Page 48 of 57 · complaints 2,351–2,400 of 2,823

2010 Toyota Prius complaints

Owner reports filed with NHTSA about this vehicle, newest first and reproduced as filed. They are unverified accounts: one proves nothing, and a pattern across many is the thing worth reading. Back to the full 2010 record →

Service Brakes, HydraulicCrash
Filed Feb 4, 20107,000 milesCT

2010 TOYOTA PRIUS II--PURCHASED AUGUST 2009. ON JANUARY 23, 2010 I CRASHED MY VEHICLE INTO A CAR THAT HAD STOPPED IN FRONT OF ME. I APPLIED THE BRAKES BUT WAS UNABLE TO STOP THE CAR BEFORE IT HIT THE CAR IN FRONT OF ME. I AM CONTACTING YOU BECAUSE I BELIEVE THE BRAKE ISSUES WITH THE 2010 PRIUS MAY HAVE BEEN A CONTRIBUTING FACTOR IN THE CRASH. IN THE 5 MONTHS THAT I OWNED THE CAR I REMARKED THAT THE BRAKES DID NOT SEEM TO FUNCTION LIKE ABS BRAKES ON OTHER CARS THAT I HAD DRIVEN. I CHALKED IT UP TO THE FACT THAT CAR WAS NEW TO ME AND HAD MANY FEATURES THAT WERE DIFFERENT FROM A TRADITIONAL CAR. *TR

Service Brakes, Hydraulic
Filed Feb 4, 20101,000 milesNE

2010 TOYOTA PRIUS BRAKE ISSUE. WE ARE EXPERIENCING A MOMENTARY LOSS OF BRAKING CAPABILITY WHILE TRAVELING OVER AN UNEVEN ROAD SURFACE, POTHOLE OR BUMP. *TR

Service Brakes, ElectricCrash
Filed Feb 4, 201013,000 milesIA

WITH OUR 2010 TOYOTA PRIUS, MY WIFE HAD AN ACCIDENT WHERE THE VEHICLE SLID INTO A SNOW BANK WITHIN 1 BLOCK OF OUR HOME. JUST PRIOR TO THIS, I NOTICED THAT THE VEHICLE'S ANTI-LOCK BRAKE DID NOT SEEM TO FUNCTION PROPERLY. I USED TO WORK FOR GENERAL MOTORS IN MICHIGAN AND KNOW THE SOUND THAT COMES FROM WORKING ANTI-LOCK BRAKES. THE ANTI-LOCK BRAKES USED TO WORK EARLIER IN 2009...I HAD TO STOP ON A WET PAINT STRIPE AND THE ANTI-LOCKS MADE THE DISTINCTIVE RATCHETING SOUND. IN DECEMBER 2009, THAT SOUND AND THE LOSS OF BRAKING TRACTION WAS EVIDENT. NOT UNTIL I SEE THAT THERE IS NEWS IN THE MEDIA RECENTLY ABOUT THE PRIUS DID I THINK TO LODGE A COMPLAINT. THIS ACCIDENT CAUSED ME (AND MY INSURER) $1,024 IN DAMAGE TO OUR FRONT BUMPER. *TR

Service Brakes, Electric
Filed Feb 4, 20102,600 milesCA

AT 10MPH ON THE FREEWAY, MY 2010 PRIUS HESITATED TO BRAKE PROPERLY AND AS A RESULT MY LEFT FENDER MADE CONTACT WITH THE VEHICLE IN FRONT OF ME. AS RESULT, MY INSURANCE INCREASED, I HAD TO PAY $500 DEDUCTIBLE TO REPAIR MY BUMPER. THE BACK BRAKES HAVE SQUEAKED GOING IN REVERSE SINCE PURCHASE IN NOVEMBER 2009. *TR

Vehicle Speed Control
Filed Feb 4, 201015,000 milesNJ

I HAVE A 2010 TOYOTA PRIUS. SOMETIMES, PARTICULARLY WHEN I'M DRIVING OVER BUMPS, APPLYING THE BRAKE ACTUALLY CAUSES THE VEHICLE TO NUDGE FORWARD INSTEAD OF SLOWING DOWN. ONCE I HAVE CLEARED THE BUMPS, THE BRAKES THEN TAKE EFFECT. THE PROBLEM IS THAT THE CAR MAY NOT ACTUALLY SLOW DOWN FOR AN EXTRA 10 TO 20 FEET. THERE WAS ONE INCIDENT WHERE THIS HAPPENED NEAR A CROSSWALK WHERE PEOPLE WERE CROSSING THE ROAD. THE CAR STOPPED IN TIME, BUT THIS COULD HAVE EASILY TURNED TRAGIC. TOYOTA HAS SAID NOTHING ABOUT THIS AND DON'T THINK THERE IS ANYTHING WRONG WITH THE CAR. *TR

Service Brakes, Hydraulic
Filed Feb 4, 2010CA

PRIUS 2010 SLOW BRAKING. I THOUGHT IT WAS JUST ME BUT NOW I FOUND OUT THE BRAKING IS RATHER SLOW AND A LOT OF OTHERS FEEL THE SAME WAY. I HAVE TO ADJUST MY BRAKING WHEN I SWITCH CARS WITH MY WIFE AND HAVE TO EXTRA CAREFUL WHEN I SWITCH BACK TO PRIUS. *TR

