Owner-reported complaints naming the driver-assistance system, filed with NHTSA
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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 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 24 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.
Brake getting stuck on the floor would have to press on brake really hard just to get a response, this will happen out of the blue! Driving in highway or just driving off the driveway. I almost hit a car in front of me due to lack of brake, i had to swerve to the side! First appear 1 day after buying the car..This issue needs to be worked on right away.
There is no incident occurring to me .but I change some parts like head light.& whisper .engine .
My breakes failed when driving. I almost got in accident. Code C1391. Brake Actuaror Failure. car has 200,000 miles. Toyota is denying to repair the car. It is well known problem with that but still not fixing.
ABS Actuator and Booster Assembly failing. No recall was issued but a safety bulletin to the dealer with a cutoff date and nothing issued to consumer to know it needs to be replaced. Now I am outside their service bulleting window with a 3,000 repair that should be covered indefinitely by toyota
The brake, abs, and stability control light come on and the brakes require more pressure to work . getting a code C1391 Abnormal Leak in the Accumulator. but I was never informed of this recall and there are no open recalls associated with my car
I HAVE NEVER RECEIVED A RECALL MAIL REGARDING THE CAR. I USED AN INSURANCE TRACKING PLUGIN, AND ALL THE PROBLEMS STARTED.PCS ERROR MESSAGE ON MY DASHBOARD, DUE TO A LEAK IN BRAKE BOOSTER THEY SAID. MY DEALERSHIP WILL NOT TELL ME IT'S A RECALL, MADE IT SEEM LIKE THEY HELPED ME INSTEAD OF CHARGING AS HIGH AS $4000. I WAS NOT GIVEN A LOANER CAR FOR THE 4DAYS THEY HAD MY CAR, AND DID NOT GET ANY REFUNDS FOR THE RENTAL CAR I GOT
THE PROBLEM STARTED WITH A CHIRPING NOISE WHEN THE BRAKE PEDAL IS DEPRESSED. TODAY THE CAR APPEARS TO LOSE REGENERATIVE BRAKING CHARGING. THE VEHICLE STABILITY CONTROL AND ABS LIGHT AND BRAKE LIGHT CAME ON. THE BRAKE APPEARED TO BE MUSHIED.
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.
IN EARLY OCTOBER I RECEIVED A RECALL NOTICE FROM TOYOTA FOR A "FAILSAFE DRIVING MODE" HYBRID SYSTEM FAULT THAT COULD CAUSE THE VEHICLE TO "STALL" INCREASING THE POSSIBILITY OF VEHICLE CRASH DURING CRITICAL DRIVING CONDITIONS. IT STATED I WOULD BE NOTIFIED WHEN THE FIX WAS AVAILABLE. 2 1/2 MONTHS LATER, I'VE YET TO HEAR FROM TOYOTA AND MY DEALERSHIP STATES THEY HAVE NOT RECEIVED REMEDY PARTS OR PROCEDURES FROM TOYOTA. ALL THEY COULD DO WAS GIVE ME A PHONE NUMBER AT TOYOTA CORPORATE. I CALLED THE NUMBER AND THE PERSON HAD NO FURTHER INFORMATION ON WHEN A FIX FOR THE PROBLEM WOULD BE AVAILABLE. SHE STATED THE ORIGINAL NOTICE STATED A TIME FRAME OF 2-3 MONTHS; IN FACT, IT DOES NOT CONTAIN ANY TIME PERIOD INDICATION. IT IS INAPPROPRIATE FOR FIX FOR SOMETHING OF THIS POTENTIAL MAGNITUDE TO TAKE SO LONG. I'M CONCERNED THAT TOYOTA, AS THEY HAVE DONE WITH OTHER RECALL ISSUES, IS MERELY DELAYING TO AVOID COSTS OF IMPLEMENTING THE FIX AND ENDANGERING ALL OWNERS FURTHER THAN THEY ALREADY HAVE. THE LADY STATED I COULD CONTACT THE DEALERSHIP ABOUT PROVIDING A RENTAL VEHICLE DURING THE PERIOD, SOMETHING THE DEALERSHIP HAS DENIED THEY WILL DO. I BOUGHT MY VEHICLE TRUSTING TOYOTA WOULD STAND BEHIND THE VEHICLE AND THEY ARE FAILING TO DO SO.
