2009 Toyota Prius Driver assistance Problems

Dashboard Warning Lights: ABS, VSC, Parking Brake Light, Triangle with Exclamation Point, Codes: C1256 & C1391, Intermittent Audible Cabin Buzzing indicating critical pressure loss on start-up for about 10 seconds...then stops, not loss so much as anti-braking quick bursts at about 5 mph of stopping v slowly and seamlessly coming to a stop. I contacted Toyota Corporate Case Management; they refused to escalate or remediate the issue due to vehicle mileage, despite being notified of the active brake pressure leak codes and the audible safety alarm.

NHTSA ID

11744740

Incident

Dec 10, 2025

Brake actuator is broken. Toyota knew about this problem and they had a warranty for 10 years or 150k miles. Mine only has 80k miles. The repair is half of what the car is worth. I thought a Toyota with such low miles would be dependable. Toyota knew that people have died from this problem with their car. I need this car to get to work and get my kids to school. It’s older than 10 years so I am just screwed on something they knew was broken. Of course the sales person at the Toyota dealership did not tell us about it when he sold us the car

NHTSA ID

11733751

Incident

Mar 24, 2026

Breaking system failure do to ASB Actuator, breaks are locking and vehicle is engine braking.

NHTSA ID

11652330

Incident

Feb 11, 2025

When I am coming to a stop or need to put on my brakes my car will accelerate at a jump ahead pace As if to take off instead of slowing down and stopping. Regardless whether I’m turning a corner or I’m continuing straight when I have to Put on the brakes it speeds up instead.

NHTSA ID

11647997

Incident

Feb 5, 2025

In the 2009 Toyota Series II vehicle there are two parts for the brake actuator pump assembly which has been cycling about every 20 seconds for the past six months or more. There is an intermittent tone when depressing the brake pedal before starting the car (engine off). The Brake dash warning light is on continuously. Occasional loss of brake power in reverse causing the driver to re-apply the brakes to stop unwanted motion of the vehicle.

NHTSA ID

11629033

Incident

Jul 1, 2024

The engine light went on while driving on the highway. We immediately pulled over and had the vehicle towed to the nearest dealership. The dealership informed us that both the Brake Actuator (Toyota part TO44500-47141) and water pump (Toyota par TOG9020-47031) had failed. The car was no longer save to drive.

NHTSA ID

11618991

Incident

Sep 21, 2024

I went to park in a parallel space when all of a sudden my ABS, (!), VSC light come on with the loss of brake power and a loud beeping noise. With this sudden loss of brakes in the middle of driving, I could have harmed myself and others in any cars around me because I also lost steering capability. This is a problem that there was an extended warranty for, but there should be a recall. My car is a 2009 and was only covered before the pandemic and now it is 2021 and I have no recourse, but to try and fork over $3500.00 for which I don't have. I am a second owner and this is a very common problem amongst Prius owners. I didn't have any other symptoms that I could point out prior to this situation. I have had my hybrid battery, engine, ecu and most recently a stolen catalytic converter replaced. This ABS actuator problem needs to be addressed for another 5 years with a free repair. I would hate to have hit some other car and had my car smash into a wall, another car, pedestrian, pole or any other object based on it's ability not to stop.

NHTSA ID

11428897

Incident

Aug 6, 2021

UPON STARTING THE VEHICLE IT MAKES A HIGH-PITCHED BEEP, FOLLOWED BY A BUZZING SOUND THAT REPEATS EVERY FIVE TO EIGHT SECONDS. THE DASHBOARD DISPLAYS THE TPS, ABS, VSC, AND BRAKE LIGHTS. WHEN PUTTING THE VEHICLE IN DRIVE, THE HIGH-PITCH SOUND RETURNS FOR ONE TO TWO MINUTES. DURING THAT TIME THE BRAKE PEDAL BECOMES IMPOSSIBLE TO DEPRESS. IF THE ENGAGED, THE VEHICLE DOES NOT STOP UNTIL THE BRAKE PRESSURE RETURNS. ONCE THE SOUND STOPS, THE BRAKE PRESSURE RETURNS TO NORMAL. DIAGNOSIS FROM TOYOTA SHOWS: CODE C1256 = ACCUMULATOR LOW PRESSURE. CODE C1391 ABNORMAL LEAK OF ACCUMULATOR PRESSURE. ESTIMATE FOR REPAIRS = $2,811.72. AT PRESENT THE VEHICLE IS UNSAFE TO OPERATE AS TOYOTA ADVISED, IN THE VEHICLE'S CURRENT CONDITION THE BRAKE SYSTEM COULD FAIL AT ANY TIME.