Service Brakes, Hydraulic
Filed Feb 4, 20105,000 milesIL

WHEN BRAKING AT LOWER SPEEDS AND TRAVELING OVER A TRANSITION (MANHOLE COVER, PAVEMENT BREAK), THE CAR WILL ACT AS THOUGH THE BRAKES LOSE GRIP FOR A SECOND, THEN REGAIN STOPPING POWER. I HAVEN'T HIT ANYTHING, BUT IT'S BEEN UNSETTLING. *TR

Service Brakes, Hydraulic
Filed Feb 4, 20105,000 milesNY

WE HAVE BEEN EXPERIENCING, INTERMITTENTLY, THE EXACT PROBLEM DESCRIBED IN RECENT NEWS ACCOUNTS ABOUT THE MOMENTARY FAILURE OF ANTI-LOCK BRAKES ON THE 2010 TOYOTA PRIUS. WHEN BRAKING ON A ROUGH OR SLICK SURFACE, SUCH AS THERMOPLASTIC LANE OR CROSSWALK MARKINGS, THE CAR FEELS LIKE IT'S SURGING FORWARD. WE BELIEVE IT IS NOT SO MUCH AN ACTUAL SURGING AS IT IS THE MOMENTARY ABSENCE OF LOSS OF BRAKING, BUT IT FEELS LIKE THE CAR IS A BIT OUT OF CONTROL, AND POTENTIALLY DANGEROUS. WE HAVE EXPERIENCED THIS MOMENTARY BRAKE FAILURE ON PERHAPS A COUPLE DOZEN OCCASIONS. FORTUNATELY, NONE OF THESE INCIDENTS HAVE RESULTED IN A CRASH. WE CONTACTED THE DEALERSHIP TO LET THEM KNOW THAT WE HAD BEEN EXPERIENCING THE SAME ISSUE DESCRIBED IN NEWS REPORTS, AND WERE TOLD THAT THEY HAVE NOT YET RECEIVED INSTRUCTIONS FROM TOYOTA ABOUT A RECALL OR POTENTIAL FIX. *TR

Service Brakes, Electric
Filed Feb 4, 201015,000 milesVT

TOYOTA PRIUS 2010: DRIVING OVER SEWER GRATE WHILE BRAKING AND CAR LOSES MOMENTARY GRIP AND SLIDES OVER SURFACE WITHOUT SLOWING DOWN, EVEN THOUGH BRAKING. HAS HAPPENED SEVERAL TIMES ON THE SAME LOCATION / SEWER GRATE. *TR

Service Brakes, Electric
Filed Feb 4, 2010500 milesCA

RE: 2010 PRIUS BRAKING ISSUES BEGINNING WITHIN THE FIRST 500 MILES OF OWNING VEHICLE. WHEN FIRST START UP VEHICLE BRAKES ARE OVERLY SENSITIVE, MAKING IT IMPOSSIBLE TO STOP THE CAR SMOOTHLY. I HAVE BEEN ABLE TO CORRECT THE PROBLEM BY SHUTTING OFF THE ENGINE AND RESTARTING THE CAR. THIS PROBLEM OCCURS RANDOMLY AND HAS OCCURRED TWICE WITHIN THE LAST WEEK. I HAVE ALSO HAD TWO TIMES WHERE THE CAR HAS HAD AN INCREDIBLE SURGE FORWARD, SO STRONG THAT MY HEAD WAS THROWN BACK INTO THE HEAD REST. THE SURGE HAS BEEN MOMENTARY AND HAS THE FEELING LIKE GOING UP A STEEP INCLINE ON A ROLLER COASTER WHEN IT FIRST ACCELERATES. BECAUSE THESE EVENTS WERE SUCH A SURPRISE AND SO SHORT IN DURATION I CANNOT RECALL THE CONDITIONS (WHETHER I WAS BRAKING, COASTING, OR ON THE GAS PEDAL) BUT I DO KNOW I WAS GOING AT A SLOW SPEED. I HAVE HAD TWO OCCURRENCES OF THIS SURGE BOTH WITHIN WEEKS OF EACH OTHER IN THE FALL OF LAST YEAR. I TOOK MY CAR INTO THE DEALER REGARDING BOTH OF THE ABOVE ISSUES IN THE FALL OF LAST YEAR, BUT THEY COULD NOT GET THE CAR CREATE EITHER OF THE ABOVE PROBLEMS. AT THAT TIME I ASKED IF THEY HAD ANY SIMILAR COMPLAINTS AND THEY SAID THEY HAD HEARD OF NO OTHER SUCH COMPLAINTS. WHEN THE CAR WAS TAKEN IN TO THE DEALER FOR ROUTINE SERVICE IN NOVEMBER MY HUSBAND AGAIN ASKED ABOUT THE OVERSENSITIVE BRAKING ISSUE AND AGAIN NO PROBLEM WAS FOUND OR SOLUTION PROVIDED. THE OVERSENSITIVE BRAKE AND THE SURGE CREATE PHYSICALLY AND EMOTIONALLY UNCOMFORTABLE CONDITIONS. NO DAMAGE HAS OCCURRED BECAUSE

