2000 Toyota Sienna Cruise Control Problems

Your engine RPM is jumping to around 2,000 and staying high whenever you tap the gas pedal while stopped in Drive, causing the vehicle to pull forward strongly even with the brakes applied. In some cases, the engine has revved over 4,000 RPM and the brakes couldn't hold the vehicle, requiring you to turn off the engine to stop it. This only happens when the car is in gear, not in Park, and you've already ruled out a sticky gas pedal, floor mats, throttle body, and throttle position sensor issues. The problem likely involves the engine control computer (ECM) or related fuel injection system components that need professional diagnosis and possible replacement.

Your van suddenly accelerated on its own while driving at 40 mph, and the brakes were unable to slow it below 25 mph even when fully pressed. Pressing the cruise control button had no effect, and putting the van in neutral caused the engine to rev to 7000 rpm. Only by turning off the engine were the brakes able to stop the vehicle. When you restarted it, the engine revved again to 7000 rpm. A mechanic will need to diagnose whether this is a fuel delivery issue, throttle control problem, or brake system failure.

Your vehicle experienced unintended acceleration at various speeds while driving. An independent mechanic was unable to identify the cause of the problem. Diagnosing unintended acceleration typically involves checking the throttle control system, fuel delivery components, and engine control electronics.

While parking on a downhill slope with your foot fully on the brake, your engine suddenly accelerated to full throttle without warning. You were able to stop the vehicle just 2 feet before hitting a school wall by applying maximum brake pressure and shifting out of gear. You checked the floor mat and throttle pedal area afterward and found no obstructions or interference. The underlying cause of the unexpected throttle surge will need to be diagnosed by a mechanic, likely involving inspection of the throttle control system and engine management components.

Your vehicle unexpectedly revs up and accelerates to 60 mph on its own when you start it, and it also independently accelerates when you try to accelerate from a stop. This unintended acceleration happened around 200,000 miles and hasn't been diagnosed or repaired yet. You should have a mechanic inspect your throttle cable, throttle body, and cruise control system to identify what's causing the vehicle to accelerate without your input.

Your vehicle suddenly accelerated to a high speed on its own while you were driving, causing you to lose control and crash into a wall. Both front airbags deployed, and you sustained serious injuries to your knee and chest that required medical attention. This sudden acceleration issue typically involves inspection and potential repair of the throttle control system, fuel injectors, or engine control computer.

Your car has accelerated on its own several times without you pressing the gas pedal. This happened at around 226,000 miles. The vehicle hasn't been diagnosed or repaired yet. The fix will likely involve inspection of the throttle control system, fuel injectors, and engine computer to identify what's causing the unintended acceleration.

Your car unexpectedly accelerated on its own while driving at about 30 mph, causing a jerky stop-and-go motion every time the vehicle moved. You had to shift into Neutral to bring it to a complete stop. This issue has not been diagnosed or repaired.

IN SUMMER OF 2000, I HAD AN ACCIDENT IN A 99 TOYOTA SIENNA AND MY ACCELERATOR STUCK CAUSING ME TO HAVE TO PUT THE CAR IN REVERSE TO STOP FORWARD MOTION AFTER IMPACT. I REPORTED THE STUCK ACCELERATOR TO DEALER, AND STATE FARM. MY CAR WAS TOTALED. THE ACCIDENT OCCURRED AT AN INTERSECTION AND ANOTHER DRIVER HIT ME FROM THE RIGHT - HE RAN A RED LIGHT AND WAS CITED AS AT FAULT, BUT AFTER THE IMPACT, MY CAR CONTINUED TO GO FORWARD AND ALTHOUGH I HAD MY FOOT ON MY BRAKE ALL THE WAY TO THE FLOOR THE CAR WOULD NOT STOP. I HAD MY TWO YOUNG CHILDREN IN THE CAR WHO WERE SCREAMING IN FEAR AND PAIN, AND THERE WERE TWO ROWS OF CARS IN EVERY DIRECTION STOPPED AT THE INTERSECTION. I LOOKED AT A CONCRETE PILLAR IN A PARKING LOT AND THOUGHT ABOUT RUNNING MY CAR INTO IT TO STOP. INSTEAD, I REACHED FOR THE GEARS AND TRIED TO SHIFT TO PARK. IT WENT INTO REVERSE, AND BY SOME TRUE MIRACLE, I WAS ABLE TO MISS ALL THE SITTING TRAFFIC AND STEER INTO A CHAIN LINK FENCE. BY YET ANOTHER MIRACLE, THERE WAS ONLY ONE SPOT ON THE FENCE THAT WAS NOT TREE LINED. I BACKED BETWEEN TWO TREES INTO THE FENCE AND THAT STOPPED MY CAR, WHICH I LEFT RUNNING AS I GOT MY TWO CHILDREN OUT. A BYSTANDER WAS ABLE TO REACH IN AND REMOVE THE KEYS AND STOP THE CAR. THE FENCE BELONGED TO A CATHOLIC CHURCH WHICH LATER SENT A BILL TO MY INSURANCE COMPANY FOR THE DAMAGE. THIS OCCURRED IN MEMPHIS, TN, AND I HAVE ALWAYS BEEN SURE THAT THE ACCELATOR WAS STUCK IN THAT INCIDENT. I WAS TOLD TO REPORT IT TO THE NTHSA, BUT FRANKLY, THOUGHT THAT SOUNDED LIKE REDTAPE. I DON'T THINK THE TOYOTA PROBLEM IS MECHANICAL OR RECENT, BUT A MASSIVE, LONG-STANDING COMPUTER-BASED ISSUE COVER-UP AND TOYOTA DRIVERS SHOULD BE COMPENSATED BY COMPANY. *TR