NHTSA ID

11307887

Incident

Feb 7, 2020

Mileage

177,000 mi

MY PRIUS NOW HAS ALL THOSE DASH LIGHTS ON: !, ABS, VCS. I WAS DRIVING YESTERDAY, ON A CITY STREET AND THE LIGHTS CAME ON, AND THE BRAKES SUDDENLY DID NOT WORK-HARD TO PUSH. FOR MONTHS, WHEN I WOULD DRIVE OVER ROUGH TERRAIN, I HAD THE LOSS OF BRAKING, ACCELERATING, AND THE SLICK ROAD ICON WOULD ILLUMINATE. THE IS EXACTLY THE SAME ABS MODULE PROBLEM AFFECTING 2010 PRIUS, ANDS NEEDS TO BE RECALLED AND REPAIRS COVERED.IF I DIDN'T STAY SO FAR BEHIND OTHER VEHICLES, I WOULD HAVE REAR-ENDED SOMEONE.

NHTSA ID

11164066

Incident

Dec 29, 2018

Mileage

95,000 mi

CONSUMER WRITES IN REGARDS TO VEHICLE STEERING LOSS, BRAKE LOSS AND ACCELERATION ISSUES, CORPORATION FAILURE TO INFORM CONSUMER OF COUNTERFEIT DRIVE TRAIN ISSUES THAT INJURED CONSUMER. SMD THE CONSUMER STATED TOYOTA FAILED TO WARN THEM ABOUT BEING CONVICTED OF "USING THE INTELLECTUAL PROPERTY OF HYBRID DRIVE INVENTOR WITHOUT HIS PERMISSION." *TR

NHTSA ID

10870978

Incident

Apr 21, 2016

TL* THE CONTACT OWNS A 2009 TOYOTA PRIUS. WHILE DRIVING AT 2 MPH AND MAKING A LEFT TURN, THE VEHICLE ACCELERATED INDEPENDENTLY AND THE CONTACT LOST CONTROL OF THE VEHICLE. AS A RESULT, THE CONTACT CRASHED INTO A GARBAGE TRUCK. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES REPORTED. THE CONTACT PULLED THE VEHICLE OVER TO THE SIDE OF THE ROAD AND DROVE HOME. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR REPAIRS. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS UNKNOWN. *TT

NHTSA ID

11076281

Incident

Feb 23, 2018

TRAVELING 101 NORTH TOWARD VENTURA, ON THE TOP OF THE DOWN HILL GRADE JUST SOUTH OF THE CAMIRILLO SPRINGS EXIT. ALL LIGHTS ON PANEL CAME ON. ESTIMATE 65 MPH, APPLIED BRAKE TO SLOW WITH TRAFFIC FLOW. NO BRAKES,NO WARNING.SEMI TRACKER TRAILERS ALSO SLOWING. TOOK EXIT BOTTOM OF HILL WITH FLASHES ON, WENT THRU STOP SIGN AS MY SPEED AT APPROX 45-48MPH. WENT THRU SECOND STOP SIGN MADE SHARP LEFT PULLED EMERGENCY BRAKE ON... THIS IS A GARAGE CAR SERVICED BY DEALER ONLY, 3RD TIME FOR ELECTRICAL PROBLEM! NEVER WHILE DRIVING.... THIS WAS NEAR FATAL! THIS WAS AN ELECTRICAL PROBLEM OF THE MANUFACTURE, NEVER REPAIRED CORRECTLY! HAVE 3 COPIES OF REPAIRS FOR THE ELECTRICAL STARTING 6 MONTHS AFTER PURCHASE CAR...HELP.

NHTSA ID

10953876

Incident

Feb 9, 2017

Mileage

70,000 mi

DRIVER WENT TO PARK AND THE BRAKES DID NOT RESPOND! IN FACT THE VEHICLE WENT FROM 2-5MPH TO APPROX 30+ & KEPT PICKING UP SPEED AND WENT INTO STOREFRONT. DRIVER WAS ABLE TO WRESTLE VEHICLE INTO REVERSE AND IT WENT EQUALLY FAST BACK INTO A PARKED CAR WHERE IT FINALLY CAME TO A STOP. HUGELY FRIGHTENING AND POTENTIALLY LETHAL.

