2019 Toyota Sienna

2019 Sienna XLE with 77,000 miles has a UA80 Transmission is whining at the final gear per Imperial Toyota Milford MA service center. They want to replace the transmission for 9,000 USD and Toyota Corporate refuses assistance. It appear to be a common defect which could lead to transmission lockup if the gear fails.

Started hearing a whining noise upon acceleration. Took car to Toyota for a diagnostic check. Discovered transmission is failing. Recommended repair is a full transmission replacement, quoted 10,000. After bringing to a local mechanic for a second opinion, he claims this is a widespread issue with Toyota Siennas in similar years. After some research, Toyota quietly claims there was an issue in the manufacturing of these transmissions however won’t take accountability

The contact owns a 2019 Toyota Sienna. The contact stated that while attempting to open the driver's side sliding door, the door failed to completely open but remained ajar. The contact became aware that an electrical cable was hanging from the door. The vehicle was taken to the dealer, where it was diagnosed, and determined that the cable needed to be replaced. The dealer informed the contact that the door needed to be taken off and reinstalled to repair the vehicle. The vehicle was not repaired due to the cost. The manufacturer was notified of the failure, but no assistance was provided. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 72,000.

Lyft deactivated 60yo driver (7yr Lyft, 30yr driving) over vague "unsafe driving". Submitted **20 raw dashcam videos** (Oct 29, 2025) proving: - Full stop at flashing red light - Safe rolling stops (<4 mph) in Toyota Sienna + 3 passengers - Max 28 mph Videos requested by Lyft but ignored. **Tickets:** XXX/ XXX/ XXX **Evidence:** https://drive.google.com/drive/folders/1OIgAwnaAV8Jr8GS4uiUcmqwYodmgCAWy?usp=sharing Lyft violates safety policy (§7.3). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

sever transmission whine started at 138k miles over a year ago.Toyota will not fix issues under recalled ua80 transmission. Said my vin doesn’t fall within recall.

Transmission has failed and been replaced. This is part of issues from 2017 to 2020 tranny failures, loud whining and needing to be replaced. Tranny failure is very dangerous to the occupants. Toyota has failed to warranty these.

The Harness Adjuster Strap (item 5 in attached snip from user manual) loosens while in use. This item was manufactured post-recall 24C002000, using Nuna's new design described here: [XXX] This design change did not prevent the functionality of the strap to fail. There was zero to minimal debris (no food, drink, or water) in the mechanism causing it to fail. The Harness Release button (item 4 in snip from user manual) actuates freely. The adjuster strap, and subsequently the entire harness strap, moves freely, while the carseat is loaded or unloaded. I have a video available showing that the strop in the seat freely moving. We discovered the product failure while loading the child in the carseat and testing it's security by pulling on chest straps. Nuna's response was lackluster and unprofessional. Here is the sequence of events: We immediately reported the issue the first business day available, May 27th, and Nuna responded 24hrs later, informing us they would again respond in 1-2 business days to send us a form and shipping label to send back the defective product. We responded the same day asking them to expedite the process and send us a new product immediately as we had no backup for a carseat and my wife could not leave the home. A little over 48 hrs later they denied our request, and sent us the shipping and RMA form. We are now a full business week past the initial request and now are returning the carseat, with no assurance of when the replacement will be delivered. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Transmission UA80e is a poorly designed transmission. It almost caused an accident due to the transmission lunching forward on its own. Also has a whine coming from the transaxle. There is a customer service program for the 2017-2018 models about this issue. But I have a 2019 and not eligible for the program. Would like for Toyota to make this right. Less than 5 year old van.

My van was struck directly in the driver side rear sliding door while sitting still at a stop sign. The other driver collided straight into the passenger compartment door at an approximate speed of 30 mph crushing the door, exploding the window and neither the driver side airbags nor the side curtain airbags deployed. Resulting in my wife severely jarring around in the driver's seat, as well as my son who was securely fastened in a child booster seat in the driver side rear seat. The glass from the rear door window shattered and covered my son and the interior of the vehicle. There are no active recalls, but I read about a recall concerning the passenger side door welds that could affect operation of the side airbag and side curtain airbag sensors, but this only applied to a small number of 2019 Sienna's. Could this have been a manufacturing defect that bled over to the other door structures affecting the sensors in the same way.

The contact owns a 2019 Toyota Sienna. The contact stated that after he entered the vehicle, he depressed the brake pedal to start the vehicle. After the vehicle was started, he shifted into reverse(R) while the brake pedal remained depressed; however, the vehicle inadvertently accelerated without warning. In a desperate attempt to stop the vehicle from crashing into another vehicle, the contact shifted into drive(D) while the brake pedal remained depressed. The contact then stated that he applied pressure to the brake pedal to stop the vehicle from accelerating when the vehicle then jumped the curb and struck a garbage can. The contact then shifted into reverse(R) while the vehicle continued to accelerate to move away from the garbage can and then shifted in neutral(N). The contact then shifted back into park(P). The contact then stated that after he placed the vehicle in park, the inadvertent acceleration stopped. The contact shifted into drive(D) and the vehicle performed as designed; however, the contact was concerned for his safety and carefully drove the vehicle to his residence where the vehicle remained. The contact was unsure if any warning lights were illuminated. The vehicle was not diagnosed or repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 45,750.

About 2 years after the 9/30/2019 purchase (new), the paint on the front engine hood began peeling & cracking. Calls to Parks Toyota were ineffective. Now the entire hood has pervasive cracks. The hood needs to be removed, sanded & painted with a more substantial, long-lasting paint. The paint used is supposed to contain an additional clear coat for protection.

