2003 Toyota Prius Brakes Problems

OCCASIONALLY, WHEN BRAKING, THE CAR WILL BEGIN TO BRAKE, THEN LURCH FORWARD A LITTLE, AND THEN BRAKE AGAIN PROPERLY. IT'S DISCONCERTING AT BEST AND SCARY AND DANGEROUS AT WORST. I'VE HAD THIS BRAKE PROBLEM FOR YEARS BUT FINALLY REALIZED THAT IT'S A SIGNIFICANT TOYOTA FLAW WITH THE ABS, AND THAT NEWER PRIUSES AND LEXUSES WERE RECALLED BECAUSE OF A SIMILAR PROBLEM. TOYOTA DID NOT RECALL THE 2001-03 PRIUSES AND REFUSE TO ACCEPT THAT IT'S ANYTHING BUT THE RESULT OF AGE (AS PER AUG 2020). HOWEVER, I'VE SEEN ONLINE THAT MANY OWNERS HAVE HAD THIS PROBLEM SINCE THEY FIRST BOUGHT THE CAR! I BOUGHT IT USED AND CAN'T REMEMBER HOW LONG IT'S BEEN HAPPENING. IT'S NOT EVERY TIME I DRIVE THE CAR. IT HASN'T CAUSED AN ACCIDENT, BUT IT CERTAINLY COULD. AND IF I CRASH INTO SOMEONE, IT WILL BE CONSIDERED MY FAULT, EVEN THOUGH IT'S VERY CLEARLY TOYOTA'S FAULT! I'M VERY DISTURBED THAT PEOPLE HAVE BEEN REPORTING THIS ISSUE FOR YEARS, THAT TOYOTA DEALERS HAVE REFERENCED IT AS A PROBLEM, TOO, AND THAT TOYOTA REFUSES TO ACCEPT RESPONSIBILITY AND FIX THE PROBLEM.

NHTSA ID

11352236

Incident

Aug 1, 2014

FOR NO APPARENT REASON WHEN DRIVING, THE EMERGENCY BRAKE WILL ENGAGE, WITHOUT PRESSING THE E BRAKE PEDAL. ALSO, INTERMITTENT ONCE CAR IS PARKED AND DOORS LOCKED, ALARM WILL JUST START GOING OFF FOR NONREASON.

NHTSA ID

11338658

Incident

Jul 10, 2020

Mileage

151,000 mi

THE VEHICLE WOULD NOT COME TO A STOP WHEN THE BRAKES WERE APPLIED. AN ALARM/LIGHT INDICATOR CAME ON FOR ABS BRAKES AT THE SAME TIME. I HAD TO APPLY THE EMERGENCY BRAKES FOR THE VEHICLE TO COME TO A STOP. I WAS ABLE TO AVOID TWO VEHICLES AND CAME TO A STOP IN THE BUS STOP AREA. THE VEHICLE WAS TOWED FOR REPAIR BUT THE REPAIR SHOP CANNOT FIND THE ROOT CAUSE OF THE PROBLEM WITHOUT THE NEED TO REPLACE THE ENTIRE BRAKING SYSTEM. FOR A VEHICLE WITH ONLY 36K MILES THIS SEEMS HIGHLY UNUSUAL AND A SEVERELY DANGEROUS SITUATION. *TR

NHTSA ID

10595998

Incident

May 3, 2014

Mileage

35,946 mi

ABS BRAKE LIGHT CAME ON THEN WENT OFF. I BROUGHT CAR TO MECHANIC WHO CHECKED BRAKES. THERE WAS NO PROBLEM WITH THE BRAKES. THEN I HEARD A HIGH PITCHED ALARM SOUNDING NOISE WHILE THE ABS BRAKE LIGHT WARNING WAS ON, THEN BOTH WOULD TURN OFF THEN ON THEN OFF.....THERE IS NO RHYME OR REASON TO WHAT IS CAUSING THIS TROUBLE. WHEN I CHECKED THE INTERNET, OTHER PRIUS OWNERS COMPLAINED ABOUT THIS AS WELL. SOME OF THOSE PEOPLE HAVE SPENT THOUSANDS OF DOLLARS TO FIX THE PROBLEM AND AFTER ALL THE "CODES" HAD BEEN FIXED, THE ALARM SOUNDED YET AGAIN. THERE SHOULD BE A RECALL NOTICE FOR THIS PROBLEM. *TR

