2002 Toyota Prius Cruise Control Problems

While driving at low speed on a familiar street, you applied the brakes to stop for a car ahead, but your Prius accelerated instead of slowing down. Even with increased brake pressure, the car continued accelerating to about 30 mph and collided with the other vehicle's front fender and bumper. You were eventually able to stop the car after passing the struck vehicle. This suggests a potential problem with the brake system or the interaction between the brakes and the hybrid electric motor that needs professional diagnosis to determine the root cause.

TL* THE CONTACT OWNS A 2002 TOYOTA PRIUS. THE CONTACT STATED THAT WHILE PARKING, THE VEHICLE INDECENTLY ACCELERATED TO 115 MPH. THE CONTACT APPLIED THE BRAKES AND SHIFTED INTO NEUTRAL IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER HOWEVER, THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 106,000.

TL*THE CONTACT OWNS A 2002 TOYOTA PRIUS. WHILE DRIVING 10 MPH THE RPM'S INCREASED EXCESSIVELY CAUSING THE VEHICLE TO ACCELERATE AND CRASH INTO A BUILDING. THE VEHICLE WAS DESTROYED AND NO ONE WAS INJURED. THE CONTACT STATED THAT THE BRAKES FAILED TO STOP THE VEHICLE. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE CONTACT IS CONCERNED THAT THE LATE MODEL TOYOTAS HAVE NOT BEEN INVESTIGATED REGARDING THE ACCELERATION. THE FAILURE MILEAGE WAS UNKNOWN. JO

I DRIVE A USED 2002 TOYOTA PRIUS, WHICH NOW HAS ABOUT 86,000 MILES ON IT. IN NOVEMBER 2009 I WAS PARKING WHEN THE CAR SPONTANEOUSLY ACCELERATED. MY SPEED WAS LESS THAN 2MPH, MY FOOT WAS CONTINUOUSLY ON THE BRAKE WHILE EASING INTO THE PARKING SPACE, PRIOR TO THE UNCONTROLLABLE ACCELERATION. SUDDENLY WITHOUT WARNING I HEARD THE ENGINE RACE AND THE CAR BOLTED FORWARD, UNRESPONSIVE TO MY BRAKING. I ONLY STOPPED WHEN MY CAR COLLIDED HEAD ON WITH A PARKED CAR, WHICH WAS MOVED ABOUT TWO FEET BY OUR COLLISION. IT HAPPENED TOO FAST TO EVEN THINK OF CHANGING GEAR INTO NEUTRAL, BECAUSE I WAS ONLY 5 FEET FROM THE OTHER CAR WHEN THE SPONTANEOUS ACCELERATION OCCURRED. AFTER THE ACCIDENT I LOOKED FOR CAUSE AND I DETERMINED THAT NO OBJECT IN THE CAB HAD ACCIDENTALLY PUSHED THE ACCELERATOR PEDAL, INCLUDING THE FLOOR MAT. I BELIEVE THAT BECAUSE OF THE SMALL NUMBER OF DRIVERS EXPERIENCING UNCONTROLLABLE ACCELERATION OUT OF THE MILLIONS OF TOYOTAS SOLD, THAT THE PHENOMENON IS CAUSED BY TWO OR MORE INDEPENDENT ERRORS IN THE VEHICLE ELECTRONICS, OCCURRING UNFORTUNATELY AT THE SAME TIME. THE CONFLUENCE OF TWO UNLIKELY EVENTS HAS EVEN SMALLER PROBABILITY, THEREFORE FEW OCCURRENCES. FOR EXAMPLE IF THE CRUISE CONTROL FAILED TO DISENGAGE AND ALSO THERE WAS A SIGNIFICANT DELAY IN THE SIGNAL FROM BRAKE PEDAL TO BRAKE DRUMS, THE COMBINATION COULD BE TRAGIC. THE TOYOTA PRIUS 2002 MODEL WHICH I DRIVE HAS NOT BEEN RECALLED; HOWEVER SINCE THE ACCIDENT I HAVE BEEN EVER ON THE ALERT, PREPARED TO GEAR INTO NEUTRAL. EVEN THIS VIGILANCE WILL NOT PROVIDE SAFETY IF THE DISTANCE BETWEEN MY CAR AND AN OBSTACLE OR CREVASSE IS SHORT WHEN THE FLAW SURFACES AGAIN; GIVEN THE FINITE SPEED OF HUMAN NERVOUS TRANSMISSION, THE CAR'S SUDDEN, UNCONTROLLABLE ACCELERATION NEEDS TO BE INVESTIGATED. *CN

2002 PRIUS SUDDENLY SPEEDED UP JUST BEFORE I GOT TO WAIST HIGH BACK DECK OF OUR HOUSE. I HIT THE CLIP ON SUNVISOR. HAD 25 STITCHES IN SCALP. HAVE NOT SEEN THIS MODEL IN RECALL. CAR WAS TOTALED. DID NOT HAVE ON SEATBELT AS I WAS ONLY GETTING THE PAPER AT THE END OF LONG DRIVEWAY EARLY IN THE AM.*JB

I HAD JUST LEFT ONE AREA OF A PARKING LOT AND WAS TRAVELING TO ANOTHER AT A LOW RATE OF SPEED (5 TO 15 MPH) SO MY 2002 TOYOTA PRIUS WAS RUNNING UNDER ELECTRICAL POWER. I TURNED RIGHT TO PULL INTO A PARKING SPACE BETWEEN TWO SUVS, COASTING IN WITH MY FOOT OVER THE BREAK PEDAL. WHEN I WAS MORE THAN HALFWAY INTO THE PARKING SPACE, THE CAR SUDDENLY SHOT FORWARD JUMPING THE CURB AND STOPPING ONLY WHEN IT HIT A STONE PILLAR. WHEN I LOOKED DOWN (AFTER CHECKING TO SEE IF MY 13 YEAR OLD SON WAS ALRIGHT, I SAW THAT MY FOOT WAS ON THE BRAKE PEDAL. FORTUNATELY NO PEDESTRIAN WAS IN THE WALKWAY, AND I DID NOT HIT THE SUV TO MY RIGHT OR LEFT. HOWEVER, THE UNEXPECTED ACCELERATION WAS NOT A RESULT OF PRESSING ON THE GAS PEDAL. *JB