NHTSA ID

10914977

Incident

Oct 8, 2016

Mileage

174,000 mi

2009 TOYOTA PRIUS. CONSUMER WRITES IN REGARDS TO VEHICLE ACCELERATION ISSUES. *SMD THE CONSUMER STATED THE VEHICLE WAS INSPECTED ON MAY 10, 2010. ON FEBRUARY 11, 2010, THE CONSUMERS WIFE WAS APPROACHING A SMALL BUSINESS IN A PARKING LOT. SHE WAS ALMOST AT A DEAD STOP, WHEN THE VEHICLE SUDDENLY WENT A RAPID ACCELERATION MODE, JUMPED A CURBED AND SIDEWALK, AND HIT A BRICK WALL OF A BUSINESS BUILDING. THERE WAS SEVERE DAMAGE TO THE VEHICLE AS WELL AS TO THE BRICK WALL OF THE BUILDING. THE AIR BAG DID NOT DEPLOY. *JB

NHTSA ID

10712781

Incident

Feb 11, 2015

TOYOTA PRIUS 2009 HEADLIGHTS WERE ON AND OFF FINALLY THE LEFT SIDE WENT OFF TOTALLY. THE SEAL OUTSIDE THE HEADLIGHT DIDN'T PREVENT OF WATER CAME INTO THE SYSTEM AND DAMAGED IT . ALSO WHILE DRIVING THE CAR ACCELERATED AND DECELERATED BY ITSELF . AND WHILE STOPPING THE CAR JUMP. *TR

NHTSA ID

10694925

Incident

Jan 28, 2015

Mileage

80,000 mi

A YEAR AGO, UPON TAKING OFF FROM A STOP MY CAR BEGAN TO STALL. I DRIVE TWO BLOCKS IT CONTINUES TO PUTT ALONG AND STALL, THEN AFTER LESS THAN A MILE IT STARTS TO RUN AS NORMAL. I TAKE MY CAR IN TO BE TOLD IT IS OUT OF GAS, WHICH IT DID NOT INDICATE LOW FUEL, IT HAD OVER A QUARTER OF A TANK. I INSIST THEY CONTINUE TO CHECK MY CAR OVER DAYS OF THEM DRIVING IT, AFTER A WEEK THEY EXPERIENCE SOMETHING SIMILAR AND REPLACE MY JUNCTION BOX. SINCE THEN I'VE REPLACE THE WATER PUMP, TAKEN MY CAR IN FOR A STEERING RECALL. ALSO, THERE ARE INSTANCES WHERE MY CAR UPON TAKE OFF STALLS, BUT NOTHING SEVERE, JUST SOMETHING YOU FEEL WHEN ACCELERATING. RECENTLY, 6/5/14, I EXPERIENCED THE SAME ISSUE, BUT THIS TIME I IMMEDIATELY PUT GAS INTO MY CAR EVEN THOUGH MY INDICATOR PANEL SHOWS I HAVE FUEL. ONLY THIS TIME I START MY CAR AND THE AIR CONDITIONER IS NOT WORKING AND IT CONTINUES TO STALL, AFTER TURNING MY CAR ON AND OFF SEVERAL TIMES AND DRIVING A FEW BLOCKS THE AC CUTS ON AND MY CAR BEGINS TO RUN FINE. I HAVE BEEN TOLD BY TOYOTA THAT BC THERE IS NO INDICATOR LIGHT AND IT'S RUNNING FINE THERE IS NOTHING THEY CAN DO. THERE WAS A RECENT RECALL IN FEBRUARY OF 2014 WITH SIMILAR ISSUES I AM EXPERIENCING BUT MY CAR WAS NOT APART OF THE RECALL. NOT SURE WHAT ELSE I CAN DO. NUMEROUS TOYOTA DEALERSHIPS HAVE BEEN OF NO HELP AND I FEAR THAT MY SAFETY IS AT RISK. *TR