NHTSA ID

10549568

Incident

Aug 14, 2013

Mileage

150,000 mi

I TOOK MY CAR IN A WEEK BEFORE THIS INCIDENT BECAUSE I NEEDED SERVICE AND WAS GOING ON A TRIP TO SAN DIEGO WITH MY 5 YR OLD DAUGHTER. KEYES TOYOTA IN VAN NUYS DID EVERYTHING TO IT AND REPLACED MY FRONT BRAKES AND INSPECTED EVERYTHING INCLUDING THE OTHER BRAKES... SO YESTERDAY, IM ON THE FREEWAY AND SUDDENLY A PIERCING, LONG BEEP HAPPENS AND 2 WARNING LIGHTS COME ON. " BRAKE AND ABS" ... I'M THINKING " WHAT JUST HAPPENED! I JUST HAD MY CAR MADE PERFECT THE OTHER DAY!!?? .. AND THEN, NOT TWO MINUTES AFTER THOSE WARNING LIGHTS CAME ON, MY BRAKES COMPLETELY FAILED!! PEDAL TO THE FLOOR NOTHING! :-( ... I WAS SOOOOOO SCARED.... I PUT MY HAZARDS ON AND CREPT OVER TO FIND A SHOULDER .... I WEAVED OVER WITHOUT CAUSING AN ACCIDENT THANK GOD SO I GET TO THE SHOULDER THANKFULLY BUT IT'S A SHORT SHOULDER... AND IM PRAYING AS I ROLL TO A STOP .. I'VE BEEN BACK AND FORTH WITH THE DEALERSHIP AND TOYOTA CORPORATE THESE PAST 24 HOURS BECAUSE I SHOULD NOT HAVE TO PAY OVER $2000 FOR SOMETHING THAT IS THE MANUFACTURERS FAULT!!... I COULD HAVE DIED OR KILLED SOMEONE...WHAT IF MY DAUGHTER WAS IN THE CAR AND I WAS AT AN INTERSECTION SLOWING FOR A RED LIGHT!!?? OH MY GOD!... SOMETHING HAS TO BE DONE... I'M FULLY READY TO SUE TOYOTA...GO TO THE NEWS OUTLETS...LOS ANGELES TIMES...ANYONE WHO WILL MAKE THIS PUBLIC... NO ONE SHOULD DIE BECAUSE THEY ARE TRYING TO HELP THE ENVIRONMENT.... AND NO ONE SHOULD DIE BECAUSE A CORPORATION WON'T OWN UP! ..I'M PUTTING A STOP ORDER ON THE REPAIR TOMORROW MORNING....I'M HOPING YOU CAN HELP ME AND OTHERS WHO COULD POTENTIALLY BE FATALLY INJURED (OR THEIR CHILDREN) FROM AN ELECTRICAL SYSTEM THAT JUST FAILS! BOTH THE DEALERSHIP AND CORPORATE JUST SAID " WELL, THAT PARTICULAR PART ONLY HAS A 3 YR WARRANTY OR 36,000 MILES AND SO AFTER THAT IT'S THE OWNERS RESPONSIBILITY. REALLY? IT'S MY RESPONSIBILITY IF YOUR CRAZY FAULTY CAR KILLS ME OR MY CHILD? NUTS! *TR

NHTSA ID

10467898

Incident

Jul 25, 2012

Mileage

85,377 mi

ABS BRAKE LIGHT COMES ON AND BEEPS, AND BRAKES BECOME SQUISHY ON MY 2003 TOYOTA PRIUS. TOYOTA DEALER DOES NOT KNOW WHAT THE PROBLEM IS. I HAVE SPENT HUNDREDS OF DOLLARS ON DIAGNOSTICS, BUT THE PROBLEM KEEPS HAPPENING. I HAVE NOTICED SIMILAR COMPLAINTS ON THE INTERNET REGARDING THIS ABS LIGHT PROBLEM, AND SQUISHY BRAKE PROBLEM. TOYOTA DEALER INFORMS ME THAT THEY HAVE HEARD NOTHING OF THIS PROBLEM FROM THE TOYOTA MOTOR CORPORATION. *TR