MY PRIUS WAS JUST FINE THEN ONE DAY IT STALLED WHILE I WAS DRIVING IN THE MIDDLE OF THE FREE WAY. I TOOK MY VEHICLE IN TO ELMORE TOYOTA IN WESTMINSTER, CA, THEY FOUND IT HAD A FAILED INVERTER AND IT WAS STILL COVERED UNDER WARRANTY. IT TOOK 2 WEEKS FOR THEM TO FIX IT, BUT WHEN THEY RETURNED MY CAR, THE SLIP INDICATOR WAS NOW ON AND WOULD NOT TURN OFF. THEY CLAIM IT WAS LIKE THAT PRIOR TO THE FAILED INVERTER, THIS WAS FALSE, MY CAR WAS RUNNING PERFECT. THEY THEN WANTED TO CHARGE ME NEARLY $1K TO FIX A PROBLEM I DID NOT HAVE PRIOR TO FAILED INVERTER. I FEEL THE SITUATION WAS CONNECTED BUT THEY REFUSE TO COVER IT.
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
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.
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.
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
TL* 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. THE CONSUMER STATED WHEN SHE APPLIED THE BRAKE LIGHTLY, THE ENGINE REVVED UP AND THE VEHICLE DID NOT SLOW DOWN. THE CONSUMER HAS SINCE SOLD THE VEHICLE. UPDATED 09/23/14
2012 TOYOTA PRIUS. CONSUMER WRITES IN REGARDS TO VEHICLE SUDDEN ACCELERATION. *SMD THE CONSUMER STATED AS HE ENTERED A PARKING LOT AND TURNED TO GO DOWN AN AISLE, HE HIT THE CURB TOO CLOSELY AND THE VEHICLE ACCELERATED AT AN INCREDIBLE SPEED. HE PUT HIS FOOT ON THE BRAKE AND IT WENT TO THE FLOOR; HE TRIED TO TURN THE POWER OFF, BUT THE VEHICLE DID NOT STOP. AT THE RATE THE VEHICLE ACCELERATED, HE PASSED BY 2 PARKING AISLES AND WAS STOPPED BY HITTING A PARKED VEHICLE, WHICH THE FORCE OF HIS VEHICLE WAS PUSHED UNDER A FENCE AND ONTO A RAILROAD TRACK. THE VEHICLE WAS BADLY DAMAGED BECAUSE THE EMERGENCY BRAKE WAS ON AND THE IMPACT DESTROYED THE TRANSMISSION. THE DEALERSHIP REVIEWED THE COMPUTER DATA AND CONCLUDED THE VEHICLE DID NOT ACCELERATE ON ITS OWN. THEY IMPLIED HIS FOOT WAS ON THE ACCELERATOR AND NOT THE BRAKE. *JB
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 17 MPH, THE VEHICLE SUDDENLY ACCELERATED AND THE CONTACT CRASHED INTO ANOTHER VEHICLE. THE CONTACT STATED THAT THE BRAKES WOULD NOT RESPOND. THE CONTACT WAS NOT INJURED AND A POLICE REPORT WAS NOT FILED. THE CONTACT ADDITIONALLY STATED THAT ALL OF THE LIGHTS ILLUMINATED ON THE DASH BOARD AS THE VEHICLE ABNORMALLY ACCELERATED. THE VEHICLE WAS TAKEN TO THE DEALER BUT WAS NEITHER DIAGNOSED NOR REPAIRED. THE FAILURE MILEAGE WAS 30,500.
