2010 Toyota Prius SERVICE BRAKES, ELECTRIC

ANTI LOCK BRAKES DO NOT WORK PROPERLY CAR JUMPS WHEN HITTING AN UNEVEN ROADWAY WHEN APPLING BRAKES. *TR

I PURCHASED A 2010 TOYOTA PRIUS IN SEPTEMBER OF 2009. THREE TIMES I HAVE EXPERIENCED ISSUES WITH SUDDEN ACCELERATION AFTER BRAKING ON A ROUGH SURFACE. TWO WERE IN THE SAME AREA WHERE I WAS SLOWING TO TURN INTO A BUSINESS AND WHILE BRAKING I HIT SEVERAL SMALL POT HOLES IN THE ROAD. AS SOON AS I HIT THE POTHOLES I HAD A SUDDEN BRIEF ACCELERATION WHERE MY BRAKES DID NOT SEEM TO WORK. IN A SHORT TIME THE BRAKES SEEM TO TAKE HOLD. SINCE THERE HAS BEEN THE RECALL AND ISSUES WITH ACCELERATING WITH THE CRUISE CONTROL MY CAR HAS BEEN PARKED. I HAVE AN APPOINTMENT TO HAVE THE VEHICLE LOOKED AT ON THURSDAY, BUT I HAVE NOT RECEIVED A RECALL NOTICE. *TR

I OWN A 2010 TOYOTA PRIUS. I HAVE EXPERIENCED SOME DANGEROUS OCCURRENCES WHILE DRIVING. 1) OCCASIONAL LOSS OF TRACTION (FOR A SECOND+-). PROBLEM HAS OCCURRED AUG, 2009 - PRESENT. USUALLY OCCURS WHEN HEADING DOWNHILL OR WHEN DRIVING OVER A MANHOLE OR DRAINAGE COVER. CAR FEELS AS IF SLIPPING OR AIRBORNE FOR A MOMENT.. 2) FREQUENTLY IMMEDIATELY AFTER STARTING CAR, AT SLOW SPEEDS OF ONLY 0-5 MPH, CAR IS JERKY EACH TIME BRAKE IS APPLIED. PROBLEM HAS OCCURRED AUG, 2009 - PRESENT. PASSENGERS ARE ACTUALLY JERKED, AS IF DRIVER WAS APPLYING BRAKES TOO SUDDENLY. EVEN WITH GREAT ATTEMPT TO STOP SMOOTHLY AND GRADUALLY, IT IS IMPOSSIBLE. BRAKES GRAB AND JERK. THIS OCCURS BOTH IN REVERSE AND FORWARD, YET NOT EVERY TIME ENGINE IS STARTED. IT LASTS FOR ONLY A MINUTE OR SO, BUT MAKES MANEUVERING WHILE PARKING OR ENTERING TRAFFIC UNSAFE, AS WELL AS MAKING DRIVER LOOK INEPT. I CANNOT FIGURE OUT IF THIS IS A BRAKING OR ACCELERATION PROBLEM. WHEN CALLING A TOYOTA DEALER (NOV, 2009), I WAS TOLD THEY HAD NO SIMILAR REPORTS OF THESE PROBLEMS AND OFFERED NO SOLUTION. MY CONCERN HAS INCREASED WITH THE RECENT RECALLS WHEN CALLING A TOYOTA DEALER PREVIOUSLY, I WAS TOLD THEY HAD NO SIMILAR REPORTS OF THESE PROBLEMS. MY CONCERN HAS INCREASED WITH THE RECENT RECALLS. *TR

TWICE MY 2010 PRIUS HAD A DELAY WHEN APPLYING THE BRAKES. MOMENTARILY I THOUGHT I HAD A BRAKING FAILURE. *TR

BRAKE FAILURE ON 2010 TOYOTA PRIUS. WHEN GOING OVER A TRAFFIC BUMP ON A RAINY DAY, THE BRAKE FAILED FOR ABOUT 1-2 SECONDS BEFORE I WAS ABLE TO BRING IT TO A STOP AT THE TRAFFIC. THERE WAS NO ACCIDENT, NO PROPERTY DAMAGE. *TR