NHTSA ID

10336005

Incident

Jun 1, 2010

Mileage

177,000 mi

I OWN A 2003 PRIUS. WHEN I BOUGHT IT, BEFORE I EVER DROVE IT (WAS SNOW AND ICE) DEALER TOLD ME TO BE CAREFUL OF THE BRAKES. HE SAID, WHEN APPLIED, IT MAY FEEL FOR A SPLIT SECOND THAT I WAS SPEEDING UP OR NOT STOPPING. THE CAR DOES THIS ON SLIPPERY AND ROUGH RD AND ALWAYS HAS. I THOUGHT THAT WAS THE NATURE OF THE HYBRID AND HAVE LEARNED TO DRIVE ACCORDINGLY BUT IT IS DEFINITELY A TRYING SITUATION. *TR

NHTSA ID

10308347

Incident

Mar 23, 2008

Mileage

1 mi

ABS BRAKE FAILS FOR A SHORT TIME WHEN SLOWING AND HITTING A BUMP. THIS HAS OCCURRED INTERMITTENTLY SINCE PURCHASE (NEW) IN 2003. *TR

NHTSA ID

10307862

Incident

Feb 4, 2010

Mileage

135,000 mi

2203 TOYOTA PRIUS CST BRAKE LIGHT GOES ON INTERMITTENTLY HAD BRAKES REPLACED BY DEALER. BRAKES DID NOT FEEL OK BUT TOLD THIS WAS NORMAL. BRAKE PEDAL WENT TO FLOOR INTERMITTENTLY BUT NO BRAKE LIGHT CAME ON. AFTER CAR SLID THRU RED LIGHT AT INTERSECTION, CAR WAS BROUGHT BACK TO DEALER. REPLACED MASTER CYLINDER. BRAKES STILL DID NOT WORK. DEALER SAID BRAKE HOSES WERE SOFT & SWOLLEN AND BRAKE CONTROLLER STICKING. REPLACED BRAKE HOSES, FLUSHED LINES CAP. BLEEDER PLUG ACTUATOR ASSY. CAR HAS 67,000 MILES. *TR

NHTSA ID

10306335

Incident

Jan 12, 2010

Mileage

66,627 mi

TL*THE CONTACT OWNS A 2003 TOYOTA PRIUS. WHENEVER THE CONTACT WOULD ATTEMPT TO APPLY THE BRAKES WHILE TRAVELING OVER A BUMPY OR SLIPPERY SURFACE THE CONTACT NOTICED THAT THE BRAKES WOULD NOT FULLY ENGAGE INCREASING STOPPING DISTANCE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE FAILURE COULD NOT BE REPRODUCED. THE CONTACT HAS NOTICED THE FAILURE SINCE THE DAY THE VEHICLE WAS PURCHASED. THE CURRENT AND FAILURE MILEAGES WERE 109,000.

NHTSA ID

10305988

Incident

Jan 28, 2010

Mileage

109,000 mi

A NUMBER OF TIMES WHEN I BRAKE ON UNEVEN ROADS, THE BRAKES ON MY 2003 PRIUS FEEL AS IF THEY AREN'T WORKING. THEY HAVE ALWAYS CAUGHT ALMOST IMMEDIATELY, SO THAT I HAVEN'T THOUGHT OF REPORTING THE PROBLEM UNTIL THE RECENT REPORTS ON THE NEWEST PRIUS MODEL. INCIDENT DATE IS THE MOST RECENT, EVEN THOUGH THE PROBLEM HAS BEEN THERE SINCE I BOUGHT THE CAR. *TR

NHTSA ID

10305814

Incident

Feb 2, 2010

Mileage

90,000 mi

I HOPE YOU ARE NOT LIMITING YOUR INVESTIGATION OF PRIUS BRAKES TO THE 2010 MODEL. I HAVE HAD THE SAME PROBLEM ON MY 2003 PRIUS SINCE THE DAY I DROVE IT HOME. WHEN GOING OVER UNEVEN SURFACES, PARTICULARLY METAL PLATES OR MANHOLE COVERS, BRAKING MOMENTARILY STOPS AND DOES NOT RESUME UNTIL THE WHEELS HIT THE REGULAR ROAD SURFACE. ALTHOUGH I HAVE HAD NO ACCIDENTS, THE SENSATION OF SKIDDING IS FRIGHTENING. *TR

NHTSA ID

10305477

Incident

Nov 1, 2002

Mileage

6 mi

TL*THE CONTACT OWNS A 2003 TOYOTA PRIUS. THE CONTACT WAS DRIVING APPROXIMATELY BETWEEN 25-35 MPH OVER UNEVEN PAVEMENT WHEN PRESSURE WAS APPLIED TO THE BRAKE PEDAL AND THE VEHICLE FAILED TO STOP UNTIL EXCESSIVE FORCE WAS APPLIED TO THE BRAKE PEDAL. THE VEHICLE RESUMED NORMAL OPERATION. THE FAILURE CONTINUED TO OCCUR. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THE TECHNICIAN WAS UNABLE TO DUPLICATE THE FAILURE. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 100.