Service Brakes, Electric
Filed Feb 4, 20108,800 milesCO

WHEN TRYING TO BRAKE ON ICE, THE CAR JERKS FORWARD. IT HAPPENED SEVERAL TIMES BEFORE JAN. 28TH, AS WELL. TODAY (FEB. 04, 2010) ... BRAKING ON BUMPY ROAD WITH SLIGHT SINK HOLE BEFORE RAILROAD TRACKS AND IT JERKED FORWARD ... NO TRAIN ON THE TRACK AND NO CAR IN FRONT OF ME, SO I WAS FORTUNATE NOT TO HAVE A SERIOUS ACCIDENT WITH MY GRANDSON IN THE CAR. I HAVE INFORMED BOULDER TOYOTA. *TR

Traction Control System
Filed Feb 4, 20101 milesCA

I HAVE A 2010 PRIUS AND HAD A 2005 PRIUS WITH ALL THE SAFETY FEATURES. WHEN I HAD THE 2005 PRIUS, I NOTICED ON SOME ROADS THAT DURING BRAKING, THE BRAKES WOULD RELEASE THEN REENGAGE, GIVING THE SENSATION THAT THE CAR IS ACCELERATING. THIS HAPPENS WHEN THE ROAD HAS A SERIES OF DIPS (WASHBOARD). THE FIRST COUPLE TIMES THIS HAPPENED, IT WAS RATHER FRIGHTENING BECAUSE THE CAR IN FRONT OF ME HAD STOPPED, AND I FELT AS IF I WERE ACCELERATING. THIS IS A REPRODUCIBLE EVENT THAT OCCURS AT A KNOWN LOCATION THAT I SIMPLY AVOID. THE ROAD IN THIS PARTICULAR AREA IS ALSO DOWN SLOPE, WHICH LENDS TO THE ACCELERATION FEELING. I HAVE DRIVEN MY 2010 PRIUS OVER THIS SAME AREA WITH VERY MUCH THE SAME RESULT. MY INITIAL ASSESSMENT WAS THAT THE TRACTION CONTROL TOOK OVER TO REGAIN TRACTION, HOWEVER I WOULD NOT THING THIS IS ACCEPTABLE. THE TOYOTA DEALERSHIP SAID THIS IS NORMAL BEHAVIOR AND IS NOT A PROBLEM. PLEASE FEEL FREE TO CONTACT ME AND I CAN DESCRIBE BETTER THE CONDITIONS FOR THIS VERY REPRODUCIBLE EVENT. *TR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20108,400 milesIL

TL*THE CONTACT OWNS A 2010 TOYOTA PRIUS. SHE STATED THAT WHILE APPLYING THE BRAKES AT ANY SPEED MORE THAN 5 MPH AND OVER A POTHOLE THE VEHICLE RESPONDED AS IF THE BRAKES HAD FAILED AND IT ATTEMPTED TO ACCELERATE. WITHIN SECONDS, THE BRAKES WOULD RESET AND FUNCTION NORMALLY. THE MANUFACTURER NOR THE DEALER WERE NOTIFIED. THERE WERE NO RELATED RECALLS. THE FAILURE AND CURRENT MILEAGES WERE 8,400.

Service Brakes, Electric
Filed Feb 4, 20108,000 milesAR

2010 PRIUS FEELS LIKE BRAKES NOT WORKING BUMPY OR ROUGH ROAD, ALSO BRAKES GRAB REAL BAD WHEN BACKING UP SOME TIMES. NOTHING HAS BEEN DONE TO FIX IT. *TR

Service Brakes, Hydraulic
Filed Feb 4, 20104,000 milesCA

I'VE BEEN MONITORING THE TOYOTA RECALL NEWS BECAUSE I HAVE EXPERIENCED SIMILAR BRAKING ISSUES WITH MY NEW 2010 PRIUS. THE BEST WAY I CAN DESCRIBE IT IS AS IF THE BRAKING SYSTEM "HICCUPS" WHEN THE BRAKE IS APPLIED WHILE TRAVELING OVER AN UNEVEN ROAD SURFACE. AS THIS WAS A NEW VEHICLE TYPE THAT I HAD NEVER DRIVEN BEFORE I THOUGHT IT WAS INHERENT. *TR

Service Brakes, Hydraulic
Filed Feb 4, 20101,500 milesCA

MY 2010 PRIUS WHICH WAS PURCHASED IN AUGUST OF 2009 ON SEVERAL OCCASIONS WHEN BRAKING ON ROUGH SURFACE OR POTHOLE SLIPS MOMENTARILY. *TR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20108,000 milesCA

TL*THE CONTACT OWNS A 2010 TOYOTA PRIUS. WHILE DRIVING 25 MPH OVER UNEVEN PAVEMENT THE VEHICLE BECAME DIFFICULT STOP WHILE ENGAGING THE BRAKE PEDAL. THE VEHICLE ALSO ACCELERATED INTERMITTENTLY. THE CONTACT HAS INFORMED A LOCAL DEALER ABOUT THE FAILURE WHO STATED THAT TOYOTA HAS NOT ISSUED A RECALL. THE CONTACT IS CONCERNED THAT THE BRAKE FAILURE COULD POTENTIALLY CAUSE A CRASH TO OCCUR. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE 8,000.

