTTO CROSS THE STREET, AND I BRACED FOR THE WORST. /// ULTIMATELY I STOPPED A FEW FEET BEFORE THE CROSSWALK, BUT THE SITUATION FELT COMPLETELY UNSAFE SINCE IT INVOLVED LOSING STOPPING POWER WHILE COMING TO A STOP SIGN WITH PEDESTRIANS PRESENT. *TR

NHTSA ID
10509497
Incident
Dec 2, 2011
Mileage
1,200 mi
Driver assistance
Filed Mar 8, 2013
Crash reported

TL* THE CONTACT OWNS A 2012 TOYOTA PRIUS V. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 10 MPH AND DECELERATING, THE VEHICLE ERRONEOUSLY ACCELERATED AFTER HITTING A BUMP IN THE ROAD. THE CONTACT CRASHED INTO THE PRECEDING VEHICLE. THERE WERE NO INJURIES ASSOCIATED WITH THE CRASH. THE POLICE WERE NOT CONTACTED. THE VEHICLE WAS LATER TAKEN TO THE DEALER WHO WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE AND CURRENT MILEAGES WERE APPROXIMATELY 9,700. THE VIN WAS UNAVAILABLE. *TR

NHTSA ID
10502085
Incident
Mar 1, 2013
Mileage
9,700 mi

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