2019 Toyota Highlander Powertrain (other) Problems

My 2019 Toyota Highlander has the same UA80 transmission that Toyota was required to fix under CUSTOMER SUPPORT PROGRAM ZJC, which covers 2017-2018, the transmission has the same whining noise and shifting issues. Toyota must accept responsibility for their manufacturing error where the washer tab was not bent properly, allowing a nut to loosen leading to the whining noise. I expect the NHTS to require them to cover their 2019's as well, as a consumer we are getting screwed here.

NHTSA ID

11754310

Incident

Jul 15, 2026

In April of 2026 started hearing a whining noise in the engine of my 2019 Toyota Highlander. The vehicle has 110471 miles. Have had it checked at the dealership twice and a mechanic twice. All have said the transmission is going out. I have had the transmission fluid replaced, but it did not help. Apparently, Toyota knew about this problem and still sold the car. I am unable to drive car because I am afraid it is going to break down. The dealership said they could replace the transmission for 8762.64 dollars. Toyota has since stopped making UA80 eight speed auto transmission.

NHTSA ID

11753890

Incident

Apr 8, 2026

I have a 2019 Highlander XLE AWD that had 85000 miles when the transmission started whining. It got worse pretty quickly so iI took it to a transmission shop. They rebuilt it for $6700.00. I drove it for another 9-10 thousand miles and the whine is back. I'm not sinking another $6700.00 into another transmission. I've talked to several transmission shops and I'm being told there isn't a true fix. Rebuild it and it will come back, guaranteed. What recourse do I have? The car only has 102,000 miles which is typically nothing for a Toyota. But it all started at 85000. Something needs to be done. I see programs for the 2017 and 2018 models but not the 2019. It's the same transmission. The issues crop up after the vehicle has gone out of warranty.

NHTSA ID

11752267

Incident

Apr 4, 2025

Hundreds of thousands of 2017–2022 gas-powered Toyota Highlanders (equipped with UA80E/UA80F 8-speed transmissions) are experiencing high-pitched whining noises, hard or erratic shifting, and sudden hesitation. This is caused by a factory defect where a retaining nut and locking tab in the counter drive gear sub-assembly were improperly installed, causing premature internal wear and gear movement

NHTSA ID

11749409

Incident

Dec 10, 2025

I have the high pitch whine coming from transmission. It is a known issue with Toyota but they refuse to look into it since my VIN falls outside their recall list. This is the same transmission as previous years and has the exact same issues. This is a safety issue that needs to be addressed immediately.

NHTSA ID

11749132

Incident

Jul 2, 2025

My car has been making a whining noise upon acceleration. It stops whining as soon as you release the acceleration I had a mechanic look at it who verified transmission failure.

NHTSA ID

11743683

Incident

Jun 4, 2026

My Toyota Highlander 2019 began to produce a whining noise that orginates in the transmission at about 89000 miles. An independent mechanic examined the vehicle and deteremined that the noise is well documented. After conducting research, I found that the issue is caused by improper assembly and the only repair is a complete replacement of the transmission. I also discovered that there is a recall on the 2017-2019 Toyota Highlander due to the 8 speed transmission which is also used in my vehicle. The idea that the 2019-2022 Toyota Highlanders are NOT included in this recall is completely unreasonable. These vehicles utilize the same 8-speed transmission and the whining noise tends to surface after 60, 000 miles - about four to five years based on useage. The whining noise began without warning or symptoms. The vehicle drove without issues and we intended on driving this vehicle into retirement considering the reputation Toyota had on building reliable vehicles. I will never purchase or recommend the purchase of a Toyota vehicle! The idea that repeated transmission failures, without an univeral recall for all years affected, shows that the comsumer is not respected. I would enjoy understanding the logic and data that enabled Toyota to limit the recall to just three production year when the 8-speed transmission spanned six years of production (2017-2022). I am now forced to look into replacing the transmission with potentionally another faulty, improperly assembled 8-speed transmission.