Service Brakes, Hydraulic
Filed Feb 4, 20106,300 milesMD

2010 PRIUS: BRAKES HAD MOMENTARY FAILURE ON A SNOW-COVERED SPEED BUMP. VEHICLE SPEED WAS ABOUT 10 MPH. THIS WAS THE FIRST OF SEVERAL INCIDENTS. *TR

Service Brakes, Electric
Filed Feb 4, 2010FL

REGARDING MY 2010 TOYOTA PRIUS: BRAKES DID NOT ENGAGE. IT WAS RAINING; I WAS SLOWING TO MAKE A RIGHT TURN INTO A PARKING LOT AND MERGED INTO THE TURN LANE, APPLIED THE BRAKES JUST PRIOR TO DRIVING OVER A DRAINAGE GRATE, AND CAR'S BRAKES DID NOT RESPOND. I RELEASED MY FOOT FROM THE BRAKE PEDAL AND THEN RE-ENGAGED IT, WHEREAS THE BRAKES RESPONDED. INCIDENTS VERY SIMILAR TO THIS HAPPENED TWO PRIOR TIMES WHEN BACKING OUT OF MY DRIVEWAY (NOT RAINING). THE BRAKE WARNING LIGHT ALSO GOES ON UNEXPECTEDLY WHILE IDLING AT A TRAFFIC LIGHT OR WHEN COASTING TO A STOP (NOT STOPPING SUDDENLY). WHEN THIS HAPPENS, I HAVE TO PLACE THE CAR INTO PARK AND THEN BACK INTO DRIVE. I INQUIRED ABOUT THESE ISSUES WITH THE TOYOTA DEALER AND HAVE BEEN ADVISED THAT THEY HAVE HAD NO COMPLAINTS OF THIS NATURE WITH THEIR 2010 PRIUSES. *TR

Service Brakes, Electric
Filed Feb 4, 20103,000 milesOH

I BOUGHT A 2010 TOYOTA PRIUS IN AUGUST 2009. AFTER HEARING ON THE RADIO AND TV THIS WEEK ABOUT OTHER BUYERS EXPERIENCING THE SAME BRAKING ISSUE I HAVE BEEN OCCASIONALLY EXPERIENCING, I DECIDED TO LET YOU KNOW IT'S HAPPENING TO ME TOO. NAMELY, THERE IS A MOMENT WHEN I AM BRAKING AT A SPEED OF ABOUT 15-25 MPH, IN PREPARATION TO SLOW DOWN FOR A RIGHT TURN AT ONE PARTICULAR INTERSECTION--IT HAS A LARGE POTHOLE. IF I ROLL OVER THE POTHOLE WITH MY FRONT RIGHT TIRE, THE CAR SEEMS TO SPEED UP FOR A FEW SECONDS--INSTEAD OF SLOWING DOWN--AND THERE IS NOTHING THAT APPLYING MORE BRAKE PRESSURE CAN DO. SOMETIMES I'VE NOTICED THIS KIND OF PROBLEM WHEN TRYING TO SLOW DOWN ON A PATCH OF BLACK ICE, BUT THAT SEEMS TYPICAL OF THE DIFFICULTY OF BRAKING ON BLACK ICE. THE POTHOLE ISSUE HAPPENS INVARIABLY AT THAT PARTICULAR POTHOLE, SO I HAVE HAD TO SWERVE TO AVOID ROLLING OVER IT. THERE ARE OTHER POTHOLES THAT I'VE NOTICED CAN CAUSE ME THIS PROBLEM, BUT NONE WITH SUCH FREQUENCY AS THAT. THE GROUND IS LEVEL THERE, SO IT'S NOT A DOWNHILL PROBLEM. *TR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010200 milesCA

TL*THE CONTACT OWNS A 2010 TOYOTA PRIUS. THE CONTACT STATED THAT WHILE DRIVING 20 MPH WHILE DRIVING OVER POTHOLE WITH HIS FOOT ON THE BRAKE PEDAL WHEN THE VEHICLE ACCELERATED ON IT OWN. THIS FAILURE OCCURRED 5 TIMES AND HAS CONTINUED TO OCCUR EVERY TWO WEEKS. THE DEALER CONFIRMED THAT THE ABS SYSTEM CAUSED THE FAILURE TO OCCUR. NO REPAIRS WERE MADE TO THE VEHICLE. THE VEHICLE IDENTIFICATION NUMBER WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 200 AND THE CURRENT MILEAGE WAS 900.

