35 of the
283 complaints filed about the Toyota Prius C
are about the other systems —
12% of everything owners reported.
The worst model year for it is 2012.
My 2013 Toyota Prius has a failed inverter/converter assembly, including the Intelligent Power Module (IPM). This component is critical for vehicle operation and designed to last the life of the car. Premature IPM shorting and inverter failure is a known defect acknowledged by Toyota through multiple recalls and service campaigns for other VINs with the same part number. My vehicle is giving codes P0A94 and P0A1A which are also listed in the recalls for other Prius models of similar age. My vehicle experiences the same failure, yet Toyota has denied goodwill coverage, claiming “insufficient service history.” Routine maintenance like oil changes and brake inspections does not affect this component, making the denial unreasonable. There is nothing to service on the inverter. This defect poses a serious safety risk, sudden inverter failure caused total loss of power while driving and loss of power steering, it was difficult to pull my car off the road. This poses a danger to drivers, passengers, and others on the road. Toyota’s exclusion of my VIN from coverage leaves me financially responsible for a known safety defect. I request NHTSA to investigate Toyota’s handling of inverter/IPM failures, the denial of goodwill assistance for affected VINs, and ensure that Toyota addresses this life-threatening defect consistently across all affected vehicles instead of narrowing the scope on who gets coverage when this is a dangerous electrical malfunction.
NHTSA complaint #11690862 — an unverified report by a vehicle owner.
Cruise Control Not Working. Traction Control Light Active, Brake Light Active, And Light Active The cause was diagnosed by Toyota of Paris. TSB for C1391 Code abnormal leak in accumulator. The corrective action is to replace brake booster assembly with Master cylinder and Brake Booster pump Assembly.
NHTSA complaint #11673351 — an unverified report by a vehicle owner.
We were driving on a city street about 25-30mph and the car jerked suddenly and the lights on the dashboard illuminated and the "Check Hybrid System" message came up as well. The car was able to coast to a nearby parking lot. We attempted to drive the car home and the car stalled in the middle of the street. We were able to push the car off the road and then get it towed. The presented a potentially very dangerous situation as the car had a complete failure while driving in the middle of the road. The Toyota service department ran a diagnosis which returned DTC P0A94. All of this indicates that the car should be covered under the CUSTOMER CONFIDENCE PROGRAM 23TE03 however that program seems to only cover the 2010-2015 Prius and 2011-2017 Prius V models and not the Prius C. There are several reports of this same issue happening on the Prius C as well though so it doesn't make sense that it is not covered.
NHTSA complaint #11667479 — an unverified report by a vehicle owner.
My 2014 Toyota Prius C experienced a complete hybrid inverter failure. The part number of the inverter is the same as the one covered under Toyota’s inverter recalls (such as Recall J0V), yet my VIN is not included. The failure created a serious safety concern, as the vehicle lost power while in motion. Toyota’s recall appears to be too limited in scope and may need to be expanded to cover Prius C models that share the same faulty part. I am requesting that NHTSA investigate this issue, as it appears to involve the same hardware defect acknowledged in other Prius models.
NHTSA complaint #11659113 — an unverified report by a vehicle owner.
There was a driver side collision and the airbags did not deploy. Brakes do not slowly apply they slam down causing vehicle to slide/skid in emergency braking, ABS does not function properly. The dealership recently did an appraisal (4/2/25) on the vehicle that states “Lost communication with side airbag sensor LH, Side airbag sensor LH initialization incomplete, front speed sensor RH & LH circuit, and D- Door Motor ECU communication stop”. Insurance company inspected vehicle after crash, and there was a police report filed. There were no warning indicators prior to incident or after.
NHTSA complaint #11652650 — an unverified report by a vehicle owner.
Watergets into the body of the car for years since i bought the car i chaged the "body plugs" at the dealer they told me that would fix the problem but whenever it rains floor and trunk fills with water.
NHTSA complaint #11571037 — an unverified report by a vehicle owner.
My letter to Toyota: I'm writing this in regard to an inverter issue my 2012 Prius C recently experienced. While driving last month my car completely shut down, no warning and thankfully cars avoided hitting me and I was able to get from the middle lane to be able to coast to a side street in which I had to be towed. It turned out it was an inverter issue which had to be replaced. Granted my vehicle has less than 135k even though it is a 2012. I have done research and found models of Prius had the same exact issue(s) which was part of a warranty enhancement and I truly think my vehicle should be included. I want this to be looked in to and addressed. I will be contacting NHTSA also in regard to this. I filed with Toyota and ref#230323001904
NHTSA complaint #11513487 — an unverified report by a vehicle owner.