I HAVE A 2010 TOYOTA PRIUS. I NOTICED THAT WHEN HEADING DOWNHILL ON A ROAD WITH MANY BUMPS, PAYMENT IRREGULARITIES, ETC. THAT THE BRAKING WOULD TOTAL FAIL FOR ABOUT 1/2 A SECOND. I WAS ALWAYS CAREFUL ON THIS TYPE OF ROAD TO REDUCE SPEED EARLIER TO COMPENSATE. I HAD THE RECALL REPROGRAMMING PERFORMED ON 2/12/2010. *TR

HIT A POT HOLE WHILE USING BRAKES AND CAR LUNGED FORWARD. *TR

BRAKING FOR UPCOMING TRAFFIC LIGHT AND WHEN WENT OVER A ROUGH SPOT IN ROAD, BRAKES TEMPORARILY FAILED. *TR

DESPITE THE COMPUTER UPDATE FOLLOWING THE RECALL MY 2010 TOYOTA PRIUS CONTINUES TO HAVE BRAKING PROBLEMS. SINCE THE UPDATE THE CAR ACCELERATES SLIGHTLY WHEN AN UNEVEN ROAD SURFACE IS ENCOUNTERED WHILE BRAKING. TOYOTA SAYS THIS IS NORMAL OPERATION. *TR

WHEN ATTEMPTING TO STOP OUR 2010 TOYOTA PRIUS, THE CAR LURCHED FORWARD, AND CONTINUED TO MOVE. I LET OFF THE BRAKE PEDAL, AND REAPPLIED THE BRAKES, BUT THEY DID NOTHING FOR ABOUT 30 SECONDS - AT WHICH POINT THE CAR STOPPED. AFTER CONTACTING BOTH OUR TOYOTA DEALERSHIP, AND THE TOYOTA CUSTOMER SERVICE DEPARTMENT, THEY WILL NOT LOOK AT THE CAR UNTIL NEXT WEEK. *TR

I OWN A 2010 TOYOTA PRIUS AND HAVE HAD MY CAR IN FOR SERVICE TO ADDRESS THE BRAKE RECALL. HOWEVER, TODAY I DROVE OVER A POTHOLE AND THE SYMPTOM OF THE RECALL (LOSS OF BRAKING POWER) OCCURRED. THIS HAS HAPPENED ONE OTHER TIME IN THE PAST FEW DAYS SINCE I HAVE BROUGHT MY CAR IN FOR THE RECALL SERVICE. THE SERVICE APPEARS NOT TO HAVE ADDRESSED THE PROBLEM. *TR