PARKING CAR IN HANDICAPPED SPOT - SPEED APPROXIMATELY 2 MPH - GAS ENGINE CUT IN AND THE CAR ACCELERATED AT A VERY HIGH SPEED. IT WENT OVER SPACE STOP (CONCRETE) - CROSSED THE SIDEWALK ONTO GRASS AND I HAD BOTH FEET ON THE BRAKE AND STOPPED THE CAR APPROX. 3 FEET FROM A WALL OF A BUILDING AND SHUT OFF THE ENGINE. THE HANDICAPPED SIGN SCRAPED THE WHOLE RIGHT SIDE OF MY CAR AND THERE ARE SEVERAL DENTS. THE SIGN WAS FINE. *TR
TL* THE CONTACT OWNS A 2012 TOYOTA PRIUS. THE CONTACT STATED THAT WHILE DRIVING AT LOW SPEEDS, THE VEHICLE SUDDENLY ACCELERATED. THE VEHICLE VEERED INTO ONCOMING TRAFFIC, RAN ONTO THE SIDEWALK, THEN CRASHED INTO A TREE. UPON IMPACT, THE AIR BAGS FAILED TO DEPLOY. THE DRIVER RECEIVED INJURIES TO THE NOSE, BACK, AND KNEES AND ALSO SUSTAINED TWO BLACK EYES. THE PASSENGER DID NOT SUSTAIN ANY INJURIES. THE POLICE WERE CONTACTED AND A REPORT WAS AVAILABLE. THE VEHICLE WAS LATER TOWED TO AN INDEPENDENT MECHANIC AND THE VEHICLE WAS DEEMED DESTROYED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE AND CURRENT MILEAGES WERE APPROXIMATELY 2,500. *TR
DRIVING 70 MPH CAR BEGAN TO GO INTO HIGH RPM, THEN ACCELERATED TO 74 FROM 70 MPH. I TRIED TO DECREASE SPEED THEN VEHICLE SHUT OFF GOT A LONG BEEP AND MESSAGE ON DISPLAY "CHECK HYBRID SYSTEM, PULL OVER IMMEDIATELY" ALL LIGHTS ON DASH WERE INDICATING FAILURES. COASTED TO SAFETY WITH 5 PASSENGERS IN VEHICLE ACROSS TRAFFIC AT 9:30 PM TO SHOULDER. TRIED TO RESTART SEVERAL TIMES THEN VEHICLE WENT INTO HIGH RPM THEN ENGINE KNOCKED LOUDLY AND WAS COMPLETELY DISABLED. LOST BRAKES, PEDAL WAS HARD, LOST POWER STEERING, DIFFICULT TO MANEUVER. I STILL HAD 2 BARS INDICATING PLENTY OF FUEL IN CAR. PRIOR FILLUP WAS 7.6 GALLONS AT PUMP, USUALLY GET OVER 500 MILES PER TANK, TRIP METER ONLY SHOWED UNDER 400 MILES SINCE FILL UP SO HAD PLENTY OF FUEL AND THERE WAS NO LOW FUEL INDICATOR. REPORTED ALL PROBLEMS TO DEALER. THEY ONLY NOTED THE CAR SHUT DOWN BUT TOLD ME THEY CONFIRMED EVERYTHING I SAID AND THAT TOYOTA ENGINEERS ARE TRYING TO RESOLVE THIS SINCE THEY ARE AWARE OF THIS TYPE OF PROBLEM. SO FAR DEALER AND TOYOTA HAVE NOT ADDRESSED THE HIGH RPM, THE ACCELERATION, LOSS OF ELECTRONICS AND HYBRID SYSTEM FAILURE AND TOLD ME THEY HAVENEVER HEARD OF ANY TOYOTA EVER HAVING A REPORT OF A HIGH RPM OR ACCELERATION WITHOUT INTENT TO ACCELERATE FORM THE DRIVER. VEHICLE IS UNSAFE, HAS 4944 MILES AND THIS PROBLEM OCCURRED ABOUT A MONTH AFTER PURCHASE. TOYOTA STILL DOES NOT KNOW WHAT THE PROBLEMS ARE AND IN POSSESSION OF THE VEHICLE. *TR *JS
TL* THE CONTACT OWNS A 2012 TOYOTA PRIUS. THE CONTACT STATED THAT AS SHE WAS ENTERING A PARKING SPACE AT 3 MPH, THE VEHICLE DID NOT STOP WHEN THE BRAKES WERE APPLIED. THE CONTACT CRASHED INTO A TREE. THE CONTACT WAS NOT INJURED. THE POLICE WERE NOTIFIED AND A POLICE REPORT WAS FILED. THE CONTACT'S INSURANCE COMPANY WAS CONTACTED WHO ADVISED THAT THEY WOULD INSPECT THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE WHO SENT A REPRESENTATIVE TO FURTHER ASSES THE FAILURE. AFTER INSPECTION, THE REPRESENTATIVE NOTICED THAT THE BRAKE AND ACCELERATOR PEDALS WERE DEPRESSED SIMULTANEOUSLY AND ADVISED THAT THERE WERE NO FAILURES WITHIN THE VEHICLE. THE FAILURE MILEAGE WAS 2,400.... UPDATED 08/15/12 *BF
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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