I was driving on freeway when my vehicle shut off and wouldnt start again. It almost caused an accident thankfully not. I paid to have car taken tothe repair shop Viva Toyota in Las Cruces NM and they inspected it and gave me a quote on repair as well what was causing the problem. There was a saftey recall for the PCU and i believe the inverter is causing the failure. please help me to get this figured out.
NHTSA complaint #11484484 — an unverified report by a vehicle owner.
Problem one: water in the passenger taillight. I got on YouTube to find a video to repair it, and guess what? The person in the video was replacing HIS taillight for the exact same problem! PS. I uploaded a picture, and it's sideways! But if you look closely, you can see the water line! Can I get a refund if I get the dealer to replace this?
NHTSA complaint #11459900 — an unverified report by a vehicle owner.
While in line at a church food bank, with cars in front and in back of me, the Prius C suddenly lunged forward. While my foot was on the brake, I hit the car in front of me. The impact was strong enough to cause almost $1400 worth of damage to the car in front of me and more than that for my car. My car's fender is damaged as well as the lights and hood of the car. My sister was in the passenger seat and nephew in the back seat. My sister told me that all she could see when the sudden movement started was my foot on the brake. She said that from where she was sitting, she could not see if my foot was on the gas pedal but could clearly see when my foot was on the brake. So lucky that there were no injuries either to the husband and wife in the car in front of me nor to my passengers. There is no reason for me to have accelerated that fast when the car in front moved a fraction of feet at a time. I would release the brake and the car would move slowly until I applied the brake again. The Prius was inspected by Toyota at a dealer and we were told they could find no sign of anything wrong with the car. There were no warning lights or messages before the sudden acceleration happened. Due to the possibility of it happening again, we decided to park the car in case any litigation could be processed. We have been denied by many law firms due to the fact that there were no serious injuries and the age of the car. About a month after the incident, we bought a new Prius and if unable to litigate, will sell the car for parts. My fear is that it may happen again and could seriously injure or kill someone or the driver and/or passengers in our 2013 Prius. We will not allow it to be driven again and will either junk or sell for parts. Is there any recourse for us to pursue to be refunded for the damage that we paid to the couple whose car we hit, a rental until we bought the new car and refund for the 2013 Prius. Thank you very much for your attention.
NHTSA complaint #11417643 — an unverified report by a vehicle owner.
DRIVERS SIDE DOOR LOCK MALFUNCTION.DRIVERS SIDE DOOR WILL NOT OPEN WITH KEYLESS REMOTE OR BY RESTING MY HAND ON THE DOOR HANDLE WHICH SHOULD AUTOMATICALLY OPEN ALL DOORS. I TRIED USING ELECTRONIC UNLOCK BUTTON INSIDE DRIVERS SIDE DOOR AND ALSO WON'T OPEN.IT APPEARS TO BE A BAD DRIVERS SIDE UNLOCK ACTUATOR WHICH HAS SO MANY COMPLAINTS THAT ITS OBVIOUS THIS PART IS NOT BUILT CORRECTLY. IT IS A SAFETY CONCERN BECAUSE YOU CAN GET LOCKED INSIDE VEHICLE.
NHTSA complaint #11365056 — an unverified report by a vehicle owner.
IRECEIVED THE WARNING THAT "PRE-COLLISION SYSTEM MALFUNCTION" WHILE I WAS DRIVING ON THE HIGHWAY THIS MORNING. THE WARNING MESSAGE ASKED ME TO STOP THE CAR AT A SAFE PLACE AND VISIT THE DEALER. AS SOON AS I GOT OFF THE HIGHWAY, THE CAR STOPPED ITSELF, AND THE STEERING WAS LOCKED. THE CAR WAS COMPLETELY DISABLED. AFTER TURN OFF THE CAR COMPLETELY FOR A FEW MINUTES, I CAN RESTART THE CAR WITH THE WARNING MESSAGE PERSISTS. WHILE I WAS LOOKING FOR A SAFE PLACE TO PARK THE CAR, THE CAR GRADUALLY STOPPED ITSELF AGAIN, AND THE WHEEL STEERING LOCKED ITSELF AGAIN. THE CAR FAILURE AND THE FACT THAT THE STEERING WHEEL GOT LOCKED ITSELF PUT ME AND MY PASSENGER AT GREAT DANGER.
NHTSA complaint #11361389 — an unverified report by a vehicle owner.