NHTSA ID

10305226

Incident

Sep 10, 2003

Mileage

100 mi

I HAVE A 2003 TOYOTA PRIUS AND ALSO EXPERIENCED THE EXACT SAME BRAKING PROBLEMS AS HAS BEEN REPORTED ABOUT THE 2010 PRIUS. IF I GO OVER A DIP IN THE ROAD WHILE BRAKING, OCCASIONALLY THE BRAKE WILL NOT HOLD (EVEN IF IT IS FULLY DEPRESSED) AND I NEED TO RELEASE AND DEPRESS AGAIN. I WAS TOLD BY THE DEALER THAT THIS WAS THE ANTILOCK BRAKING SYSTEM AND NOT A REAL PROBLEM WITH THE CAR. I NOW SUSPECT THAT IT IS THE SAME SOFTWARE GLITCH AS THE LATER PRIUS. *TR

NHTSA ID

10305192

Incident

Jan 1, 2010

Mileage

200 mi

IN READING RECENT MEDIA REPORTS REGARDING BRAKING FAILURES OF THE 2010 TOYOTA PRIUS, I REALIZED THAT I HAVE EXPERIENCED SIMILAR LAPSES IN MY 2003 PRIUS' BRAKING SINCE THE DAY I BOUGHT THE CAR. I WANTED TO GET THIS ON RECORD AS IT SEEMS THE MEDIA REPORTS BELIEVE THIS TO ONLY BE A PROBLEM IN THE 2010 MODEL WHEN THIS MAY BE AN ISSUE THAT HAS BEEN GOING ON FOR A LONG TIME. BASICALLY, WHETHER OR NOT THE PHENOMENON OCCURS DURING BRAKING DEPENDS ON SEVERAL FACTORS AND SEEMS TO OCCUR MORE OFTEN IF THE ROAD IS WET. IF ONE HAPPENS TO BE ROLLING OVER A MANHOLE COVER, OR HITTING A POTHOLE OR BUMP AT THE MOMENT THE BRAKES ARE DEPRESSED IT FEELS AS THOUGH, FOR A BRIEF MOMENT, THAT THE CAR IS SKIDDING FORWARD ACROSS THE CHANGE IN ROADWAY SURFACE. THIS ALSO HAPPENS WHEN BRAKING OVER A THICKLY PAINTED CROSSWALK LINE OR THE WORD STOP PAINTED ON THE ROAD. THE COMMON FACTOR SEEMS TO BE BRAKING AS THE CAR'S TIRE TRANSITIONS FROM A HIGH FRICTION TO REDUCED FRICTION SURFACE. I BELIEVE I COULD REPRODUCE THIS ON DEMAND GIVEN THE RIGHT CONDITIONS. EARLY ON I BROUGHT IT TO THE ATTENTION OF MY DEALERSHIP BUT THEIR WAS NO FOLLOWUP. FORTUNATELY IT HAS NEVER CAUSED AN ACCIDENT, BUT UNDER THE RIGHT CIRCUMSTANCES IT COULD. I'VE DEALT WITH THE PROBLEM BY EITHER BRAKING BEFORE OR AFTER THE ROAD SURFACES I KNOW TO CAUSE THE BRAKE SLIPPING EFFECT. *TR

NHTSA ID

10304979

Incident

Mar 17, 2003

Mileage

100 mi

THE BRAKE SYSTEM IN MY CAR FAILED. IT WAS FOUND LATER THAT BOTH THE COMPUTER AND PUM/ENGINE SYSTEM FOR THE BRAKES FAILED SIMULTANEOUSLY. I WAS CHARGED $2000 FOR REPAIRS. *TR

NHTSA ID

10279612

Incident

Feb 25, 2009

Mileage

83,000 mi