NHTSA ID

10597789

Incident

May 31, 2013

Mileage

85,000 mi

DRIVER INTENTIONALLY ACCELERATED TO AVOID COLLISION, THEN PRIUS UNINTENTIONALLY ACCELERATED AFTER IMPACT WITH THE OTHER VEHICLE, CROSSING THE MEDIAN AND CROSSING THE OPPOSITE DIRECTION STREET LANES THEN UP ON TO THE SIDEWALK AND HIT THE CONCRETE BRIDGE RAIL AND FINALLY STOPPED. HAVE CONTACTED TOYOTA, THEY WANT UP TO A MONTH TO PULL THE CRASH DATA FROM THE CAR. I ASKED IF THEY COULD PULL THE DATA IN A WEEK, THEY SAID UP TO 30 DAYS THE CAR WILL HAVE TO SIT AT THE DEALERSHIP. A MONTH IS UNREASONABLE TO GO WITHOUT A CAR. THEY REFUSED TO SEND THE INVESTIGATOR TO PULL THE DATA AT THE BODY SHOP, SAID IT MUST BE DONE AT THE DEALERSHIP. I GAVE THEM THE NAME & ADDRESS OF THE BODY SHOP. *TR

NHTSA ID

10575111

Incident

Mar 26, 2014

Mileage

75,000 mi

AS I WAS DRIVING MY 2009 TOYOTA PRIUS ON THE SERVICE ROAD OF I-30 IN DALLAS AROUND 25 MPH AFTER PREVIOUSLY TAKING OFF FROM A RED LIGHT, MY VEHICLE'S WARNING LIGHTS ALL TURNED ON AND STARTED TO BEEP AND I COULD NOT BRAKE OR REALLY STEER. MY VEHICLE...I ALMOST HIT THE VEHICLE IN FRONT OF ME. SOMEHOW I WAS ABLE TO TURN RIGHT INTO A PARKING LOT AND SOMEHOW PRESS ON THE BRAKES STRONG IN ENOUGH TO MAKE THE CAR STOP. I FEARED FOR SAFETY AND THE SAFETY OTHERS AS WELL. IT WAS A VERY SCARY SITUATION TO BE IN A CAR THAT WAS NOT RESPONDING WHEN YOU ARE TRYING TO BREAK AND THERE'S NOTHING YOU CAN DO ABOUT IT. ONCE I WAS IN THE PARKING LOT, I TURNED THE VEHICLE ON AND OFF AND THE LIGHTS WERE STILL ON AND BEEPING, DID IT AGAIN AND IT STOPPED. I TOOK THE CAR TO THE TOYOTA DEALERSHIP AND THEY ARE TELLING ME IT'S AN ISSUE WITH THE ACCELERATOR AND BRAKE SYSTEM AND THAT I HAVE TO PAY TO HAVE IT FIXED, BUT I AM WONDERING HOW CAN TOYOTA NOT BE AT FAULT FOR THIS SAFETY ISSUE? I'M GLAD I DIDN'T INJURE MYSELF OR ANOTHER PERSON THIS TIME, BUT I THINK TOYOTA REALLY NEEDS TO LOOK INTO THIS ISSUE WITH THEIR PRIUS VEHICLES. I DO NOT FEEL SAFE DRIVING MINE AT ALL NOW.....THEY CAN NOT GET AWAY WITH NOT BEING RESPONSIBLE AND LIABLE FOR THEIR FAULTY AND DEFECTIVE VEHICLE'S SAFETY MECHANISMS. *TR

NHTSA ID

10555959

Incident

Dec 12, 2013

Mileage

110,000 mi

THE VEHICLE BRAKING LOST BRAKING MOMENTARILY WHEN I WAS DRIVING OVER SMALL BUMPS AND VEHICLE SLIP SIGN ILLUMINATED. *TR

NHTSA ID

10552963

Incident

Sep 17, 2013

Mileage

71,500 mi

MY WIFE AND I WERE DRIVING DOWN A RESIDENTIAL STREET APPROACHING A STOP SIGN. THERE WERE TWO CARS STOPPED AT THE SIGN. SEVERAL HUNDRED FEET FROM THE STOP, I TOOK MY FOOT OFF THE ACCELERATOR. THE CAR DID NOT SLOW DOWN. I STEPPED ON THE BRAKE. THE CAR DID NOT SLOW DOWN. I STOOD ON THE BRAKE AS HARD AS I COULD. THE CAR DID NOT SLOW DOWN. I SAID TO MY UNDERSTANDABLY ALARMED WIFE, WE'RE NOT STOPPING. AND WE DIDN'T UNTIL WE SMASHED INTO THE BACK OF A TAHOE STOPPED AT THE STOP SIGN, DOING MAJOR DAMAGE TO THE PRIUS THAT RENDERED IT UNDRIVEABLE AND PERHAPS TOTALED. MY WIFE HAS A VERY SORE BACK THAT I AM HOPING STARTS TO FEEL BETTER TODAY OR WE WILL HAVE TO SCHEDULE A DOCTOR'S APPOINTMENT. *TR