DRIVING ON A HIGHWAY ON MY WAY TO WORK SUDDENLY THE MY 2013 PRIUS C ENGINE COMPLETELY STOPS. THE CHECK ENGINE LIGHT AND CHECK HYBRID SYSTEM LIGHT CAME ON. THE CAR COMPLETELY SHUTS DOWN AND NOW I'M A SITTING DUCK GOOD THING PEOPLE SLEW DOWN FOR ME AND EVEN HELP ME PUSH MY CAR TO THE SIDE OF THE ROAD SAFELY. THIS IS A VERY DANGEROUS SITUATION AND NEEDS ATTENTION. IVED TAKEN MY CAR TO ANTIOCH TOYOTA AND EMPHASIZE THAT I SAW 2 RECALLS ON THIS WEBSITE BUT THE DID NOT BELIEVE ME AND THEY ARE CHARGING ME OVER $4000 TO FIX IT. IT'S NOT RIGHT FOR THEM TO JUST CHECK THEIR SYSTEM AND NOT CHECK A NHTSA WEBSITE FOR RECALLS AND COMPLAINTS. IT'S VERY IRRESPONSIBLE FOR THEM NOT TO CHECK FOR RECALLS
NHTSA complaint #11337095 — an unverified report by a vehicle owner.
MY 2012 PRIUS C WITH 90,000 MILES BEGAN TO LOSE POWER/SPEED DRIVING WHEN CHECK HYBRID SYSTEM WARNING SUDDENLY CAME ON TONIGHT. IT WAS UNRESPONSIVE TO THE GAS PEDDLE, EVEN AT FULL THROTTLE. DID NOT ALLOW ENOUGH TIME TO PULL TO THE SIDE OF A BUSY ROAD BEFORE IT LOST ALL ABILITY TO DRIVE, LEAVING ME STALLED NEAR INTERSECTION. A STRANGER HELPED PUSH MY CAR OFF THE MAIN ROAD UNTIL AAA SENT A TOW TRUCK. HAD THIS OCCURRED ONE MILE LATER, I WOULD'VE STALLED ON THE 25 SOUTHBOUND FREEWAY GOING FROM LONE TREE TO DENVER AT A VERY BUSY TIME IN THE EVENING WITHOUT WARNING (SCARY THOUGHT). UPON ARRIVING HOME WITH THE TOWED VEHICLE, I ATTEMPTED TO START THE ENGINE AGAIN, BUT IT WOULD NOT START. TURNED OFF THE IGNITION, REMOVED KEYS, BUT A LOW SOUND I'VE NEVER CONTINUED FOR SEVERAL MINUTES. AFTER THAT, THE CAR WAS COMPLETELY DEAD. DASHBOARD WON'T LIGHT UP, NO WORKING HORN, POWER LOCKS, WINDOWS, ALARM. I NOW HAVE NO FUNCTIONING VEHICLE AND HAVE NO IDEA WHAT CAUSED MY CAR TO LOSE POWER WHILE DRIVING.
NHTSA complaint #11290670 — an unverified report by a vehicle owner.
THE PRE-COLLISION HAS NEVER WORKED , TOOK IT IN TO TOYOTA AND THEY SAID IT WAS GOOD AND THAT THERE WAS NO WAY TO TEST IN REAL LIFE . BUT IT HAS NOT WORKED SINCE CAR WAS NEW . THERE HAVE BEEN MANY TIMES WHEN THERE WAS A CAR VERY CLOSE STOPPED OR MOVING SLOW IN FRONT OF CAR AND I AM APPARENTLY READY TO HIT ,BUT NO ALARM OR SIGNAL.
NHTSA complaint #11190132 — an unverified report by a vehicle owner.
WHEN I AM IN THE PROCESS OF BRAKING AND HIT A ROUGH SPOT IN THE ROAD SUCH AS A POTHOLE, I ESSENTIALLY LOSE CONTROL OF THE CAR FOR A SPLIT SECOND. IT FEELS JERKY LIKE IT LURCHES FORWARD OR SHAKES SIDE TO SIDE. ITS NOT VERY PRONOUNCED BUT ENOUGH TO MAKE ME FEEL UNSAFE. THIS HAPPENS EVERY TIME I AM BRAKING AND RUN OVER POTHOLES, SO ITS NOT AN ISOLATED INCIDENT THAT ONLY HAPPENED ON ONE DAY, AND IT DOESN'T MATTER HOW HARD I'M BRAKING OR HOW FAST I'M GOING UNLESS I'M BARELY MOVING (THEN IT DOESN'T JERK).
NHTSA complaint #11181608 — an unverified report by a vehicle owner.