NHTSA ID

11743535

Incident

May 22, 2026

I am reporting a potential premature transmission failure in my 2019 Toyota Highlander AWD. At approximately 89,000 miles, the vehicle developed a noticeable and persistent whining noise coming from the transmission/drivetrain area. The noise continued despite transmission service and has progressed to the point where the vehicle requires a transmission replacement. I have had the vehicle evaluated by three separate repair facilities, including transmission specialists. All three independently determined that the transmission has failed and requires replacement. Repair estimates range from approximately $7,200 to $12,000. A complete transmission failure at approximately 89,000 miles is unexpected and raises concerns about a possible design or manufacturing defect. A transmission failure while driving could cause loss of power, inability to accelerate, reduced control of the vehicle, or create a dangerous situation while merging, entering traffic, or traveling at highway speeds. The vehicle has been maintained and used normally. I am submitting this complaint because I believe this issue may affect other Toyota Highlander owners and should be investigated for a potential safety-related defect.

NHTSA ID

11743301

Incident

May 1, 2026

8 speed transmission faulty

NHTSA ID

11743106

Incident

Jun 9, 2026

My 2019 Toyota Highlander XLE V6 developed a serious transmission-related safety problem that ultimately resulted in a sudden loss of propulsion while driving. For some time before the failure, I had noticed an unusual startup noise during cold starts and mentioned this concern during routine service visits at an authorized Toyota dealership. I was advised that the condition was normal. Prior to the major failure, the vehicle otherwise remained drivable. On December 2, 2025, the vehicle underwent scheduled maintenance at an authorized Toyota dealership, including a transmission fluid service. Within the following days, during cold weather conditions (approximately 35°F), the vehicle began exhibiting transmission shudder, RPM flare, harsh torque converter engagement, and illuminated both the Check Engine and Traction Control warning lights. I immediately returned the vehicle to the servicing dealership and reported that these symptoms had appeared following the maintenance visit. After inspection, I was informed that the torque converter clutch actuator had failed and that the transmission would require replacement or rebuilding. The vehicle was released to me, and I was not advised that it was unsafe to drive or that it should not be operated. On the morning of December 11, 2025, while driving home from work in approximately 31°F temperatures, the vehicle suddenly lost propulsion. The engine RPM increased, but the vehicle would not move under its own power. I narrowly avoided being rear-ended by a truck traveling behind me. I believe this created a significant risk of a serious collision. The vehicle was towed and remained out of service for approximately two months because replacement transmissions were difficult to obtain. The transmission was ultimately replaced with a used transmission assembly at a total repair cost of approximately $7,220. After the transmission replacement, the unusual startup noise that I had previously reported completely disappeared,

NHTSA ID

11742621

Incident

Dec 11, 2025

Transmission is whining on speeds between 25-55 mph. Pointing to pre-mature internal failure of components in Transmission.

NHTSA ID

11740619

Incident

May 5, 2026

Transmission is giving a whining noice when accelerating. Took it to Toyota dealer, they said the transmission needs to be changed and it will cost me $11,000 . There are many complaints online about these UA80 Transmissions and the root cause is listed to an assembly problem during production but Toyota will not accept this and will not help to replace it

NHTSA ID

11739457

Incident

May 9, 2026

The contact owns a 2019 Toyota Highlander. The contact stated while driving 70 MPH, on the highway. the contact notice an abnormal noise coming from the transmission. A dealer was contacted. The vehicle was taken to the dealer where it was diagnosed the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified on the failure and they informed him this will not b escalated and offered no further assistance. The approximate failure mileage was 133, 000.

NHTSA ID

11737673

Incident

May 3, 2026

Mileage

133,000 mi

Whining noise on a cold start and at acceleration. Transmission fluid was replaced less than 1000 miles ago and noise has gotten louder.