NHTSA ID

10543245

Incident

Sep 10, 2013

Mileage

81,000 mi

I PULLED MY TOYOTA PRIUS INTO MY DRIVEWAY, STEPPED ON THE BRAKE, OPENED THE GARAGE DOOR AND WAITED FOR MY HUSBAND TO GET OUT OF THE CAR. HE OPENED THE PASSENGER SIDE DOOR AND STARTED TO MOVE HIS FOOT OUT THE DOOR BUT BEFORE HE EVEN GOT ONE FOOT OUT, THE CAR SURGED AHEAD AND RAN INTO THE GARAGE, PRETTY MUCH DESTROYING ALL THE STORAGE UNITS ON THE RIGHT SIDE OF THE GARAGE. MY HUSBAND THINKS THE CAR WAS GOING BETWEEN 35 AND 40 MPH. SINCE MY ACCIDENT THERE HAVE BEEN TWO OTHER INCIDENTS OF TOYOTAS ACCELERATING INDEPENDENTLY IN PALO ALTO. ONE RAN INTO A HOUSE ON PARK AVENUE, DESTROYING THE FRONT WALL AND FRONT DOOR OF THE HOUSE. A FEW DAYS LATER, A TOYOTA RAN OVER A CURB, ACROSS A LAWN AND INTO A CORNER OF A HOUSE ON NORTH CALIFORNIA AVE. BOTH OF THESE INCIDENTS WERE REPORTED TO THE POLICE UNFORTUNATELY, I CANNOT GET THE NAME AND CONTACT OF THE OTHER TWO DRIVERS BECAUSE MY NAME IS NOT ON THE POLICE REPORTS. MY QUESTIONS ARE THESE: IS THERE ANY LEGAL WAY TO GET THE INFORMATION ABOUT THESE OTHER 2 DRIVERS? ALSO, SOMEONE TOLD ME THEY THOUGHT THERE IS A CLASS ACTION SUIT OUT AGAINST TOYOTA BECAUSE OF ACCELERATION PROBLEMS. IS THERE ANY WAY TO FIND OUT ABOUT THAT? I AM AWARE THAT THIS IS PROBABLY JUST A PROBLEM I WILL HAVE TO DEAL WITH BUT I ALWAYS TRY EVERYTHING. *TR

NHTSA ID

10503348

Incident

Jan 3, 2013

Mileage

23,045 mi

TL* THE CONTACT OWNS A 2009 TOYOTA PRIUS. THE CONTACT STATED WHILE THE BRAKES WERE DEPRESSED THE VEHICLE ACCELERATED ABNORMALLY. THE CONTACT CRASHED INTO A POST OFFICE BUILDING AS A RESULT. THE CONTACT SUSTAINED INJURIES TO THE HEAD, SHOULDER, NECK AND BACK. THE POLICE WERE CONTACTED AND A REPORT WAS TAKEN. THE VEHICLE WAS TOWED TO A LOCAL REPAIR SHOP. THE MANUFACTURER WAS CONTACTED BUT THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 32,000.

NHTSA ID

10465816

Incident

Jul 5, 2012

Mileage

32,000 mi

I WAS GLIDING INTO A COMMERCIAL PARKING SPACE WITH MY FOOT OFF THE ACCELERATOR IN THE SECOND BEFORE I MOVED MY FOOT ONTO THE BRAKE. SUDDENLY, THE ACCELERATOR PUSHED DOWN BY ITSELF, THE CAR SURGED FORWARD TOWARDS THE TRUCK IN THE SPACE IN FRONT OF MINE. I SLAMMED ON THE BRAKE. END OF INCIDENT. NO MAT WAS IN THE WAY. I HAD TAKEN PART IN THE RECALL. *TR