Service Brakes, Hydraulic
Filed Feb 4, 20102,010 milesNY

I DROVE OVER A BUMP WHILE BRAKING AND IT FELT LIKE THE CAR WAS SLIDING ON ICE. IT FELT LIKE THERE WERE NO BRAKES. *TR

Service Brakes, Electric
Filed Feb 4, 20104,234 milesSC

2010 TOYOTA PRIUS, PACKAGE 5 HAVE OWNED FOR 6 MONTHS OR SO. WHEN ATTEMPTING TO BRAKE AND GO OVER POT HOLES OR IRREGULAR ROAD, THE BRAKES DISENGAGE AND THE CAR CONTINUES FORWARD FOR A LONGER DISTANCE THAN DESIRED. THIS HAS NOT RESULTED IN AN ACCIDENT BUT A CONCERN. HAS OCCURRED ON SEVERAL OCCASIONS SINCE TAKEN OWNERSHIP IN SEPTEMBER. *TR

Service Brakes, Electric
Filed Feb 4, 20101,000 milesOR

2010 TOYOTA PRIUS EXPERIENCES BRIEF LOSS OF BRAKING WHEN TRAVELING DOWNHILL ON SAME SECTION OF THE ROAD. I'VE EXPERIENCED THIS ABOUT 5 OR 6 TIMES AND IT'S BEEN VERY NOTICEABLE. EVEN WITH FIRM BRAKE PRESSURE, THE VEHICLE SEEMS TO SUDDENLY ACCELERATE FOR A FRACTION OF A SECOND. IT ALWAYS SEEMS TO HAPPEN ON THE EXACT SAME SECTION OF THE ROAD, WHICH IS ON A DOWNHILL GRADE. *TR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/ModuleCrash
Filed Feb 4, 20108,800 milesMO

TL*THE CONTACT OWNS A 2010 TOYOTA PRIUS. WHILE DRIVING 15 MPH IN SNOWY CONDITIONS THE CONTACT APPLIED THE BRAKE PEDAL TO STOP THE VEHICLE AND IT FAILED TO STOP AND PROCEEDED THROUGH THE INTERSECTION AND CRASHED INTO A POLE. NO ONE WAS INJURED DURING THE CRASH. THE CONTACT HAD THE VEHICLE TOWED TO A DEALER TO REPAIR THE FRONT END. THE CONTACT STATED THAT THE BRAKING SYSTEM FAILED AND CAUSED THE VEHICLE TO CRASH. THE FAILURE MILEAGE WAS 8,800.

Service Brakes, Hydraulic
Filed Feb 4, 2010CA

I WAS DRIVING MY 2010 TOYOTA PRIUS DOWN THE ROAD HERE IN BERKELEY, CA, AND APPLIED THE BRAKES AS I WAS HITTING A BUMP IN THE ROAD. THE BRAKES DID NOT WORK. I THEREAFTER LIFTED MY FOOT OFF THE BRAKE AND HIT THEM AGAIN, AT WHICH POINT THE BRAKES WORKED CORRECTLY. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010FL

MY 2010 PRIUS ACCELERATES OVER A BUMPY SURFACE OR POTHOLE, IT SURGES FORWARD, WHEN I BRAKE OVER THESE SURFACES. *JB

Service Brakes, Hydraulic
Filed Feb 4, 20102,000 milesMT

I HAVE A 2010 PRIUS THAT "LURCHES" WHEN I BRAKE. THIS ONLY HAPPENS EVERY ONCE AND A WHILE. I TOOK IT TO THE TOYOTA DEALERSHIP, THEY LOOKED IT OVER AND SAID IT WAS FINE. TO SAY THE LEAST I CONTINUE TO BE VERY CONCERNED. *TR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20101,847 milesCA

THE BRAKES IN MY 2010 TOYOTA PRIUS DO NOT OPERATE PROPERLY. I HAVE HAD THE CAR 3 MONTHS WITH 1847 MILES. OVER THIS TIME I MUST INCREASINGLY PRESS THE BRAKE PEDAL CLOSER TO THE FLOOR TO STOP THE CAR. TODAY IN DRY WEATHER, I NEARLY HIT THE CAR ALMOST 50 YARDS IN FRONT OF ME WHEN IT STOPPED AND ALTHOUGH I PRESSED THE PEDAL FIRMLY IT TOOK A VERY LONG TIME FOR THE BRAKES TO GRAB. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010100 milesMA

WHEN OUR 2010 PRIUS GOES OVER A BUMP THE BRAKES SEEM TO DISENGAGE AND SPEED FEELS LIKE IT IS INCREASING. ALTHOUHG TODAYS DATE IS ON THE EVENT THIS HAS BEEN AN ONGOING CONCERN SINCE PURCHASING THE VEHICLE LAST YEAR. *JB

Service Brakes, Electric
Filed Feb 4, 20101,000 milesOR

ON MY PRIUS 2010 (THAT I BOUGHT IN JULY 2009) I NOTICED THAT WHEN I HIT A POTHOLE, AND HAD THE BRAKES PRESSED; THE CAR QUICKLY ACCELERATED FOR A SPLIT SECOND. THIS HAS HAPPENED TWICE. *TR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20103,000 milesWA

MY HUSBAND AND I HAVE BOTH EXPERIENCED THE BRAKING ISSUE FOR THE 2010 PRIUS. WHEN WE COMPARED NOTES, WE FOUND THAT WE LOSE CONTROL OF THE BRAKES WHEN WE DRIVE OVER A SMALL MANHOLE COVER NEAR OUR HOUSE. I HAVE ALSO EXPERIENCED THIS WHEN DRIVING/BRAKING OVER A POTHOLE. INITIALLY WE THOUGHT WE WERE EXPERIENCING THE "SLIPPING" MOTION BECAUSE OF UNFAMILIARITY OF NEW CAR BRAKES. *JB