NHTSA ID

11737598

Incident

Feb 3, 2026

Around Halloween 2025 my Toyota’s Transmission started slipping. I called a few places and no one except Toyota would address the issue except a local shop in [XXX] , Ridge Auto Repair who after checking out the vehicle said they can’t repair it because the parts are not available November 6th, 2025, The Shop LAG LLC was recommended to me by a family member, and they came to check out the Toyota, and they were convinced it was the Torque Converter and wanted $1300 to fix it. I paid them and after a few weeks they claimed it was the Transmission and wanted more money which they were paid. Weeks went by and no updates from them and they weren’t responding to my messages. When they finally responded they started saying the starter was bad, the differential, the fly wheel, etc, Again, we paid them more money, and again weeks went by without any updates. We paid a total of $9000.00 Their last attempt to fix the vehicle also failed and I’m left with a vehicle with no transmission, the entire front end taken apart and scattered all over my property and this was their last response. “Oh lord. So the original place we got the transmission from denied the warranty, but at the time it wasnt a problem we have insurance. So we summited a claim and thats why it was going to be shipped from another place. Well they kept telling me that it was coming this day then that day. I got a letter denying the claim Instead. I have tried to fight it, but they ended up dropping us after that. We are willing to install one in for free if your able to get your hands on one, because this whole ordeal has been a nightmare, but we got denied due to mileage with the claim. There was a difference in our timestamped pictures and the adress of where it went once it left. So they said it was driven on with a problem, because it was moved to there with a problem thats what they are denying my claims to fight it. I didn't want to say anything until it was final and we kne INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMA

NHTSA ID

11735861

Incident

Nov 6, 2025

My car all of a sudden has this sudden humming/high pitch sound. I had mechanic checked and he said coming from the transmission. I checked the Toyota forum and there's a widespread issues with their transmission. The issue started with the year 2017, These vehicles are equipped with the UA80F (AWD) and UA80E (FWD) 8-speed automatic transmissions. My 2019 is equipped with the UA80E. Toyota already recognized that they have problems with the transmission but only issued a recall for vehicles 2017-2018. They need to include Toyota highlander 2019.

NHTSA ID

11735699

Incident

Apr 1, 2026

This vehicle safety complaint is regarding my 2019 Toyota Highlander XLE, VIN [XXX] . A Toyota-authorized dealership, Sansone Toyota in Avenel, New Jersey, documented that the front driver axle is prone to freezing in the differential. This is a serious safety concern because if the axle seizes while the vehicle is in motion, it could cause sudden loss of control. This vehicle is used regularly as our family vehicle, including to transport our family of 6 with our young children. I am extremely concerned about continued operation of the vehicle while this documented condition remains unresolved. In addition to this safety-related axle issue, this vehicle has a broader history of serious mechanical problems. On May 13, 2022, after a recent service visit at DCH Brunswick Toyota, I reported that when I pressed the gas the vehicle was making an unusual noise like an old car, that the car delayed to speed when I pressed the gas, that I had to press the gas all the way in order for the car to move faster, and that it was not like this prior to service. At approximately 25,000 miles, I also asked that the brakes be checked because when we drove the vehicle and used the brakes, the car made a startling sound. In 2023, I also reported hard/heavy steering and jerking while driving. I reported transmission-related abnormal noises and drivability concerns while the vehicle was still within Toyota’s powertrain warranty period, but the condition was not properly diagnosed at that time. The transmission has since been confirmed by authorized Toyota dealerships to require full replacement. The vehicle also has a documented engine oil leak, leaking shock absorber, and prior recall history involving a stalling condition. I've filed this complaint with NHTSA due to the axle-related safety risk. Toyota is now on written notice of that condition. Mileage: approximately 101,000 Documenting safety issue: Sansone Toyota, Avenel, NJ Please review this potential safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION

NHTSA ID

11734722

Incident

Apr 14, 2026

Hi. I have a Toyota 2019 Highlander EXL. My problems is the transmission started to have the small whining noise every time I accelerates and I it's happened over 18 months ago and I didn't know that is the issues until I brought it to the Toyota Dealer for 75k maintenance. The Dealer has told me that the noise was abnormal and it's from the transmission and it's will cost me $13 K to replace with a new one. I believe in Toyota quality but now I will have to really think about it again for the next purchase ?. I don't understand why Toyota has known this issues because of many reported but never intend to fixed it. I'm not so happy with this . Please ask ToyoTa Corp to answer and do take the responsibility before someone is getting hurds Thanks Tom le

NHTSA ID

11733240

Incident

Jun 5, 2025

Traveling at approximately 60-65 mph on interstate 95 in Wakefield the vehicle suddenly downshifted causing a rapid deceleration to around 40 mph. It would not upshift requiring us to pull into the breakdown lane.

NHTSA ID

11732599

Incident

Feb 18, 2026

A wining started on my 2019 Toyota highlander. I took to mechanic and they confirmed it was transmission. There was no warning.