I was traveling on the Capital Beltway (495) during morning rush-hour in my 2019 Toyota Sienna Minivan. Normal Road Conditions: Stop & Go traffic in the right-most lane around 9:30am on December 14, 2022. All of a sudden and without warning, when attempting to accelerate and keep up with traffic after the vehicle was stopped, I found that I was unable to move forward. (There was no indication that my vehicle was suffering from mechanical failure prior to this incident and no visible alert or alarm was triggered) At that point, I powered down the vehicle after turning on the hazard indicator lights. After re-engaging the ignition, I then tried to move forward, and found the vehicle to be unresponsive. A tractor trailer was directly in back of me and was inching closer as to keep up with the rush-hour traffic. I was immovable at that moment and waived the truck around. After finding a break in traffic, I attempted to move out of the right-most lane, but with the transmission not responding to the Drive function, found that my only course of action was to to engage Reverse and move to the Right shoulder of the highway. I then notified triple A and my vehicle was towed to a local garage for evaluation. Upon initial evaluation is was determined that it was either related to where the shift cable goes in to the transmission, or complete transmission failure. It is highly unusual for a Toyota transmission to fail at 71.000 miles (odometer reading at the time of the incident). I currently have two other Toyota vehicles with odometer reading in excess of 140,000 miles. I am concerned for the safety of my family and myself, as this is the primary vehicle used for transport. A 3 year old car with less than 100,000 miles should not suffer from transmission failure. This is a major safety concern. What if this happened and I was not in stop and go traffic or already in the slow lane, on a major highway?

Problems with catalyst

The microphone has an issue and it is tied to the SOS call button in the car. I asked my dealership, they wanted to charge $200 to run a diagnostic scan, I contacted Toyota directly, they basically said the dealer can charge it if they want and reverse the charge if they find a problem under warranty. I originally thought the issue was with the Blue Tooth. I found this video on YouTube, his fix did work-my concern is, if I had needed Emergency help-the button would not have called anyone, disconnecting your car battery is NOT something I should I have to do to fix a 2019 vehicle. https://www.youtube.com/watch?v=FkAdMRKHS_0

Second row passenger seatbelt jammed. Unable to be repaired needs new seatbelt part. We were out of town and a passenger was unable to be restrained on way home. The Part is on back order. I cannot use this seat which i need for babysitting grandchildren. I cannot eve sell this van because part not available. Van is available for inspection.Colerain Toyota Cincinnati is the dealership i also contacted Toyota complaint department.

The contact owns a 2019 Toyota Sienna. The contact stated that the liftgate failed to lower while using the remote. While reversing, the back-up camera became inoperable. The air bag warning light was illuminated. The vehicle was taken to the local dealer who stated the failure was due to the remote start feature that was installed. The vehicle was not diagnosed or repaired. The contact stated that she noticed the mirrors were fractured. While driving at an undisclosed speed, several unknown safety features became inoperable. There was a burning odor detected inside the vehicle. The manufacturer was contacted and offered to pay a nominal portion of the repair for the mirrors and referred her to the NHTSA Hotline for assistance. The approximate failure mileage was 72,000.

This tire separated at the side wall nearest the rim. The last one separated and swelled roughly the size of a ping pong ball, prior to that the same thing. This is the 3rd Pirelli Scorpion Verde All Season tire to fail. After this last one, I realized it's got to be something with the construction of the tire so I googled and found recalls for other Pireeli tire models. I contacted the mfr and they refused to assist. Spoke with very rude individual at Pirelli USA in Rome, GA location who stated 'if I am concerned about the safety of the tire, report it to the NHTSA' and that in order to obtain a replacement I would have to contact the retailer to initiate a return. As instructed, I spoke with the retailer Simple Tire (Trevose, PA), an individual named Shailesh. I was told since there is no NHTSA recall therefore there is no replacement.

The contact called on behalf of her husband who owns a 2019 Toyota Sienna. The contact stated while her husband was driving approximately 65 MPH, there was an abnormally loud bang heard. The driver became aware that the sunroof glass had shattered and that a part of the glass was missing. The driver continued to his destination. The vehicle was not diagnosed; however, the contact spoke with the local dealer; who informed him that a foreign object probably had struck the sunroof for the glass to shatter. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 30,000.

June 17, 2022, driving on San Diego freeway north near Sherman oaks California, the Transmission suddenly loses power, however the engine still running feels like the gearbox out of any actions, luckily it’s downhill, managed sliding to the shoulder stopped, The warning light says” turn off traction control”, and “ check engine “ It was rush hour, it was dangerous, after parked few minutes turn off and turn on the engine shift to drive gear the transmission only shifting to lower gears ( 1 or 2) moving slowly, So I managed get of next exit, and stop for few minutes, the I try starting again and driving low gear home, Next morning I turn on the engine the check engine light still on but transmission acted normal, I drove to the Northridge Toyota dealer, which is 2 miles away from my house, Took them 3 day, to return to me, they said it was a coil issue and luckily they didn’t charge me,

The power sliding door on the driver’s side of the vehicle is malfunctioning. When the door is opened with the electric opening function, it detects resistance and starts to close. While closing, the door closes with great force and no longer attempts to detect closing resistance. Me, my wife, and my infant daughter have been crushed/trapped by the door. My daughter had her arm trapped in the door. My wife had her back crushed. The Toyota dealer in Tucson, AZ (Precision Toyota) said the electrical cables inside the door are binding, causing the resistance when opening. We have not modified or otherwise touched the electrical door opening cables during our three years of ownership and therefore believe this is an engineering design flaw, or manufacturing defect. My concern is that there may be several other doors with this defect which could eventually lead to great harm on a young child, in the form of a crushing injury.