NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
25 reportsClear category filterMileage unknown · Apr 11, 2007
Engine And Engine CoolingVehicle Speed Control
SEVERAL TIMES WHEN THE ACCELERATOR WAS PRESSED AND THE CAR SLOWED DOWN THE CHECK ENGINE LIGHT CAME ON. VEHICLE WILL DRIVE NORMALLY FOR AWHILE, BUT PROBLEM SEEMED TO OCCUR AT LEAST ONCE EVERY 1-2 YEARS. THE LAST TIME, I SPENT $900 TO REPLACE AN ACCELERATOR SENSOR. THIS TIME, THE DEALERSHIP STATED I NEEDED TO REPLACE THE E…
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SEVERAL TIMES WHEN THE ACCELERATOR WAS PRESSED AND THE CAR SLOWED DOWN THE CHECK ENGINE LIGHT CAME ON. VEHICLE WILL DRIVE NORMALLY FOR AWHILE, BUT PROBLEM SEEMED TO OCCUR AT LEAST ONCE EVERY 1-2 YEARS. THE LAST TIME, I SPENT $900 TO REPLACE AN ACCELERATOR SENSOR. THIS TIME, THE DEALERSHIP STATED I NEEDED TO REPLACE THE ECM, AND THE CATALYTIC CONVERTER FOR A TOTAL CHARGE OF $3500. THERE WERE NO GENERIC CATALYTIC CONVERTERS, THE ONE TO BE USED WAS $1700. ALSO, HAD BEEN SEVERAL INCIDENTS WHERE THERE HAD BEEN ISSUES FOLLOWING AN OIL CHANGE WHERE THE DEALER SAID THAT OIL WAS WHERE IT SHOULDN'T BE.*AK
NHTSA ODI #10187628
50,226 miles · Aug 18, 2006
Unknown Or OtherVehicle Speed Control
EXPERIENCE: DRIVING A 2001 TOYOTA PRIUS BETWEEN 60 AND 65 MPH ON I-494 IN EAGAN MINNESOTA. THE SENSOR ON THE VEHICLE'S ACCELERATOR PEDAL ASSEMBLY FAILED I.E. THE ABILITY TO GET GAS TO THE ENGINE STOPPED. THE CAR WAS TOWED TO AN AUTHORIZED REPAIR DEALER AND THE PART, WHICH FAILED, WAS REPLACED. MY COMPLAINT HAS TWO PARTS: (…
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EXPERIENCE: DRIVING A 2001 TOYOTA PRIUS BETWEEN 60 AND 65 MPH ON I-494 IN EAGAN MINNESOTA. THE SENSOR ON THE VEHICLE'S ACCELERATOR PEDAL ASSEMBLY FAILED I.E. THE ABILITY TO GET GAS TO THE ENGINE STOPPED. THE CAR WAS TOWED TO AN AUTHORIZED REPAIR DEALER AND THE PART, WHICH FAILED, WAS REPLACED. MY COMPLAINT HAS TWO PARTS: (1) TOYOTA DOES NOT RECOGNIZE A CRITICAL PART LIKE THE SENSOR ON THE ACCELERATOR PEDAL ASSEMBLY AS A PART OF MAJOR SIGNIFICANCE. I BELIEVE IT IS MAJOR SAFETY ISSUE AND MUST BE CORRECTED BY TOYOTA. I WAS TOLD BY TOYOTA'S CUSTOMER ASSISTANCE CENTER THE PART WAS NOT DEFECTIVE AND IT FAILED BECAUSE NORMAL USE. I AM APPALLED TO LEARN THAT A 6 YEAR OLD CAR WITH 50,226 MILES IS EQUIPPED WITH ACCELERATOR UNIT WHICH CAN FAIL WHEN THE AVERAGE USE IS 8,371 MILES PER YEAR. I AM ALSO AMAZED THE CUSTOMER SERVICE CENTER IS NOT INTERESTED IN LOOKING AT THIS PERFORMANCE AS A MAJOR DEFECT. THEY TOLD ME THEY HAD NO RECORD OF OTHER INCIDENTS WITH THIS PART. YET WHEN I TALKED TO THE PRIUS SERVICE TEAM SUPERVISOR AT TWO DIFFERENT DEALERSHIPS, I WAS INFORMED BY EACH ONE THEY HAD REPLACED 4 TO 5 OF THEM. IF MY SMALL SURVEY REVEALED THAT NUMBER I CAN ONLY GUESS WHAT A NATIONWIDE SURVEY WOULD REVEAL. 2) IN RESPONSE TO MY ASKING TOYOTA TO REIMBURSE ME FOR THE $810.41 BILL THEIR RESPONSE WAS I SHOULD SUBMIT MY REQUEST FOR REIMBURSEMENT TO MY INSURANCE COMPANY OR TO THE FIRM WHICH OWNS THE CAR. CLEARLY, A SITUATION OF SHIFTING THE RESPONSIBILITY OF MAKING QUALITY OEM PARTS TO A THIRD PARTY TO ABSORB THE COST AND IGNORING THE MAJOR SAFETY IMPLICATIONS CREATED WHEN THE ACCELERATOR STOPS FUNCTIONING IN A VEHICLE DRIVEN LESS THAN THE AVERAGE CAR. *JB
NHTSA ODI #10165986
45,385 miles · Oct 21, 2005
Vehicle Speed Control