WHEN THE CAR IS MODERATELY BRAKING (SO CALLED REGENERATIVE BRAKING) AND EITHER (OR BOTH) OF THE REAR WHEELS HITS ROUGH PAVEMENT (POT HOLES, METAL PLATES COVERING ROAD, ROUGH RAIL-ROAD CROSSINGS) THE CAR CEASES TO BREAK AND THE CAR ACTUALLY ACCELERATES (THE ACTUAL TIME IS ABOUT 1 SECOND OF NO BREAKS AND ACCELERATION). I HAVE HAD THIS HAPPEN 10 TIMES SINCE I BOUGHT THE CAR IN OCT OF 09. IN THE FIRST MONTH THE DEALER TOLD ME THEY HAD NOT HEARD OF THIS. TWO MONTHS AGO (DEC)A MECHANIC TOLD ME THAT THE ELECTRIC ENGINE KICKS IN (WHEN REGENATIVE BREAKING) WHICH DRIVES THE FRONT WHEELS FOR A SMOOTHER BREAKING, SO HE SURMISED THAT IF THE BREAKING WHEELS ARE NOT MAKING CONTACT THE CAR WOULD SPEED UP. ON 1/13/2010 I MET WITH THE HEAD OF SERVICE FOR THE DEALERSHIP. HE TOLD ME THAT THE DEALERSHIP TESTED A PRIUS HOOKING IT UP TO A COMPUTER AND REPRODUCED THE ENVIRONMENT OF THIS COMPLAINT. ALTHOUGH HE ADMITTED THERE WAS A MOMENTARY LACK OF BREAKING WITH THE LOSS OF BACK WHEEL CONTACT WITH THE PAVEMENT HE CLAIMED THERE WAS NO ACCELERATION NOTED. HE ALSO ADMITTED THE TEST WAS DONE AT APPROX. 25MPH. I SUGGESTED HE SHOULD REPEAT THE TEST AT 40-50MPH AS THIS IS WHERE IT IS MOST NOTABLE. TOYOTA'S ONLY SUGGESTION IS TO DRIVE CAREFULLY. THEY KNOW THEY HAVE A PROBLEM BUT THIS IS THERE SOLUTION. I HAVE BEEN CAREFUL BUT ON 1/31/10 I WAS DRIVING AT 45MPH BEGINNING TO DECELERATE AS THE LIGHT AHEAD HAD TURNED RED, AND THE TRUCK INFRONT OF ME HAD TO PANIC STOP AS A CAR CUT INFRONT OF HIM, AT THAT MOMENT MY REAR LEFT WHEEL HIT A POTHOLE SO I WAS NOT ABLE TO BRAKE AND ACTUALLY ACCELERATED TOWARD THE BACK OF THIS TRUCK. WHEN THE BRAKES REENGAGED I ACTUALLY STOPPED 12 INCHES FROM HIS BUMPER. THE CONSEQUENCES OF THIS ARE AN OBVIOUS SAFETY HAZARD WHEN YOU NEED TO STOP UNEXPECTEDLY, YOU MIGHT WELL BE ENDANGERING OTHER DRIVERS AND/OR PEDESTRIANS. *TR

PRIUS 2010 PURCHASED 12/26/2009. WHEN I'M BRAKING DOWNHILL AND HIT A POT-HOLE, I GET A BIG KICK FROM THE CAR. IT FEELS LIKE THE ABS SYSTEM ENGAGES. IT'S HAPPENED A FEW TIMES, AND IS PREDICTABLE IN CERTAIN ROUTES. OVER TIME, I'VE ADJUSTED TO IT AND LEARNED TO APPLY THE BRAKES DIFFERENTLY. I'M ALSO MORE CAREFUL TO AVOID THE POTHOLES. IT'S NOT HAPPENING AS OFTEN NOW. IT'S STARTLING, BUT I'M NOT SURE IT'S DANGEROUS. *TR

TL*THE CONTACT OWNS A 2010 TOYOTA PRIUS. WHILE DRIVING 25 MPH AND ATTEMPTING TO SLOW THE VEHICLE DOWN, IT LUNGED FORWARD. THE WEATHER WAS NOT A FACTOR AND THE FAILURE OCCURRED APPROXIMATELY FOUR TIMES. THE FAILURE HAS NOT BEEN DIAGNOSED BY THE DEALER. THE CONTACT IS CONCERNED THAT THE RISK COULD CAUSE A CRASH TO OCCUR. THE FAILURE MILEAGE WAS 5,000.

BRAKES DID NOT APPEAR TO HOLD CAR WHEN APPLIED AS CAR WENT OVER A BUMP IN THE PAVEMENT. SEEMED LIKE THE CAR BRIEFLY ACCELERATED BUT THEN BRAKING DID RETURN AND SLOWED CAR PROPERLY. MOMENTARY APPARENT LOSS OF BRAKING CONTROL WAS FRIGHTENING. *TR

MY HUSBAND AND I RECENTLY PURCHASED A 2010 TOYOTA PRIUS. WE HAVE NOTICED REPEATED PROBLEMS WITH THE BRAKING SYSTEM. WHENEVER WE GO OVER A POTHOLE WHILE BRAKING, THE CAR SURGES FORWARD. THIS DOES NOT JUST APPEAR TO BE A PROBLEM WITH THE PRESSURE ON THE BRAKE PEDAL; THE PASSENGER CAN FEEL THE SURGE AS WELL. THIS PROBLEM IS QUITE ALARMING. WE ARE TAKING THE CAR TO THE DEALER TODAY TO ADDRESS THIS ISSUE. *TR

