Owner-reported complaints naming the other system, filed with NHTSA
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Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above. Every record below is an owner-reported complaint about the 2012 Toyota Prius submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 17 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.
Shown in the owner’s own words, exactly as filed
Unknown. There were a multitude of codes that appeared on the diagnostics causing problems with engine. The temperature, brake, tire sensor lights are all on. The cruise control is not working. White smoke emitting from tail pipe and engine. Main engine coolant leaking. Car overheating rapidly.
The contact owns a 2012 Toyota Prius. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the check engine and the hybrid warning lights were illuminated, and the vehicle decelerated. The contact received notification of NHTSA Campaign Number: 18V684000 (Hybrid Propulsion System). The vehicle was taken to the dealer; however, the contact was informed that parts were not yet available for the recall repair. The contact was informed that the parts might be available within a week. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 137,000.
The styrofoam padding of the headrest came unglued from the plastic base of the headrest. This was discovered when removing fabric to wash the fabric. Car was not driving at the time.
The contact owns a 2012 Toyota Prius. The contact stated while driving 60 MPH, there was an abnormal grinding sound coming from the brakes while the brake pedal was depressed. The brakes, the traction control, and the ABS warning lights were illuminated. The vehicle was then taken to an independent mechanic where it was diagnosed with brake booster and master cylinder assembly failure. The vehicle was not repaired for the most recent failure. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 106,019.
2012 Prius in very good condition with 180k miles- only 12 years old. Driving on back roads (thankfully) and the drivers side rear wheel compelely fell off while driving. I was doing about 30 MPH and felt like there was a flat tire so I was in the process of pulling over when the whole rear assembly snapped. The wheel hit the rear quarter of the car and bounced about 100 feet down the road. I could have been on the highway and this could have been fatal I believe. Very, Very scary. As can be seen in attached photos the issue was rust from the inside. This is very concerning since there was no way for me to know this was an issue. I could have been killed or killed someone else. I believe Toyota needs to look into this since there are other Prius' out there the same thing happened to on this very thread. Although this is a Massachusetts car I have owed it since 25k miles and have maintained it impeccably. I always have the undercarriage cleaned after driving on salty roads. Safety inspection was current- only done the month before. Had that wheel bearing replaced about 2 weeks before the incident and the reputable mechanic reported no issues. There was no warning except for maybe a minute before it happened- the car was vibrating like I had a flat tire. The damage repair estimate on this was $8500. Catastrophic fail Toyota. Is this a rust issue like the Tacoma, Tundra, and Sequoia?????
******* DELETE VOQ ******* THIS COMPLAINT IS BEING MARKED FOR DELETION BECAUSE IT IS REQUESTED BY THE CONSUMER THAT THEY WISH TO HAVE IT REMOVED. DJR ******* DELETE VOQ *******
MORE THAN ONCE I WAS DRIVING ABOUT 40/45MPH, ONCE ON A CURVE, ANYHOW AS I WAS GOING THROUGH THE CURVE IT FELT AS THOUGH THE BRAKES ENGAGED, WITHOUT ME TOUCHING THEM. I UNDERSTAND THE SAFETY THING, HOWEVER AT BOTH INSTANCES IT WAS NOT NECESSARY. IT CAUSED THE CAR TO PULL TO THE LEFT. ALMOST CAUSING ME TO LOOSE CONTROL.
TL* THE CONTACT OWNS A 2012 TOYOTA PRIUS. WHILE DRIVING 20 MPH, THE VEHICLE BEGAN TO STALL AND A WARNING INDICATOR SIGNALED THE CONTACT TO PULL THE VEHICLE OVER. THE CONTACT WAS ABLE TO COAST THE VEHICLE INTO A PARKING SPACE. THE VEHICLE WAS TOWED TO MARIETTA TOYOTA (750 COBB PKWY S, MARIETTA, GA 30060, (470) 938-8436) WHERE IT WAS DIAGNOSED THAT THE HYBRID INVERTER NEEDED REPLACEMENT. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN *BF .