Service Brakes, Hydraulic
Filed Feb 4, 2010900 milesMA

TOYOTA PRIUS 4TH GENERATION PURCHASED ONE MONTH AGO. SURGES FORWARD WITH BRAKE DEPRESSED WHEN GOING OVER POTHOLES. *TR

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20103,000 milesNH

I WANT TO REPORT A MOMENTARY BRAKE FAILURE OF 2010 PRIUS OVER UNEVEN ROADS 2 MONTHS AGO. I DIDN'T REPORT IT EARLIER BECAUSE I DIDN'T KNOW IF IT WAS A ONE-OFF OR SYSTEMATIC ISSUE. TWO MONTHS AGO, I WAS DRIVING A NEWLY OWNED PRIUS WITH HARDLY 4000 MILES ON IT OVER A STRETCH OF RT. 93 FROM ANDOVER TO BOSTON. I WAS TRAVELING AT ABOUT 65 - 70 MPH ON THE LEFT FASTEST LANE. I CAM ACROSS A BUMPY PATCH, PROBABLY THE ROAD WAS BEING REPAIRED, AND IT WAS NOT LATE FOR ME TO SLOW DOWN AS I DIDN'T EXPECT SUCH UNEVENNESS ON A MAJOR HIGHWAY. I STEPPED ON THE BRAKE WHILE THE CAR WAS BEING TOSSED UP AND DOWN BY THE BUMPS AND I IMMEDIATELY FELT THAT THE CAR LOST BRAKING. LUCKILY, THERE WAS NO CAR AHEAD OF ME AND THE BRAKING DID RECOVER AFTER THE CAR SETTLED DOWN. I OWNED 4 TOYOTA'S FROM SUV TO THE HYBRID AND PRIUS IS THE ONLY ONE THAT HAS THIS PROBLEM. I JUST WANT TO SUPPORT OTHER PEOPLE'S COMPLAINTS ABOUT THIS CAR. I MUST SAY THAT THE BRAKING DID RECOVER QUICKLY THAT A COLLISION WAS NOT LIKELY UNLESS SOMEONE DRIVE THE CAR VERY FAST ON AN UNEVEN ROAD THAT IS ALSO CROWDED. HOWEVER, A CAR SHOULD NOT BEHAVE LIKE THIS UNDER ANY CONDITIONS. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20107 milesNY

TL*THE CONTACT OWNS A 2010 TOYOTA PRIUS. WHILE DRIVING 15 MPH AND ENGAGING THE BRAKE PEDAL THE VEHICLE FAILED TO STOP IMMEDIATELY. OCCASIONALLY, THE VEHICLE ALSO RESPONDED AS IF IT WERE HYDROPLANING ON NORMAL ROAD CONDITIONS AND WITHIN MOMENTS, THE BRAKES WOULD RESET. THE DEALER STATED THAT THE VEHICLE WAS EQUIPPED WITH AN ABS. THE FAILURE WAS A NORMAL OCCURRENCE FOR THE VEHICLE. THERE WERE NO RECALLS. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 7 AND THE CURRENT MILEAGE WAS 3500.

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010650 milesIL

EMERGENCY BRAKING DELAY IN BRAKE ACTION. WHEN THE VEHICLE AHEAD OF ME IMMEDIATELY HARD-BRAKED ON A YELLOW STOP LIGHT AT A "RED LIGHT" CAMERA MONITORED INTERSECTION (WESTBOUND ILLINOIS 38 AT SUMMIT IN VILLA PARK, IL) I HAD TO BRAKE HARD AND MANEUVER TO AVOID REAR-ENDING HIM. THIS WAS THE FIRST, AND ONLY, EMERGENCY STOP SITUATION I HAVE HAD WITH MY 2010 TOYOTA PRIUS. WE WERE TRAVELLING JUST A BIT BELOW THE POSTED 35 MPH LIMIT, AND I WAS FOLLOWING AT AN APPROPRIATE INTERVAL (3+ SECONDS OR ABOUT 3 CAR LENGTHS). THERE WAS ABOUT A 1 SECOND DELAY BETWEEN JAMMING ON THE BRAKE AND SIGNIFICANT BRAKING ACTION. I NEVER EXPERIENCED SUCH A DELAY IN MY ABS EQUIPPED 2000 CHEVROLET MONTE CARLO SS OR MY 1995 FORD WINDSTAR LX, SINCE THIS EXPERIENCE I DRIVE THE PRIUS WITH A GREATER INTERVAL, ALTHOUGH THIS MEANS OTHER DRIVERS REGULARLY MERGE INTO THE "SAFETY" GAP THAT I AM TRYING TO PROVIDE. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010400 milesNJ