(1) NORMAL DRIVING, NO ABNORMALITIES WHATSOEVER (2) AT FREEWAY SPEED, IN BUSY TRAFFIC, WITHOUT WARNING: THE CAR LOST ALL MOTIVE POWER (NEITHER GAS NOR ELECTRIC WORKING); THE HYBRID SYSTEM WARNING ICON DISPLAYED ON THE MULTI-FUNCTION DISPLAY. LUCKILY, IN BOTH INSTANCES, WE WERE ABLE TO MOVE TO THE SHOULDER WHILE DECELERATING.…
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(1) NORMAL DRIVING, NO ABNORMALITIES WHATSOEVER (2) AT FREEWAY SPEED, IN BUSY TRAFFIC, WITHOUT WARNING: THE CAR LOST ALL MOTIVE POWER (NEITHER GAS NOR ELECTRIC WORKING); THE HYBRID SYSTEM WARNING ICON DISPLAYED ON THE MULTI-FUNCTION DISPLAY. LUCKILY, IN BOTH INSTANCES, WE WERE ABLE TO MOVE TO THE SHOULDER WHILE DECELERATING. AFTER COMING TO A COMPLETE STOP, WE REFERRED TO THE OWNER'S MANUAL WHICH SUGGESTED TURNING THE IGNITION KEY COMPLETELY OFF AND THEN ATTEMPTING A RESTART. IN BOTH CASES THE CAR STARTED UP AGAIN AND WAS DRIVABLE (ALTHOUGH IN THE FIRST CASE THE WARNING ICON REMAINED DISPLAYED FOR APPROXIMATELY 10 MILES). (3) TOOK CAR TO TOYOTA DEALER WHO VERIFIED FAILURE CODE(S) STORED IN ONBOARD MEMORY; DEALER REPLACED ACCELERATOR PEDAL/POSITION SENSOR ASSEMBLY. *JB
NHTSA ODI #10140482
60,500 miles · Oct 15, 2005
Vehicle Speed Control
2001 TOYOTA PRIUS: ACCELERATOR SENSOR FAILURE FOR SEVERAL WEEKS LEADING UP TO THE FAILURE, THERE WAS A SLIGHT (BUT DEFINITE) SENSATION OF DECELERATION WHEN TRYING TO MAINTAIN STEADY SPEED. AT THE TIME OF FAILURE, THE VEHICLE HESITATED/STALLED AND THE "MASTER WARNING LIGHT" CAME ON. LOCAL DEALER (355 TOYOTA, ROCKVILLE, MD) REPLA…
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2001 TOYOTA PRIUS: ACCELERATOR SENSOR FAILURE FOR SEVERAL WEEKS LEADING UP TO THE FAILURE, THERE WAS A SLIGHT (BUT DEFINITE) SENSATION OF DECELERATION WHEN TRYING TO MAINTAIN STEADY SPEED. AT THE TIME OF FAILURE, THE VEHICLE HESITATED/STALLED AND THE "MASTER WARNING LIGHT" CAME ON. LOCAL DEALER (355 TOYOTA, ROCKVILLE, MD) REPLACED THE PART AT A COST OF $700.00. SHOULD A PART THIS EXPENSIVE (AND SO CRITICAL TO VEHICLE FUNCTION) BE FAILING AT 4 YEARS? *NM
NHTSA ODI #10139771
74,000 miles · Aug 31, 2005
Electrical SystemVehicle Speed ControlCrash
DT: VEHICLE STALLED/DIED, AND LOST POWER WHILE DRIVING 5 MPH. THROTTLE BODY MODULE FAILED. THERE WAS A NHTSA RECALL BUT THIS INVOLVED A CHEMICAL IN THE PRUIS CAR BATTERY.*AK L. YES. CAR HAS BROKE DOWN SEVERAL TIMES SINCE. THE STALLING IS STILL A PROBLEM.
NHTSA ODI #10134923
Mileage unknown · Aug 1, 2005
Vehicle Speed Control
DT: CONTACT STATES WHILE DRIVING THE VEHICLE STOPPED. THE ACCELERATOR PEDAL WAS REPLACED. *AK *JB
NHTSA ODI #10125783
55,000 miles · Jun 2, 2005
Vehicle Speed Control
I OWN A 2001 TOYOTA PRIUS. SEVERAL TIMES IN THE LAST FEW MONTHS I HAVE EXPERIENCED A LOSS OF POWER COMBINED WITH MY DASH WARNING LIGHTS. I HAD ONE SIMILAR INCIDENT LAST YEAR. THE DEALERSHIP CLAIMS THEIR DIAGNOSTICS FIND NO PROBLEM (NO CODES = NO PROBLEM). THEREFORE NOTHING IS RESOLVED AND THE CAR REMAINS PRONE TO LOSS OF POWER, …
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I OWN A 2001 TOYOTA PRIUS. SEVERAL TIMES IN THE LAST FEW MONTHS I HAVE EXPERIENCED A LOSS OF POWER COMBINED WITH MY DASH WARNING LIGHTS. I HAD ONE SIMILAR INCIDENT LAST YEAR. THE DEALERSHIP CLAIMS THEIR DIAGNOSTICS FIND NO PROBLEM (NO CODES = NO PROBLEM). THEREFORE NOTHING IS RESOLVED AND THE CAR REMAINS PRONE TO LOSS OF POWER, A DANGEROUS CONDITION WHEN TRAVELING ON ANY FREEWAY.
