2017 Toyota Sienna

after hearing wining noise from transmission as driving down highway at full speed with out warning car suddenly and quit violently came to a stop . no waring lights ! transmission appears to be in two gears at once reverse and forward will only roll if put in neutral .internal failure in the transmission according to the dealer . The car not included in the recall issued for the same year make and model for the same thing. extremely dangerous wife and kids in the car when it happened.

While trying to accelerate on an onramp to the highway, the transmission failed to enter into higher gear, and the check engine light came on. The 2017 Sienna currently sits at 112,951 miles. Leading up to this, we had noticed the van jolting when being put into drive or reverse, and acceleration was often sluggish, with a whirring sound. Inspection by the local Toyota dealership found that the entire transmission needed to be replaced. The serial number of the transmission starts with UA02, which wasn't part of any of the existing 2017 Sienna service bulletins.

The contact owns a 2017 Toyota Sienna. The contact stated while driving at an undisclosed speed, the contact became aware of a hard shift and a high-pitched whining sound while the transmission was shifting. The vehicle was taken to an independent mechanic where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. In addition, the contact was informed that the repair was not covered under recall. The failure mileage was approximately 110,000.

On Sunday, [XXX] (at 78,793 miles), our MY17 Sienna XLE AWD suddenly displayed a Malfunction Indicator Lamp (MIL) and a message advising "Check AWD System". The vehicle disabled its cruise control system and AWD system, and no longer displays the Eco indicator when traveling at constant speeds on flat terrain. There was no obvious change to vehicle shifting behavior; the shifting has always been sluggish and occasionally "hangs" at higher RPM before downshifting. There were no symptoms or MILs prior to this incident. We consider AWD to be a safety feature when driving with snow or rain, and we frequently traverse Box Elder Canyon where the summit is nearly 6K feet above sea level. We stopped by an auto parts store (O'Reilly) where they pulled codes from the OBD-II sensor. Their reader showed 3 codes: P2714, P0741, and P2757). The vehicle is currently at Young Toyota in Logan, UT. Young Toyota advised that while the vehicle codes are consistent with bulletin [XXX] , that it is not included by Toyota under their list of affected transmissions. The service agent said a solenoid that governs locking the torque converter was "stuck". Since it is outside the 60K miles/60 month powertrain warranty, Toyota is unwilling to provide goodwill towards a fix. The dealer recommended a "software fix", which may or may not solve the issue, and that a transmission replacement would follow. I am simply in shock that a vehicle we purchased new, have carefully maintained (including through Toyota's maintenance plan for 60K miles), could potentially have a failing transmission below 150K miles. This is the UA80F 8-speed automatic transmission, which I believe was first-equipped on the MY17 Sienna, replacing a reliable 6-speed A/T. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Mi toyota sienna 2017 se le daño la transmision con 62,000 milla de uso. Estaba transitado por la carretera aproximadamente a 40 milla por hora, cuando de repente pegó freno y se detuvo. Por poco provocó un accidente. La lleve a la toyota y me dice que es transmision. Pero me informaron que no era su problema. Estuve averiguado este problema y varios me dijero que ese era un problema común en esta guagua. Para mi esto es un problema de fábrica Se supone que lo arregle sin costo. Estoy en lo correcto o no

I was driving and suddenly the 2017 Toyota Siena just lost all acceleration. The car no longer could move in gear. I put car into reverse or drive or any other gear and the vehicle would not move. The engine was on. The parking brake was not on. The transmission seems to have had a major malfunction. I had to have my car towed and my enitre family was stranded. I then looked up tranmission issues and found that 2017 Toyotas have a serious tranmission issue under “ Certain 2017 to 2018 Model Year Toyota Sienna Certain 2017 to 2018 Model Year Toyota Highlander Coverage for UA80 Transmission Customer Support Program ZJC”. I have approx 35000 miles on this vehicle and I bought it close to used from a Kingston Prestige Toyota dealership in New York State.

Parked the car on an incline (our driveway) like we have a 100 times before. Went inside to unload groceries. Came back to the car and from the passenger seat reached over to press the auto-off button. When that was pressed the car started to roll down our driveway with our daughter in the back seat. It rolled across the street, hit the side of our neighbors house, and landed in the woods. My wife sustained major injuries to her arms, legs, hands, and back. She was also 9 months pregnant. Toyota dealership says there's nothing wrong after a 30 minute inspection.

