2014 Toyota Sienna Driver assistance Problems

The contact owns a 2014 Toyota Sienna. The contact stated that while driving at various speeds the vehicle had experienced unintended acceleration. During the failure the driver forcely pressed the brake pedal to stop the vehicle. The contact indicated that the failure had once occurred while a transporting a Uber passenger. The cause of the failure was not determined. The manufacturer and local dealer were not contacted. The failure mileage was 120,000.

NHTSA ID

11736476

Incident

Jan 5, 2024

Mileage

120,000 mi

Great coaching

NHTSA ID

11483120

Incident

Sep 6, 2022

Good question

NHTSA ID

11483116

Incident

Sep 6, 2022

The contact owns a 2014 Toyota Sienna. The contact stated while attempting to drive there was an idling issue while attempting to make a turn while accelerating. There was no warning light illuminated. The contact also stated that there was a traction control failure. Additionally, the vehicle failed to accelerate while entering the highway. The failure had been consistent for several years. The vehicle was taken to the dealer to be diagnosed; however, the mechanic was unable to replicate the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 94,000.

NHTSA ID

11481733

Incident

Aug 15, 2022

Mileage

94,000 mi

3 TIMES THIS YEAR, WHEN SLOWING TO A STOP WITH MY FOOT ON THE BRAKE, THE CAR SUDDENLY ACCELERATED, REQUIRING ME TO APPLY AS MUCH BRAKE PEDAL PRESSURE AS I COULD, AS WELL AS SHIFTING TO NEUTRAL TO STOP THE CAR. THIS HAS OCCURRED ONCE WHEN COMING UP TO A STOP SIGN, AND TWICE WHILE PULLING INTO A PARKING SPACE. BOTH TIMES WHEN PULLING INTO THE PARKING SPACE, I WAS BARELY ABLE TO STOP IN TIME, ALMOST HITTING A CAR IN THE SPACE IN FRONT OF ME. AFTER THE LAST TIME THIS OCCURRED (7/3/2020), THE CAR WAS TAKEN TO ST. CHARLES TOYOTA ON 7/6, WHERE THEY FOUND NOTHING WRONG WITH THE VEHICLE. THIS STARTED JUST THIS YEAR; THE VEHICLE HAS APPROX. 70,000 MILES ON IT. WE HAVE OWNED THE VEHICLE SINCE NEW - IT DID NOT DO THIS FOR THE FIRST 4.5 YEARS OF SERVICE.

NHTSA ID

11337754

Incident

Jul 3, 2020

Mileage

70,000 mi

TL* THE CONTACT OWNS A 2014 TOYOTA SIENNA. WHILE DRIVING 15 MPH THE BRAKE PEDAL WAS APPLIED HOWEVER DEPRESSED TO THE FLOORBOARD, THE VEHICLE ACCELERATED AND SURGE FORWARD WITHOUT WARNING. THE CONTACT SHIFTED INTO NEUTRAL AND TURNED THE IGNITION TO THE OFF POSITION. THE VEHICLE WAS TOWED TO ROMANO TOYOTA 6400 BASILE ROWE, EAST SYRACUSE, NY 13057(315) 445-1070, WHERE THE CONTACT WAS INFORMED THAT THE VEHICLE OPERATED AS DESIGNED. THE VEHICLE WAS DIAGNOSED BUT NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 78,929. *BF*JB

NHTSA ID

11311383

Incident

Jan 28, 2020

Mileage

78,929 mi

JUST BEFORE THE VEHICLE COMES TO A FULL STOP, THERE IS UNINTENDED ACCELERATION AND I COULD SEE EVEN THE RPM(SCALE) TO SPIKE TEMPORARILY. THIS HAS BEEN HAPPENING EVERY TIME WHEN OUTSIDE TEMP IS COLD AND VEHICLE IS DRIVEN WITH COLD OR SLIGHTLY ABOVE COLD ENGINE TEMPERATURE. THERE IS A RISK OF HITTING ANOTHER VEHICLE OR MEETING ACCIDENT IF MISJUDGE MY BRAKING BECAUSE OF THIS PROBLEM. HOWEVER IT DOES IT EVEN ON HIGHWAY UNDER NORMAL TEMPERATURE WHILE I'M BRAKING OR SLOWING DOWN.