TL* THE CONTACT OWNS A 2012 TOYOTA PRIUS. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V684000 (HYBRID PROPULSION SYSTEM). THE DEALER (SOUTH BAY TOYOTA, 18416 S WESTERN AVE, GARDENA, CA 90248, 310-323-7800) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE CONTACT STATED THAT THE VEHICLE ONLY ACCELERATED TO 9 MPH WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS UNKNOWN. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
MY HUSBAND WAS DRIVING THE CAR PREPARING TO TURN TO ENTER THE FREEWAY WHEN THE PRIUS LOST ALL DRIVING POWER SPONTANEOUSLY AT THE SAME TIME PROMPTED WITH A WARNING ON THE SCREEN 'CHECK HYBRID SYSTEM AND PARK IN A SAFE PLACE'. THE CAR LOST ALL DRIVING POWER INCLUDING POWER STEERING BUT MY HUSBAND WAS ABLE TO GLIDE THE VEHICLE ACROSS SEVERAL LANES TO A PARKED POSITION BEFORE THE FREEWAY ENTRANCE. THE CAR NEVER RESUMED ITS ABILITY TO DRIVE DESPITE TURNING IT OFF AND AN ATTEMPT TO RESTART. THE PRIUS WAS TOWED TO THE HOUSE AND TOWED AGAIN TO THE DEALERSHIP THE FOLLOWING DAY FOR AN ASSESSMENT AND REPAIR. AS A TOYOTA CUSTOMER, WE WERE INFORMED THE VEHICLE HAD EXPERIENCED INVERTER/COMPONENT FAILURE. MY VEHICLE HAD A RECALL YEARS EARLIER TO REFLASH SOFTWARE IN THE PRIUS INVERTER, BUT THIS DID NOT RESOLVE/PREVENT THE SPONTANEOUS INVERTER FAILURE WE EXPERIENCED ON WEDNESDAY, MARCH 28, 2018. IT HAS BEEN BROUGHT TO MY ATTENTION THAT TOYOTA CORPORATION IS AWARE OF SEVERAL CUSTOMERS REPORTING SIMILAR OR NEAR IDENTICAL CIRCUMSTANCES, BUT ARE NOT ISSUING A RECALL TO PREVENT THIS FROM HAPPENING TO A TOYOTA DRIVER ON THE ROAD. TOYOTA IS AGREEING TO REPLACE PARTS AT NO COST TO ME, WITH NO GUARANTEE THIS WILL CORRECT ANY INVERTER FAILURE. I HAVE REQUESTED THE SYSTEM BE REPLACED BASED ON TOYOTA'S CORRECTIVE ACTION ON THE NEWEST PRIUS MODELS, BUT THEY HAVE DENIED MY REQUEST. IF TOYOTA IS ACKNOWLEDGING COST FOR THIS VEHICLE FAILURE, WHY IS IT NOT A RECALL? IF TOYOTA HAS MADE ATTEMPTS TO CORRECT THIS VEHICLE FAILURE IN NEWER PRIUS MODELS BY INSTALLING IMPROVED INVERTER SYSTEMS, WHY AM I BEING DENIED THE SAFETY OF ALSO HAVING AN IMPROVED AND NEW INVERTER SYSTEM INSTALLED IN MY PRIUS AFTER WHAT WE HAVE EXPERIENCED AND REPORTED TO BOTH THE TOYOTA DEALERSHIP AND TOYOTA CORPORATION? PLEASE INVESTIGATE BEFORE INJURY OR FATALITY COMES FROM THIS CORPORATE NEGLECT OF AN IDENTIFIED PROBLEM.
TL* THE CONTACT OWNED A 2012 TOYOTA PRIUS. WHILE DRIVING 60 MPH, THE ENGINE STALLED. VARIOUS WARNING LIGHTS ILLUMINATED AND A BEEPING NOISE WAS PRESENT. THE CONTACT'S VEHICLE COASTED TO A STOP AND WAS REAR ENDED BY ANOTHER VEHICLE. A POLICE REPORT WAS FILED. THE AIR BAGS DID NOT DEPLOY. THE CONTACT SUSTAINED INJURIES TO THE FOREARM THAT REQUIRED MEDICAL ATTENTION. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V053000 (ELECTRICAL SYSTEM, HYBRID PROPULSION SYSTEM). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS DESTROYED AND TOWED. THE FAILURE MILEAGE WAS APPROXIMATELY 45,000.......UPDATED 04/01/16 *BF *JS CONSUMER STATED THERE HAVE BEEN PREVIOUS STALLS WHICH THERE HAVE BEEN RECALLS. UPDATED 6/7/18*JB
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
WHEN GOING FROM PARK TO DRIVE FORWARD, THE CAR SLIPS INTO REVERSE!!! I'VE TAKEN IT TO TOYOTA MULTIPLE TIMES AND THEY SAY THEY FIND NOTHING WRONG! I HAVE TO BE VERY CAREFUL TO BE SURE THE CAR IS ACTUALLY IN DRIVE BEFORE MOVING IT OR I COULD BACK INTO SOMETHING OR SOMEONE BY MISTAKE. *TR
TURNING RIGHT FROM A STOP SIGN STOP, THE CAR TOOK OFF IN AN UNINTENDED ACCELERATION AND COULD NOT BE STOPPED UNTIL IT HIT A CURB. THE FORCE BROKE THE BALL JOINT OF THE DRIVER'S SIDE WHEEL CAUSING THE WHEEL TO TURN APPROX 45 DEGREES. THE CAR THEN SKIDDED ABOUT 20 YARDS AND CAME TO A STOP WITH THE MOTOR RACING. IT WAS A SINGLE CAR CRASH WITH NO BODILY INJURY. *TR
UPON STARTING THE ENGINE AND ENGAGING THE AIR CONDITIONING OF MY 2012 TOYOTA PRIUS WITH 10,000 MILES, A STRONG FOUL SMELLING AIR COMES FROM THE A/C VENTS. AT THE 10,000 MILE SERVICING, THE TOYOTA SERVICE MANAGER STATED THIS SMELL IS TYPICAL TO SOME TOYOTAS. A TOYOTA TECHNICAL ASSISTANCE WAS PERFORMED. THE REPORT STATED "NO REPAIRS NEEDED AT THIS TIME VEHICLE IS OPERATING AS PER DESIGNED. I KNOW OF NO VEHICLE DESIGN THAT WOULD STREAM FOUL AIR FROM THE A/C VENTS OF A NEW CAR. MY SAFETY CONCERN IS WITH THE CONTAMINANTS CREATING THE FOUL SMELL AND HOW LONG CAN A HUMAN CONTINUE TO BREATHE THESE CONTAMINANTS BEFORE BECOMING ILL WITH RESPIRATORY PROBLEMS. *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
NAVAGATION SCREEN, WHEN SUN HITS THE SCREEN FROM RIGHT DIRECTION THE SCREEN CAN ACT LIKE A VERY BRIGHT MIRROR AND BLIND DRIVER WITHOUT WARNING. *TR
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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