The contact owns a 2017 Toyota Sienna. The contact stated while driving 60 MPH with her four children in the rear seats, the vehicle started jerking and decelerated independently. Additionally, the transmission was slipping. There was no warning light illuminated. The contact continued driving; however, the transmission continuously slipped out of gear. The vehicle was towed to the dealer where it was diagnosed that the failure was associated with Toyota UA80 Transmission program. The dealer contacted the manufacturer who agreed to cover the repair of the vehicle. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 45,000.

The contact owns a 2017 Toyota Sienna. The contact stated while driving 35 MPH and coming to a stop, the brake pedal was depressed but failed to respond. There were no warning lights illuminated. The contact stated the brake pedal was rigid. The contact stated the failure reoccurred while driving. The brake warning light and traction control warning light were illuminated. The vehicle was taken to the dealer who could not determine the cause of the failure. The dealer advised the contact to take the vehicle back to the dealer she purchased the vehicle. The manufacturer was made aware of the failure and referred the contact to the dealer who sold her the vehicle. The vehicle was not repaired. The approximate failure mileage was 14,500.

HISTORY: PERIODICALLY OVER THE LIFE OF THE VEHICLE, WHEN I PUSH DOWN ON THE GAS PEDDLE THE CAR IS UNRESPONSIVE OR RESPONDS IN FITS AND STARTS. THIS IS USUALLY UPON STARTUP AFTER STOPPING AT A STOP SIGN OR LIGHT. BUT IT DID HAPPEN IN MAY OF 2019 AT 65MPH ON THE FREEWAY (GOING STRAIGHT), RESULTING IN SUDDEN DECELERATION. AS I MOVED OVER LANES TO GET TO THE SIDE OF THE ROAD, THERE WAS A SUDDEN JOLT AND THE CAR BEGAN FUNCTIONING NORMALLY. ON SUNDAY 9/22/19 AT 10AM I LEFT MY HOME WITH MY DAUGHTER TO GO TO THE MOVIES. LESS THAN 5 MINUTES FROM OUR HOME, IN OUR FLAT NEIGHBORHOOD GOING 25MPH, I STOPPED AT THE STOP SIGN THEN ATTEMPTED TO ACCELERATE THROUGH THE INTERSECTION. THE CAR WENT A FEW FEET INTO THE INTERSECTION AND THEN WOULDN'T MOVE, THE ENGINE MAKING A WHIRRING SOUND. IT WAS IN DRIVE. I TURNED ON THE HAZARD LIGHTS AND GENTLY ATTEMPTED TO PUSH THE GAS PEDDLE, FINALLY ABLE TO MOVE THROUGH THE INTERSECTION IN FITS AND STARTS (JOLTING) TO GET TO THE SIDE OF THE ROAD. I PUT THE CAR IN PARK, THEN NEUTRAL. PUSHED DOWN THE GAS IN NEUTRAL AND HEARD THE WHIRRING NOISE. IN DRIVE AND REVERSE, THE JOLTING CONTINUED. I WAS ABLE TO JOLT MY WAY HOME UNDER 10MPH. THE CAR WAS FINE WHEN IT WAS COASTING WITHOUT NEEDING POWER, JOLTING WHEN IT NEEDED POWER. BECAUSE THE CAR IS DANGEROUS, I HAD IT TOWED TO MAGNUSSEN'S TOYOTA, WHERE IT IS AS OF THIS WRITING. THIS IS A VERY DANGEROUS DEFECT AND NEEDS TO BE ADDRESSED AS IT SUDDEN DECELERATION IN AN INTERSECTION OR ON THE FREEWAY MAY RESULT IN DEATH. UPON INITIAL DRIVING, I WAS TOLD THE VEHICLE WAS OPERATING NORMAL. I AM WORRIED THEY WON'T FIX IT AND I WILL END UP WITH A VERY DANGEROUS ALMOST NEW CAR. PLEASE HELP, AND HELP FOR THE SAFETY OF OTHERS WITH THIS SAME DEFECT.