2005 Toyota Prius service brakes, electric problems

“(1). I SLAMMED ON THE BRAKES, BUT THERE WAS NO POWER BRAKES. THE 2005 PRIUS SLOWED, BUT DID NOT STOP UNTIL IT CRASHED INTO ANOTHER VEHICLE. I WAS GOING APPROXIMATELY 35 MPH, AND I TRAVELED 3 CAR LENGTHS BEFORE COLLIDING WITH THE OTHER VEHICLE. (2). LOSS OF POWER ASSIST HAD PREVIOUSLY OCCURRED WHILE BACKING UP, BUT THIS WAS THE FIRST FAILURE GOING FORWARD. (3). TOTAL LOSS(TOTALED,, $7,000 DAMAGE). THE 2005 PRIUS IS NOW AT AN AUTOMOBILE RECYCLING YARD. )4) I NOTIFIED TOYOTA. BUT I HAD TO CALL THEM BACK SEVERAL TIMES, AND AFTER 15 DAYS, SOMEONE FINALLY ANSWERED, INSTEAD OF ME GETTING THEIR VOICE MAIL. IF THE POWER BRAKES HAD FAILED AT AN INTERSECTION, IT COULD HAVE BEEN A FATAL CRASH. *KB”

“NOV 15 2010 THE CAR WAS IN SERVICE FOR 5000 MILES CHECK. THE DEALERSHIP DECLARED THAT THE BRAKES AND COOLANT FLOW VALVE NEEDED REPLACEMENT AND STATED THE CAR WAS UNSAFE TO DRIVE. UPON AGREEING FOR REPAIRS THE DEALERSHIP SAID THE CAR WAS SAFE TO DRIVE AND IT WILL TAKE 2 WEEKS FOR PARTS TO ARRIVE. 15 DEC 2010 THE CAR WAS TAKEN IN FOR STATED REPAIRS ($2000), SINCE THEN THE CAR HAS HAVE INTERMITTENTLY BRAKING FAILURES AT LOW SPEEDS UNDER 20 MPH AND AT STOPS ON A DOWNGRADE. THE CAR WAS TAKEN IN FOR REPAIRS AGAIN IN 16 JAN 2011. THE CAR STILLS HAS INTERMITTENT FAILURES, THE LIGHTS TO THE PARKING BRAKES, ABS BRAKES, VBC LIGHTS AND THE WARNING LIGHTS ARE STILL ON SINCE THE REPAIRS. WHILE REPLACING THE TIRES FIRESTONE ON 30 JAN 2011 FOUND THE CODE 1247 ON THE ECU BY THEIR TECHNICIAN. THE LIGHTS ON THE DASH BOARD ARE STILL ON AT ALL TIMES. AFTER LEAVING FIRESTONE, THE CAR SURGE FORWARD WHILE STOP ON A DOWNGRADE WHILE THE BRAKE DEPRESS, I FELT THE PRESSURE RELEASE THUS I DEPRESS HARDER ON THE BRAKES PETAL UNTIL IT WAS ON THE FLOOR, I HAD TO USE THE EMERGENCY BRAKE TO STOP. I WILL TAKE THE CAR INTO THE TOYOTA DEALERSHIP FOR THE THIRD TIME 31 JAN 2011. *TR”

“LOW-SPEED BRAKE FAILURE: ACCELERATED LIGHTLY AWAY FROM TRAFFIC SIGNAL TO APPROXIMATELY 5-7 MPH, TRAFFIC THEN SLOWED, APPLIED BRAKES NORMALLY WITH NO NOTICEABLE DECELERATION OR PEDAL RESISTANCE. REMOVED FOOT FROM BRAKE AND THEN REAPPLIED BRAKES VERY HARD, PEDAL AGAIN OFFERED LITTLE RESISTANCE, NO NOTICEABLE DECELERATION. ROADWAY SURFACE DRY, FREE FROM DIRT/GRAVEL, SMOOTH WITH SLIGHT DOWNGRADE, TEMPERATURE BELIEVED TO BE SLIGHTLY ABOVE FREEZING. IMPACTED CAR AHEAD AT LOW SPEED ' NO AIRBAG DEPLOYMENT, MINIMAL DAMAGE TO THIS CAR (EST. $750), ADDITIONAL MINOR DAMAGE TO TWO CARS AHEAD. AFTER CRASH, SHUT CAR OFF. AFTER RESTARTING CAR, BRAKES APPEARED TO WORK NORMALLY. UPON INSPECTION FOUND NO FAULT CODES PRESENT, NO WARNING LIGHTS, BRAKE PADS HAD SUBSTANTIAL MATERIAL REMAINING, BRAKE FLUID LEVEL NORMAL, TIRES WITH SUBSTANTIAL TREAD DEPTH. CAR HAS BEEN MAINTAINED IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS SINCE NEW, ALL RECALLS HAVE BEEN COMPLIED WITH. . CAR WAS FULLY WARM, HAD BEEN DRIVEN 14 MILES SINCE START. CAR HAD BEEN OPERATED AT FREEWAY SPEEDS FOR LAST 5-6 MILES BEFORE TRAFFIC SIGNAL. BASED ON PAST EXPERIENCE ALONG THIS FREQUENTLY TRAVELED ROUTE, HYBRID…”