WHILE BRAKING WHILE GOING THROUGH SHALLOW WATER AND SMALL POTHOLE, THE BRAKES FELT LIKE THEY SLIPPED. THE CAR STOPPED BRAKING FOR ABOUT A SECOND OR TWO. *TR

ON ROUGH ROADS AND TERRAIN, THE 2010 PRIUS THAT I RECENTLY BOUGHT CONSISTENTLY DISPLAYS DEFECTIVE BEHAVIOR. WHEN I AM TRYING TO BRAKE, AND DURING BRAKING HIT A BUMP (ALWAYS DURING A SLOW BRAKE), THE CAR ACTUALLY SPEEDS UP. THIS HAS RESULTED IN MY CHANGING MY DRIVING HABITS TO BE FURTHER AWAY FROM CARS IN FRONT OF ME, ESPECIALLY ON BUMPY ROADS. HOWEVER, I AM VERY CONCERNED THAT AT SOME POINT I WON'T BE ABLE TO STOP THE VEHICLE PROPERLY WHEN EXPECTING THE CAR TO CONTINUE A SLOW BRAKE, AND INSTEAD IT HITS A BUMP AND DOES NOT BRAKE. I DON'T BELIEVE TOYOTA IS ADDRESSING THE DEFECT AT THIS TIME FROM REPORTS I HAVE READ. MY MOTHER (WITHOUT GOING INTO ANY DETAIL AFTER HAVING READ REPORTS) ASKED IF I HAD EXPERIENCED ANY ISSUES WITH MY PRIUS AND I TOLD HER OF THIS EXACT ISSUE PRIOR TO BEING AWARE OF MEDIA COVERAGE. *TR

I OWN A 2010 TOYOTA PRIUS. ON A NUMBER OF OCCASIONS IT FEELS AS THOUGH THIS VEHICLE HAS LOST BRAKING FORCE FOR A BRIEF PERIOD OF TIME (NO MORE THAN 1 SECOND) WHEN THE VEHICLE ENCOUNTERS AN UNEVEN ROAD SURFACE WHILE BRAKING. I BELIEVE THIS ONLY HAPPENS WHILE THE VEHICLE IS USING REGENERATIVE BREAKING. WHEN THIS HAPPENS THE VEHICLE FEELS LIKE IT'S LURCHING FORWARD BECAUSE THE BRAKING FORCE HAS BEEN REMOVED. ONCE I PRESS HARDER ON THE BRAKES TO FORCE THE FRICTION BRAKES TO APPLY, OR AFTER A BRIEF PERIOD OF TIME, THE CAR DOES CONTINUE TO SLOW DOWN. I HAVE NOT YET HAD AN ACCIDENT OF ANY KIND, BUT I CAN IMAGINE HOW ONE COULD HAPPEN BECAUSE OF THE INCREASED STOPPING DISTANCE. *TR

THERE ARE BRAKING ISSUES WITH MY 2010 TOYOTA PRIUS. 1) IN MULTIPLE INSTANCES, PERHAPS 12 TIMES, WHEN BRAKING IN SNOWY CONDITIONS, THERE IS A MOMENT WHERE THE BRAKES APPEAR TO BE INACTIVE. PRESSING MUCH HARDER BRINGS THE BRAKES BACK ON LINE. I HAVE DRIVEN FOR 40 YEARS, IN DOZENS OF CARS AND NEVER FOUND THIS. THE SITUATION IS COUNTER-INTUITIVE, BECAUSE I DO NOT WANT TO JAM ON THE BRAKES IN SLIPPERY CONDITIONS FOR OBVIOUS REASONS. 2) IN 3-4 INSTANCES WHEN BRAKING AND GOING OVER A POTHOLE OR LARGER BUMP, THE SAME AS THE ABOVE OCCURS, THAT IS MOMENTARY LOSS OF BRAKING. AGAIN, PRESSING HARDER ALLEVIATES THE PROBLEM. *TR