NHTSA ID

11309306

Incident

Feb 14, 2020

Mileage

90,983 mi

CAR ACCELERATES WHEN TRYING TO STOP/ PRESSING BREAKS

NHTSA ID

11299172

Incident

Jan 1, 2020

I PURCHASED A 2014 TOYOTA SIENNA ON JULY 4TH 2017. SINCE THE DAY I PURCHASED THE VEHICLE I HAVE BEEN HAVING ELECTRICAL PROBLEMS WITH BOTH SLIDING DOORS AND THE TRUNK. TOYOTA STILL HAVEN'T FIXED THE PROBLEMS WITH THE DOORS I JUST DON'T FEE SAFE HAVING MY KIDS AND OTHER PEOPLE KIDS IN THE CAR

NHTSA ID

11185032

Incident

Jul 4, 2017

ON THE EVENING OF OCTOBER 7, 2018 THE DRIVER'S SIDE SLIDING DOOR MADE A CLICKING & POPPING SOUND AS IF THE AUTOMATIC OPEN HAD BEEN ACTIVATED. THE KEYS WERE IN THE IGNITION AND IN THE ACC POSITION. THE NOISE CONTINUED AFTER THE CAR WAS STARTED AND IN THE 30 MINUTE DRIVE HOME I HEARD THE NOISE 2-3 MORE TIMES. MAX SPEED WITH THIS INCIDENT WAS 40MPH. THIS MORNING (OCTOBER 8, 2018), I HAD JUST DROPPED OFF MY KIDS AT SCHOOL AND I WAS THE ONLY PERSON IN THE CAR. THE SAME DOOR THAT MADE THE SOUNDS OPENED WHILE THE CAR WAS IN MOTION (ALL DOORS WERE LOCKED). I STOPPED THE CAR AND TRIED TO SHUT IT, BUT IT WAS JAMMED AND WOULDN'T CLOSE 100%. I TURNED OFF THE AUTOMATIC DOORS THINKING THIS WOULD PREVENT THE DOOR FROM OPENING AGAIN, THEN CONTINUED TO DRIVE SLOWLY, AS I WAS ONLY A FEW BLOCKS FROM HOME. LESS THAN A MINUTE LATER, THE DOOR OPENED AGAIN AND THIS TIME IT WAS VERY FAST DUE TO THE AUTO DOOR BEING TURNED OFF. ONCE AGAIN I TRIED TO CLOSE IT, AND WAS WITHOUT SUCCESS. I CHECKED OUT THE REAR OF THE DOOR AND NOTICED THAT THE LATCH WAS CLOSED. I MANAGED TO GET IT OPEN ENOUGH TO CATCH WHEN ATTEMPTING TO CLOSE IT, WHICH WORKED, BUT THE DOOR WAS NOT CLOSED SECURELY. I GOT HOME SAFELY AND WAS ABLE TO COMPLETELY CLOSE THE DOOR. FAST FORWARD TO THIS AFTERNOON: I START THE CAR AND ALTHOUGH AUTOMATIC DOORS HAVE BEEN TURNED OFF, THE DOOR IS CLICKING/POPPING AS IF TRYING TO OPEN. THE NOISE STOPPED WITHOUT ANY INTERVENTION FROM ME. AS OF THIS MOMENT (AFTERNOON OF 10/08/2018) NO OTHER INCIDENT HAS OCCURRED. THE CLICKING/POPPING SOUNDS OCCURRED BOTH WHILE STATIONARY AND DRIVING ON CITY STREETS. THE DOOR OPENING OCCURRED WHILE IN MOTION ON CITY STREETS TRAVELING APPROXIMATELY 25MPH.

NHTSA ID

11139072

Incident

Oct 8, 2018

Mileage

97,600 mi

WHEN TRAVELING ON DRY, FLAT HIGHWAY AT APPROX 60 MPH OR AROUND SLIGHT CURVES, TRACTION CONTROL ENGAGES INTERMITTENTLY. WHEN THIS HAPPENS, LIGHT ON DASH ILLUMINATES, BEEPS ARE HEARD AND VAN MAY SWERVE.