NHTSA ID

11732308

Incident

Sep 11, 2025

Loud whining noises from transmission, repeated unpredictable shifts making pulling out/merging unsafe

NHTSA ID

11732275

Incident

Apr 17, 2026

I own a 2019 Highlander at just barely over 55,000 miles. I began hearing a humming noise while accelerating and brought it into Toyota. They told me that bearings are worn in the transmission and I need a new transmission replacement, which will cost $11,569.21. I am shocked Toyota has not issued a recall and corrected this well-known issue. I am disappointed in Toyota, being a loyal customer over the years, if they can't guarantee quality or assist in the issue they know about, I will not trust Toyota again.

NHTSA ID

11731370

Incident

Apr 1, 2026

I am writing to you as a deeply loyal Toyota customer who is facing a distressing and financially significant situation with my 2019 Toyota Highlander. Our family has been committed Toyota owners for several decades. Over the years, we have owned a Toyota Corolla, Camry, and multiple Highlanders — and we currently drive two Toyota vehicles. We have consistently chosen Toyota over other brands because of the trust we place in your engineering, reliability, and the value Toyota stands behind. We even replaced all of our Honda vehicles with Toyotas because of that trust. We purchased our 2019 Toyota Highlander during the COVID-19 pandemic, paying above market value because we believed in the Toyota brand and its long-standing reputation for durability. We have never regretted that decision — until now. At approximately 95,000 miles, our Highlander began exhibiting a high-pitched humming noise and gear slippage. We brought the vehicle to our Toyota dealership, who diagnosed the issue as a complete transmission failure. The repair estimate provided was $17,000. We were also informed that this repair would not be covered under any existing warranty. We are not only shocked by the severity and cost of this failure on a well-maintained, 7-year-old vehicle — we are also deeply concerned by what we discovered in our research. There appear to be hundreds of complaints from other Toyota Highlander owners reporting the exact same transmission issue, across the same model years, suggesting this may be a widespread and systemic defect rather than an isolated incident. Given this context, we respectfully ask Toyota to consider the following: 1. A goodwill warranty exception or partial/full coverage of the transmission repair cost, in recognition of our long-standing loyalty and the apparent prevalence of this issue across multiple vehicles. 2. An acknowledgment of the reported pattern of transmission failures in the 2019 Highlander, and whether Toyota is investigating or plan

NHTSA ID

11730682

Incident

Oct 23, 2025

The contact owns a 2019 Toyota Highlander. The contact stated that while attempting to start the vehicle, there was an abnormal grinding sound coming from the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with transmission failure. The independent mechanic replaced the transmission fluid; however, the failure reoccurred. The vehicle was towed back to the 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 contact was informed that parts were on back order. The manufacturer was made aware of the failure, and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 128,669.

NHTSA ID

11729991

Incident

Mar 7, 2026

Mileage

128,699 mi

At 138,000 miles my 2019 Toyota Highlander's transmission failed. I noticed a whining sound when I pushed on the accelerator, so I scheduled a service appointment to have it looked at. The day I brought it into the mechanic it began stalling at stop signs. I was driving my children to school when the vehicle began stalling, fortunately I was able to get it looked at that day. My local mechanic diagnosed it as a failed transmission having to do with something inside the transmission. I called Toyota and they said in order to qualify for support through their service program I needed to have the vehicle diagnosed by at a Toyota dealership. I had the vehicle towed to the dealership, where they too confirmed the transmission had failed due to something inside the transmission, which they diagnosed with a telescope. They quoted me $12K for a new transmission! I had routine maintenance performed throughout the life of the vehicle, primarily at the Toyota Service Center. Just 20 months prior to this happening I had the suggested transmission services completed at the dealership. The only services I had completed outside of the dealership over the last 20 months were regular oil changes and tires. The transmission in my 2019 Highlander is the same failed transmission as the ones in the 2017-2018, which Toyota issued a bulletin on, the same transmission Toyota has received numerous complaints about. The same transmission with hundreds of other customer's have filed incident reports on. The transmission they knew was problematic yet continued to put into new vehicles. I've been a loyal Toyota customer, this is my 5th Toyota. I can't believe that there is nothing Toyota is willing to do to support their customers. I thought Toyota prides itself on being a trusted brand with loyal customers, because they make vehicles that last and take care of them when they don't. I was wrong.

NHTSA ID

11729546

Incident

Mar 25, 2026