“DURING WET WEATHER, THE BRAKES GRAB. THIS USUALLY OCCURS DURING THE FIRST 10 MINS. OF DRIVING. BASED ON THE RECENT RECALLS, I DECIDED TO DO SOME RESEARCH ONLINE TO DETERMINE IF OTHERS OWNERS HAD SIMILAR PROBLEMS. I HAVE NOT TAKEN THE CAR IN TO THE DEALERSHIP. THE BRAKES HAVE BEEN THIS WAY SINCE I'VE OWNED THE CAR. *TR”

“YESTERDAY ON A LONG TRIP THROUGH THE MOUNTAINS, LIGHTS CAME ON MY DASH ON MY 2005 TOYOTA PRIUS THAT INDICATED A HYBRID PROBLEM. HOPING TO GET TO A PLACE WHERE I COULD GET SERVICE I CONTINUED ON. (I ALSO NOTED THAT THE CRUISE CONTROL LIGHT WOULD NOT COME ON.) THEN THE BRAKE LIGHT AND ABS CAME ON THE DASHBOARD WITH AN AUDITORY ALARM. I TESTED THE BRAKES AND THEY SEEMED OKAY AND THERE WAS NO BERM TO PULL OFF. THEN I HIT THE BRAKES ON A CURVE AND THE PEDDLE WENT DOWN LOW. I PRESSED HARD AND GOT IT OFF THE ROAD ON A WIDE SPOT THAT BY THE GRACE OF GOD APPEARED. I HAD IT TOWED TO THE NEAREST DEALER. TODAY, THE DEALER SAID THEY CHECKED ALL CODES AND INSPECTED THE BRAKING SYSTEM AND CAN FIND NOTHING WRONG AND ALL CODES HAVE LEFT. THEY SAID THE HYBRID BATTERY SEEMED TO BE LOW BUT THEY FIND THE BATTERY AND CHARGING SYSTEM TO BE OK. (THEY SAID BRAKES DO NOT WORK WHEN THE BATTERY IS LOW AND THE BATTERY IS CHARGED BY BRAKING WHICH I WAS DOING PLENTY OF IN THE MOUNTAINS.) THEY ALSO SAID THE COMPUTER IS OK. THEY DRIVE IT AND NOTHING IS WRONG. *TR”

“I FIRST REPORTED THIS TO TOYOTA MARCH 10, 2010. I DID SO AFTER TALKING WITH A COWORKER WHO HAD A 2010 PRIUS. I HAVE A 2005 PRIUS. WE BOTH EXPERIENCED THE SAME THING. THEREFORE, I FIGURED I SHOULD TAKE IT MORE SERIOUS. THE TOYOTA'S SAFETY INCIDENT NUMBER IS [XXX] . WHEN GOING OVER BUMPS AND HITTING THE BREAKS I NOTICE THAT INSTEAD OF IMMEDIATELY SLOWING THE CAR DOWN, THE CAR SEEMS TO EITHER NOT SLOW AT ALL AND SEEMS TO ACCELERATE. KNOWING THAT GOING OVER BUMPS CAN CAUSE A TIRE TO TEMPORARILY LOOSE CONTACT WITH THE ROAD SURFACE AND THAT CARS CAN ELECTRONICALLY TRANSFER DRIVE FROM A TIRE THAT LOOSES CONTACT WITH THE SURFACE TO THE OTHER WHEEL, THERE MAY BE MIXED SIGNALS HAPPENING. THE BRAKES TELLING THE CAR TO STOP, THE TRACTION CONTROL TELLING THE ACCELERATION TO TRANSFER. IT SEEMS THE ACCELERATION IS TAKING PRECEDENCE. REGARDLESS, THIS SEEMS THAT IT COULD CAUSE A PROBLEM IF ON A BUMPY ROAD SURFACE OR A POT HOLE OR SOMETHING AND A CAR STOPS INFRONT OF ME OR A KID RUNS INTO THE STREET OR FOR SOME OTHER REASON I NEED TO STOP. *TR”