NHTSA ID

10992039

Incident

May 27, 2017

Mileage

137,000 mi

LOSS OF ACCELERATION AFTER BRAKING. VEHICLE WILL CEASE RESPONDING TO THE ACCELERATOR PEDAL AFTER BRAKING, WILL CONTINUE TO GO SLOWLY (~20 MPH) FOR 3-5 SECONDS, THEN ACCELARATION WILL RESUME. HAPPENS AT ANY TIME IN ANY SITUATION; BRAKES JUST HAVE TO BE TAPPED TO LOSE ACCELERATION, HAS BEEN HAPPENING SINCE VEHICLE NEW.

NHTSA ID

10926499

Incident

Nov 15, 2016

Mileage

30,000 mi

MY 2004 TOYOTA SIENNA HAS PROBLEMS WITH THE VSC TAKING OVER THE VEHICLE AT DIFFERENT TIMES AND THERE IS NO PROBLEM. IT SLOWS YOU DOWN FAST AND YOU HAVE NO CONTROL. BELLS RING AND LIGHTS FLASH, THEN IT WILL FINALLY GO OFF. IT IS VERY DANGEROUS. I HAVE READ FORUMS OF OTHER PEOPLE HAVING THE SAME PROBLEM. SOME SAY TOYOTA FIXED IT FOR FREE. OTHERS SAY DEALERS WANT OVER $800. TO FIX IT. SOME SAY IT IS A SENSOR ISSUE. OTHERS SAY A NEW SENSOR DID NOT FIX THE PROBLEM. OTHERS SAY IF THE TIRE SENSORS ARE NOT ZEROED OUT AFTER NEW TIRES ARE INSTALLED OR IF YOU HAVE TO CHANGE A TIRE OR GET THEM ROTATED THIS COULD BE THE PROBLEM. IT IS A VERY DANGEROUS ISSUE AND TOYOTA IS AWARE OF THIS BUT WILL NOT DO A RECALL. SOMEONE IS GOING TO GET KILLED OR MAIMED IF THEY HAVE NOT ALREADY. TOYOTA NEEDS TO RECALL AND FIX THESE PROBLEMS AND NOT HAVE DANGEROUS VANS ON THE ROAD. THEY NEED TO CHECK THE VANS FOR EACH PROBLEM BECAUSE MANY PEOPLE HAVE THIS PROBLEM AND WHILE LINKED TO THE VSC ,THE PROBLEMS ARE NOT ALWAYS EXACTLY THE SAME. SOME HAVE MORE DANGEROUS PROBLEMS AND MORE FREQUENT PROBLEMS. THANK YOU.