NHTSA ID

10436712

Incident

Nov 21, 2011

Mileage

23,687 mi

I WAS DRIVING MY 6-MONTH OLD 2009 PRIUS ONE SUMMER DAY ON A DRY, PAVED, SLIGHTLY DOWNWARD INCLINE WHEN THE FOLLOWING PROBLEM OCCURRED. AS I APPROACHED A TRAFFIC CIRCLE AT ABOUT 5 MPH AND THEN APPLIED THE BRAKES, MY CAR JUMPED FORWARD FOR ABOUT A SECOND AND A GOLD LIGHT ON THE DASH WAS BRIEFLY VISIBLE THROUGH MY PERIPHERAL VISION. BECAUSE I WAS FAMILIAR WITH ANTI-LOCK BRAKING SYSTEMS, I THINK THAT I KEPT MY FOOT ON THE BRAKE PEDAL, THOUGH I MAY HAVE REFLEXIVELY RELEASED IT IN MY STARTLE. AT ANY RATE THE CAR STOPPED A FEW FEET LATER. THANKFULLY THERE WAS NO COLLISION, LARGELY DUE, I BELIEVE, TO MY HABIT OF COASTING TO A STOP WHEN PRACTICAL. HOWEVER, THIS WAS A BIT UNNERVING, AND ALSO SINCE IT WAS DURING THE PERIOD OF CONCERN ABOUT TOYOTA PRIUS' UNINTENDED ACCELERATION, I MADE A POINT OF REPORTING IT TO MY CAR DEALER. I COULD NOT IDENTIFY WHICH DASH LIGHT HAD FLASHED FOR A SECOND. THE DEALER'S RESPONSE WAS THAT THERE WAS PROBABLY AN UNEVEN SURFACE ON THE ROAD THAT CAUSED THE PROBLEM. SURE ENOUGH, THERE HAD BEEN BOTH A SHALLOW POTHOLE AND A BIT OF GRAVEL WHERE THE STOPPING PROBLEM OCCURRED. HOWEVER, I TAKE ISSUE WITH TOYOTA'S BLAMING ROAD CONDITIONS FOR THIS PROBLEM WHEN CLEARLY THE PROBLEM IS THAT THE CAR CANNOT RESPOND APPROPRIATELY EVEN DURING VERY SLOW SPEEDS. THE PROBLEM HASN'T RECURRED BECAUSE I AVOIDED THE POTHOLE AFTERWARD AND NEVER HAVE TO STOP ON A DIME, POTHOLE OR NO. I HAVE HAD CARS WITH ANTI-LOCK BRAKING SYSTEMS (ABS) AND NEVER ENCOUNTERED THIS PROBLEM WITH THEM. THEREFORE, IMO TOYOTA NEEDS TO IMPROVE THE ABS OR THE (THEN NEW) STABILITY CONTROL FEATURE ON PRIUSES, BOTH OF WHICH MY CAR HAS. IN ALL OF THE HYPE ABOUT TOYOTA CARS' SUSTAINED UNINTENDED ACCELERATION, I DO NOT REMEMBER THAT THIS OTHER EVENT THAT I HAVE DESCRIBED WAS ALSO BEING ADDRESSED. HOW COME? WHERE ARE NHTSA, NASA, AND TOYOTA ON THIS? *TR

NHTSA ID

10402449

Incident

Jun 12, 2010

Mileage

500 mi

I HAVE A 2009 PRIUS BASE WITH 42K MILES. AFTER PLACING THE VEHICLE IN PARK AND WAITING IN THE VEHICLE, IT SUDDENLY LURCHED FORWARD ABOUT 1 OR 2 INCHES AND WITH ENOUGH FORCE TO SHATTER A LIGHT POST. THIS SEEMS A DANGEROUS FLAW. IT HAPPENS FREQUENTLY; AFTER SPEAKING WITH A REPAIR SHOP, I WAS TOLD THIS IS NORMAL FOR A PRIUS AND IS PART OF THE RECHARGING DESIGN OF THE HYBRID SYSTEM. I WAS ADVISED TO USE THE PARKING BRAKE WHENEVER POSSIBLE. THIS SEEMS DANGEROUS. *TR

NHTSA ID

10369876

Incident

Dec 1, 2010

Mileage

42,600 mi