I WAS DRIVING MY 2010 TOYOTA PRIUS (WHICH I'D TAKEN DELIVERY ON ABOUT JANUARY 6), AND I NOTICED WHAT SEEMED TO BE A POWER SURGE OR A MOMENTARY BRAKE FAILURE WHEN I WENT OVER A POTHOLE WHILE I WAS SLOWING DOWN AFTER EXITING A HIGHWAY. THE CAR SEEMED TO LURCH FORWARD, SO THAT I HAD TO TAKE MY FOOT OFF THE BRAKE AND RE-APPLY IT. THIS HAPPENED FIRST ON JANUARY 20, BUT HAS OCCURRED THREE TIMES SINCE THEN. I'VE BEEN TRYING TO FIGURE OUT WHAT IT WAS; AT FIRST I THOUGHT IT WAS A POWER SURGE. BUT WHEN I SAW THE ARTICLE IN THE NEW YORK TIMES ON FEBRUARY 3, I KNEW THAT WAS EXACTLY WHAT HAD HAPPENED TO ME. EVERY TIME IT'S HAPPENED AS I WAS BRAKING OVER A SPEED BUMP OR POTHOLE. I HAVE MADE AN APPOINTMENT WITH MY TOYOTA DEALER BUT HAVE NOT GONE YET. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010CA

TOYOTA PRIUS 2010 BRAKES WHILE ON REVERSE GEAR SUDDENLY BECOMES TOO SENSITIVE AND BRINGS THE VEHICLE TO COMPLETE HALT EVEN ON THE SLIGHTEST APPLICATION OF BRAKE AND WHEN RELEASED THE VEHICLE ACCELERATES VERY FAST AND THERE BY NEEDING TO HIT BRAKES AGAIN WHICH JOLTS THE CAR BACK TO HALT. THOUGH IT HAPPENS ONLY ON REVERSE IT MAKES THE CAR HIGHLY UNPREDICTABLE WHILE BACKING UP. TOYOTA DEALERS SEEM TO IGNORE THIS COMPLAINT WHEN TAKEN FOR SERVICING AND HENCE REPORTING ON THIS PORTAL. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20101,500 milesNY

PRIUS 2010. 1. WHEN STOPPING AND ONE OF MY FRONT TIRES GOES OVER A POTHOLE, STICK, OR ANY OTHER MARKEDLY UNEVEN PAVEMENT, THE BRAKES RELEASE PROPELLING THE CAR FORWARD. 2. I NOTICE MOST WHEN I AM GOING DOWN HILL. SO FAR IT HAS ONLY HAPPENED WHEN I AM GOING SLOWLY AND BRAKING HARD ENOUGH TO STOP THE CAR. IT HAS NOT HAPPENED AT HIGHER SPEEDS IN TRAFFIC WHEN I AM MERELY SLOWING DOWN IN TRAFFIC. 3. I BROUGHT IT TO THE ATTENTION OF THE SERVICE DEPARTMENT AT THE LOCAL TOYOTA DEALER. I WAS TOLD THAT IT IS THE WAY THE BRAKES ARE SUPPOSED TO OPERATE. I POINTED OUT THAT I HAVE OWNED 11 CARS OVER THE YEARS AND RENTED FAR MORE AND NEVER EXPERIENCED THIS BEFORE. THE COMPLAINT FELL ON DEAD EARS. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20101,000 milesWA

I WAS GOING DOWN A FAIRLY STEEP HILL, APPLYING MY BRAKES EVENLY AS I APPROACHED A STOP LIGHT. THERE WERE NO CARS IN FRONT OF ME, AND THE ROAD WAS DRY. SUDDENLY, I THOUGHT THAT I HAD BEEN STRUCK FROM BEHIND BECAUSE MY CAR LURCHED FORWARD (AS THOUGH I HAD BEEN STRUCK). MY 2010 PRIUS WAS ONLY ABOUT TWO MONTHS OLD AT THIS POINT. THE BRAKES RE-ENGAGED AFTER A SECOND OR TWO, BUT I WAS AFRAID THAT I WOULD HAVE HIT SOMEONE IF I HADN'T BEEN ALONE ON THE ROAD. THE SAME THING HAPPENED WHEN GOING DOWN ANOTHER STEEP ROAD ABOUT THREE WEEKS LATER. AGAIN, THERE WAS NO PROPERTY DAMAGE AND NO ONE WAS HURT. BUT I WAS STARTLED. I DO NOT KNOW IF THE ROAD WAS UNEVEN OR IF THERE WERE POTHOLES. I HAVE NOT REPORTED THESE INCIDENTS TO THE DEALER, THE CAR COMPANY OR THE POLICE BECAUSE (ALTHOUGH THEY SCARED ME), I DID NOT THINK MUCH ABOUT THEM. NOW THAT I KNOW THAT OTHERS HAVE EXPERIENCED THIS, I HAVE BECOME FAIRLY WORRIED. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010MD

MY 2010 TOYOTA PRIUS HAS THE SAME PROBLEM THAT ARE LISTED ON THIS SITE WITH BRAKES. WHEN TRYING TO STOP IMMEDIATELY AFTER A BUMP OR POTHOLE AND DURING MINOR SLICK CONDITION THE BRAKES DON'T REACT IMMEDIATELY. A COUPLE OF WEEKS AGO I SLID INTO AN INTERSECTION WITH MY BRAKES FULLY ENGAGED BEFORE THE BRAKES KICKED IN. THANK GOD NO CAR WAS IN FRONT OF ME. THE CAR BEHIND ME SAW WHAT WAS HAPPENING AND SLOWED DOWN. THIS BRAKE PROBLEM OCCURS WEEKLY SINCE MY PURCHASE OF THE VEHICLE IN SEPTEMBER 2009. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20108,900 milesCA