NHTSA ID

10747210

Incident

Jan 1, 2015

Mileage

180,000 mi

ON SATURDAY, JUNE 6, 2015, MY 2014 TOYOTA SIENNA LIMITED AUTOMATICALLY BRAKE WITH VERY SIGNIFICANT FORCE WHILE THE CRUISE CONTROL WAS ENGAGED AT APPROXIMATELY 45 MPH. NO VEHICLES OR OBSTACLES WERE AHEAD AND I WAS DRIVING ON A STRAIGHT AND RELATIVELY LEVEL STREET THAT HAS A 45 MPH SPEED LIMIT. THIS PROBLEM ALSO OCCURRED MANY, MANY TIMES IN THE FIRST SEVERAL MONTHS AFTER PURCHASING THIS VEHICLE NEW IN APRIL 2014. I REPORTED THIS PROBLEM TO MOLLE TOYOTA, KANSAS CITY, MISSOURI WHEN IT FIRST HAPPENED AND AT THE 5,000 AND 10,000 SERVICES AND THEY COULD FIND NO PROBLEMS WITH THE ADAPTIVE CRUISE CONTROL SYSTEM. DURING THE FIRST FEW MONTHS OF OWNERSHIP I TRIED DRIVING TO THE MOLLE TOYOTA DEALERSHIP WHEN THE PROBLEM OCCURRED AND THE DEALERSHIP WAS OPEN BUT EACH TIME THE PROBLEM STOPPED HAPPENING BEFORE I GOT TO THE DEALERSHIP. THE PROBLEM USUALLY HAPPENS "OUT OF THE BLUE" AFTER I HAVE BEEN DRIVING FOR A WHILE. ONCE THE PROBLEM FIRST OCCURS, IT THEN HAPPENS OVER AND OVER EACH TIME I REENGAGE THE CRUISE CONTROL. STOPPING THE VEHICLE AND RESTARTING THE ENGINE ALMOST ALWAYS STOPS THE PROBLEM FROM RECURRING. AND AS I INDICATED ABOVE, SOMETIMES THE PROBLEM WILL STOP ON ITS OWN WITHOUT RESTARTING THE ENGINE. I AM SUBMITTING THIS COMPLAINT AT THIS TIME AFTER SEEING IN THE NEWS THAT THERE HAVE BEEN SIMILAR COMPLAINTS ON JEEPS. THE JUNE 6 INCIDENT WAS ALSO MUCH WORSE THAN PREVIOUS INCIDENTS DUE TO ANOTHER CAR FOLLOWING VERY CLOSELY BEHIND ME WHEN THE SIENNA BRAKES AUTOMATICALLY SLAMMED ON. I WAS ALSO CONCERNED THAT THE DRIVER BEHIND ME MIGHT HAVE THOUGHT THAT I HAD BRAKED HARD ON PURPOSE. I HAVE BEEN ABLE TO COPE WITH THIS PROBLEM BUT MY MAIN CONCERN IS WITH ALLOWING OTHERS TO DRIVE THE SIENNA AND THAT THEY MAY NOT BE ABLE TO QUICKLY TURN THE CRUISE CONTROL OFF WHEN THE PROBLEM HAPPENS. *TR

NHTSA ID

10724247

Incident

Jun 6, 2015

Mileage

19,100 mi

2014 TOYOTA SIENNA. CONSUMER WRITES IN REGARDS TO ACCELERATOR PEDAL & SURE GRIP BRAND HAND CONTROLS. *SMD THE CONSUMER STATED WHILE DRIVING, THE ENGINE REPEATEDLY RACED. ALSO, THE VEHICLE ACCELERATED WHEN THE PEDAL WAS APPLIED AND THEN IT BECAME STUCK MOMENTARILY. THE CONSUMER STATED WHEN THE HAND CONTROLS, THAT WERE INSTALLED IN THE VEHICLE WERE USED, THAT'S WHEN THE ENGINE ACCELERATED AND THE PEDAL WOULD STICK. *JB

NHTSA ID

10605279

Incident

Jun 2, 2014

I PARKED MY CAR ON AN UPWARD INCLINING DRIVEWAY AND LEFT IT IN IDLE. I WENT INSIDE THE HOUSE TO GO AND GET MY DOG AND SPEAK TO MY IN-LAWS. I BROUGHT THE KENNEL OUT TO THE CAR, LIFTED THE TAILGATE AND PUT THE KENNEL IN. I WENT BACK IN THE HOUSE, GOT THE DOG FOOD, PUT THE DOG FOOD IN THE TAILGATE. I WENT BACK INSIDE AND WAS SPEAKING TO MY IN-LAWS WHEN ALL OF A SUDDEN WE HEARD A LOUD CRASH. WE WENT OUTSIDE AND MY CAR HAD ACCELERATED AND CRASHED INTO THEIR GARAGE. THERE WAS NO ONE IN THE CAR AT THE TIME OF THE ACCELERATION. THE DOG WAS STILL IN THE HOUSE WITH US. THE CAR WAS IN PARK. THE TAILGATE WILL NOT LIFT UNLESS THE CAR IS IN PARK WHILE IDLING. WHEN THE CAR IS IN DRIVE, THE DOORS LOCK. SO, WE KNOW IT WAS IN PARK. THE CAR CAUSED EXTENSIVE DAMAGE TO THE GARAGE FROM THE FORCE OF THE ACCELERATION. THE CAR ALSO HAD GRAVITY WORKING AGAINST IT, AS IT WAS AT AN UPWARD INCLINE. *TR

NHTSA ID

10561560

Incident

Jan 26, 2014

Mileage

1,800 mi