2010 PRIUS HAS JERKY BRAKES! WHEN BACKING DOWN A SLOPE LIKE OUR DRIVEWAY WITH MY FOOT ON THE BRAKE OR WHEN GOING DOWN A SMALL INCLINE WITH MY FOOT ON THE BRAKE, THE CAR OFTEN JERKS. BASICALLY, AS I START TO BACK UP IT WILL JERK AND THEN THE CAR STOPS AND THEN IT RELEASES AGAIN AND THEN IN A FEW MORE INCHES IT JERKS AGAIN AND THEN RELEASES AND THEN JERKS AGAIN. IT DOES THIS GOING FORWARD TOO. IT DOESN'T HAPPEN EVERY TIME I DRIVE THE CAR BUT IT HAS HAPPENED MAYBE 20 TIMES OR SO IN THE PAST COUPLE MONTHS. MY CAR IS 6 MONTHS OLD WITH 3000 MILES AND THIS STARTED HAPPENING WITHIN THE FEW 100 MILES OF HAVING THE VEHICLE. *TR

THE BRAKES RELEASE FOR A "SECOND" OR TWO WHEN THE CAR HITS A BUMP, ESPECIALLY IN COLD OR WET WEATHER. MY CAR HAS SLID THROUGH INTERSECTIONS IN THE WINTER A NUMBER OF TIMES BECAUSE OF THIS. I HAVE TO START BRAKING THREE BLOCKS AHEAD IN BAD WEATHER BECAUSE I NEVER KNOW WHEN THE BRAKES WILL RELEASE. THIS IS VERY DANGEROUS. *TR

ABS BRAKES FAIL TO ENGAGE WHEN ONE OF THE FRONT TIRES HITS POT HOLE / SLIPPERY BUMPY SURFACE. THE CAR SURGES FORWARD DURING BRAKING BEFORE BRAKING RESUMES. THE RECALL AND FIX TOYOTO IMPIMENTED ON MY CAR ON 2/15 DID NOT ADDRESS THE ISSUE, IT ONLY SHORTENED TO LAG TIME (PERIOD OF EXCELERATION - SURGE FORWARD). THE ISSUE STILL EXISTS AND IS STILL A DANGEROUS SAFETY HAZARD. I REPORTED THIS TO THE DEALER IN SMITHTOWN, NY WHO CONTACTED TOYOTA FACTORY AND THEY ADVISED THE DEALER, WHO ADVISED ME THAT THE CAR OPERATES AS PER SPECIFIATION. THE DEALER AND THE FACTORY DID NOT EVEN LOOK AT MY CAR! I DEMANDED A WORK ORDER WHICH THEY GAVE ME STATING "CAR TO BE BROUGHT BACK AFTER TOYOTA IS CONTACTED ADN ADVISES DEALER ON THE CONDITION". THE NEXT DAY THE DEALER CALLED ME TO SAY TOTOTA ADVISED THE CAR IS WORKING AS PER SPEC. TOYOTA REFUSES TO ADDRESS THIS ISSUE AND THE DEALER WILL NOT LOOK AT THE CAR. THIS IS A SAFETY HAZZARD THAT I SHOULD NOT HAVE TO BE SUBJECTED TO. PLEASE CONTACT ME. THANK YOU DOREEN GEBBIA, NESCONSET, NY

DRIVING MY 2010 PRIUS TOWARDS A TRAFFIC LIGHT. LIGHT TURNS FROM ORANGE TO RED AND I BRAKE IN PLENTY OF TIME. SMALL POTHOLE JUST AS I STOP MAKES THE CAR'S BRAKE "SLIP" AND I SHOOT FORWARD SEVERAL FEET. I NOW UNDERSTAND WHAT THE BRAKING PROBLEM IS PEOPLE HAVE BEEN TALKING ABOUT. *TR

BRAKE FAILURE WHEN DRIVING AT SLOW SPEEDS OVER BUMPY SURFACE. 2010 TOYOTA PRIUS. *TR