2010 PRIUS SURGES FORWARD WHEN I HIT A BUMP WITH THE BRAKE PEDAL DEPRESSED. I HAVE HAD A FEW NEAR MISSES BUT NO ACCIDENTS TO THIS POINT. LAST OCCURRED YESTERDAY. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20101,050 milesIL

I WAS BRAKING MY 2010 PRIUS III WHEN I WENT OVER SOME RAILROAD TRACKS. THE VEHICLE SUDDENLY ACCELERATED AND I HAD TO STEP OFF THE BRAKE PEDAL AND RE-APPLY THE BRAKES TO GET THE VEHICLE TO BEGIN BRAKING AGAIN. THE ACCELERATION LASTED FOR MORE THAN 1 SECOND AND THE VEHICLE DIDN'T START BRAKING AGAIN, UNTIL I HAD REAPPLIED THE BRAKES. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010NY

TOYOTA PRIUS BRAKE LOSS OF CONTROL - WHEN THE VEHICLE GOES OVER A BUMP (E.G. POTHOLE, MANHOLE) WHEN THE BRAKE IS BEING APPLIED, IT DOESN'T IMMEDIATELY STOP BUT INSTEAD SEEMS TO LURCH FORWARD WITH THE SENSATION OF LOSS OF CONTROL. THIS ESPECIALLY HAPPENS ON CITY STREETS OR IN ICY CONDITIONS. IF THERE WAS A PERSON OR CAR IN FRONT OF THE VEHICLE, THE PRIUS WOULD HAVE HIT THE PERSON/CAR. THIS HAPPENS EVERY DAY AT THE SAME STOP (BUMP IN ROAD WHEN TURNING), AS WELL AS RANDOM PLACES AT LEAST WEEKLY SINCE PURCHASING THE CAR IN SEPTEMBER 2009. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20106,000 milesME

I BOUGHT A 2010 PRIUS IN OCTOBER. I LIVE IN MAINE WHERE WINTER DRIVING CONDITIONS ARE NOT GREAT. I HAVE HAD THREE INCIDENTS NOW OF DRIVING AT A LOW SPEED ON PLOWED BUT SNOWY ROADS WHERE THE BRAKES DID NOT CATCH WHEN I APPLIED THEM. ONCE WAS GOING AROUND A DOWNHILL CURVE WHICH WAS SCARY. EACH TIME THEY EVENTUALLY CATCH BUT NOT UNTIL I HAVE SKIDDED FOR ABOUT 3-6 FT. FORTUNATELY, I HAVE NOT HIT ANYONE YET. I CALLED MY DEALER YESTERDAY AND WAS TOLD THERE HAD NOT BEEN A RECALL AND THERE WAS NOTHING TO BE DONE ABOUT IT YET. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20105,159 milesNJ

MY 2010 PRIUS LURCHES WHEN I GO OVER POT HOLES OR ROUGH PATCHES. I CAN CONTROL THE LURCH, BUT IT DOES NOT FEEL RIGHT. IT DOES NOT HAPPEN ALL THE TIME. I AM NOT SURE WHAT MAKES THE DIFFERENCE BETWEEN IT HAPPENING AND NOT HAPPENING. I RECEIVED THE TITLE TO THE CAR IN 8/27/09. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010500 milesIN

I OWN A 2010 TOYOTA PRIUS AND AM EXPERIENCING THE EXACT PROBLEM THAT WAS JUST ANNOUNCED ABOUT THE BRAKES. WHEN I BRAKE OVER A BUMPY SURFACE THE BRAKES GO ALMOST TO THE FLOOR BEFORE I AM ABLE TO STOP. ALSO HAPPENS ON SNOWY/ICY SURFACES. I HAD TOYOTA LOOK AT MY BRAKES ON 10/27/09 AT TOYOTA SCION OF OAK LAWN, IL. I WAS TOLD BY THEM THAT MY BRAKES CHECKED OUT FINE. *JB

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20104,400 milesFL

BRAKE FAILURE ON OUR 2010 PRIUS. *JB UPDATED 02/17/10 *BF THE CONSUMER ALSO STATED HE EXPERIENCED SUDDEN ACCELERATION. UPDATED 03/05/10

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 2010CA

MY 2010 PRIUS ACCELERATES OVER BUMPY ROAD CONDITIONS IRRESPECTIVE OF WHETHER OR NOT MY FOOT IS ON THE BRAKE OR NOT ON ANYTHING AT ALL.

Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Filed Feb 4, 20102,000 milesCA

I OWN A 2010 PRIUS, PURCHASED 7/22/09. I HAVE EXPERIENCED A SUDDEN SURGE WHEN TRAVELING OVER A BUMP OR LARGE POTHOLE. THE CAR MOMENTARILY SURGES AND FEELS SLIGHTLY OUT OF CONTROL. THIS HAS HAPPENED ABOUT A DOZEN TIMES IN THE 6 MONTHS I HAVE OWNED THE VEHICLE. I AM CONCERNED ABOUT MY SAFETY AND THIS IS WHY I AM WRITING TO YOU. *JB

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NHTSA publishes every complaint as the owner wrote it and investigates only a fraction. Spelling, capitalisation and judgement are the filer’s own. What carries weight is repetition: the same component failing the same way across many filings, and whether the manufacturer eventually opened a recall for it.

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