WHILE DRIVING ON TOLLWAY IN OUR 2000 SIENNA WITH CRUISE SET TO 70 MPH I PUSHED THE ACCELERATOR A LITTLE TO INCREASE SPEED A FEW MPH. IT INSTANTLY TOOK OFF AS IF I HAD HIT THE "RESUME" ON THE CRUISE CONTROL (CC) AND HAD IT SET FOR 120 MPH. AFTER A FEW SECONDS OF PANIC I HIT THE BRAKES TO SLOW THE VAN AND RELEASE THE CC. NO LUCK. WITH NO TRAFFIC NEAR ME I LOOKED TO SEE IF THE ACC. PEDAL WAS STUCK, FLOOR MAT WAS INTERFERING, OR SOMETHING ELSE HOLDING THE PEDAL DOWN - NOTHING WAS. I TURNED OFF THE CC, PUMPED THE ACCELERATOR PEDAL, STOMPED ON THE BRAKES AND WAS JUST ABOUT TO PUT VAN IN NEUTRAL WHEN WE WENT BACK TO NORMAL CONTROL. WE TOOK VAN TO TOYOTA DEALER NEXT DAY, BUT THEY COULD FIND NOTHING WRONG. THEY CALLED TOYOTA AND WERE TOLD IT WAS NOT A KNOWN PROBLEM, SO NO FIX. WE STILL DRIVE IT DAILY, BUT DO NOT USE THE CC IN TRAFFIC, OR ACCELERATE WITH THE CC ON. THIS WAS NOT A STUCK PEDAL, NOR A FLOOR MAT PROBLEM. BECAUSE WE HAVE NOT USED THE CC IN THE SAME MANNER AS WHEN THE SUDDEN ACCELERATION HAPPENED, I WOULD THINK IT IS CC RELATED. *TR

WHILE TRAVELING 50 MPH SUDDENLY THE VEHICLE ACCELERATED TO 80 MPH, RESULTING IN A CRASH AND A ROLL OVER. THE CONSUMER WAS NOT INJURED IN THE COLLISION. *AK *SC *JB

THE VEHICLE ACCELERATED WHILE DRIVING IN THE NEIGHBORHOOD. THE BRAKE WAS ON, AND THE VEHICLE WENT TO 40 MPH. CONSUMER WAS ABLE TO STOP BY SHIFTING INTO PARK, APPLYING THE EMERGENCY BRAKE, AND TURNING THE KEY OFF.*AK

THERE WAS A SUDDEN DECREASE IN ACCELERATION WHILE IN CRUISE CONTROL, AND AN UNUSUAL NOISE.*AK

WHEN DRIVING AT HIGHWAY SPEED AND UPON ACCLERATION VEHICLE LOSES ALL POWER MAKING IT VERY DIFFICULT TO OPERATE VEHICLE, ALSO, VEHICLE HAS CUT OFF IN THE MIDDLE OF ONCOMING TRAFFIC. CONSUMER HAS CONTACTED THE DEALER. PLEASE PROVIDE ANY FURTHER DETAILS.*AK