NHTSA ODI #10123954
Mileage unknown · May 19, 2005
Vehicle Speed Control
GOING AT HIGHWAY SPEED, CAR SUDDENLY LOST POWER, SLOWED DOWN TO A MAX. SPEED OF 37 MPH, RUNNING MOSTLY ON ELECTRICAL POWER. MASTER WARNING LIGHT (TRIANGLE WITH EXCALMATION POINT) LIT UP. GAS ENGINE WOULD PERIODICALLY START UP, BUT WAS NOT RESPONDING TO ACCELLERATOR PEDAL. AFTER PULLING OVER AND SHUTTING DOWN VEHICLE, I WAS ABLE…
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GOING AT HIGHWAY SPEED, CAR SUDDENLY LOST POWER, SLOWED DOWN TO A MAX. SPEED OF 37 MPH, RUNNING MOSTLY ON ELECTRICAL POWER. MASTER WARNING LIGHT (TRIANGLE WITH EXCALMATION POINT) LIT UP. GAS ENGINE WOULD PERIODICALLY START UP, BUT WAS NOT RESPONDING TO ACCELLERATOR PEDAL. AFTER PULLING OVER AND SHUTTING DOWN VEHICLE, I WAS ABLE TO RESTART AND CONTINUE NORMALLY.
NHTSA ODI #10121390
37,700 miles · May 18, 2005
Engine And Engine CoolingFuel System, GasolineVehicle Speed Control
PROBLEMS STARTED IN NOVEMBER 2003. HAD OIL CHANGED AND AN HOUR LATER ALL THE WARNING LIGHTS CAME ON IN THE VEHICLE. IMMEDIATELY RETURNED TO THE DEALERSHIP WHERE IT TOOK 2 WEEKS TO REPLACE THE FUEL PUMP (37,000 MILES). SINCE THEN THE CAR HAS BEEN BACK TO THE DEALERSHIP AN ADDITIONAL 9 TIMES TO THE CURRENT DATE (MAY 2005) FOR S…
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PROBLEMS STARTED IN NOVEMBER 2003. HAD OIL CHANGED AND AN HOUR LATER ALL THE WARNING LIGHTS CAME ON IN THE VEHICLE. IMMEDIATELY RETURNED TO THE DEALERSHIP WHERE IT TOOK 2 WEEKS TO REPLACE THE FUEL PUMP (37,000 MILES). SINCE THEN THE CAR HAS BEEN BACK TO THE DEALERSHIP AN ADDITIONAL 9 TIMES TO THE CURRENT DATE (MAY 2005) FOR SEVERAL DIFFERENT THINGS. THE COMPUTER HAS BEEN REPLACED TWO TIMES. THE ENGINE HAS BEEN REPLACED. THE INJECTORS CLEANED, THEN A FEW MONTHS LATER HAD TO BE COMPLETELY REPLACED. THE THROTTLE BODY HAS BEEN REPLACED. I HAVE BEEN DRIVING THE CAR WHEN IT WOULD NOT ACELERATE AND HAD TO PULL OVER IN TRAFFIC. THE FIRST TIME THE DEALERSHIP SAID THERE WERE NO WARNING LIGHTS WHEN THE CAR GOT TO THE DEALERSHIP AND THEY COULD NOT RECREATE THE CODES OR SITUATION SO THEY COULD NOT DO ANYTHING. THE SECOND TIME (APRIL 2005) ALL FOUR INJECTORS WERE REPLACED AS WELL AS THE MASS AIR FLOW SYSTEM. THE CAR HAS BEEN IN THE SERVICE DEPARTMENT AT OUR TOYOTA DEALERSHIP FOR A TOTAL OF 17 TIMES SINCE THE CAR ARRIVED AT APPROXIMATELY 180 DAYS!!! 10 OF THOSE 17 TIMES HAS BEEN BECAUSE THE WARNING LIGHTS HAVE COME ON. HAVE ENTERED INTO ARBITRATION AND WE ARE AWAITING AN ANSWER ON THE DECISION.
NHTSA ODI #10121362
45,000 miles · May 17, 2005
Vehicle Speed Control
2001 TOYOTA PRIUS-SUDDEN DROP IN SPEED-COULD NOT EXCEED 17 MPH. DANGEROUS IN TRAFFIC TOYOTA REPLACED COMPUTER-OLD PARTS NOT AVAILABLE INCIDENT DATE IS APPROXIMATE-TOOK 2 1/2 MONTHS TO REPAIR
NHTSA ODI #10121229