The contact owns a 2018 Toyota Highlander. The contact stated that while driving at various speeds and attempting to accelerate, the transmission whined abnormally loud. No warning light was illuminated. The vehicle was taken to a local dealer to be diagnosed. The contact was informed that the transmission needed to be replaced due to internal failures. The vehicle was not repaired because the warranty had expired. The manufacturer was notified of the failure by the local dealer. The failure mileage was approximately 107,000.

- Eagan, MN, USA

Transmission developed whine at 64,000 miles similar to the whine/issues experienced for customers covered under Toyota's ZJC Customer Support Program. My VIN was not in the range of impacted units, but had the same issue/failure.

- Meriden, CT, USA

Vehicle started making a whining noise and diagnosed at Lancaster Toyota as needing a new transmission at a cost of $8500. Ended up having transmission replaced at a local transmission repair shop for $7000.

- Millersville, PA, USA

I brought my car to the dealership due to a small whining noise when accelerating over 30mph. Technician determined the noise is coming from internal transmission failure and recommended replacement. The small whining noise was the only indication something was wrong. No check engine or warning lights on my dashboard. The car is under 50,000 miles at the time.

- Norwalk , CT, USA

The 2018 Toyota Highlander has less than 100K miles on it and has been diagnosed with an $11K repair for essentially a new engine! The dealership (Coughlin Toyota, Heath OH) has said it needs cylinder head assembly for $10,684.20. The error message we are getting is a "Check Engine" light "Take Vehicle to Dealership" and the AWD/ Traction Control shuts off. When searching online forums, there are MANY people experiencing the same problem, apparently a well know issue with Toyota (not just Highlanders). We have only owned this vehicle for a few years and believe this is a manufacturer error that desperately needs investigated. Please.

- Pataskala, OH, USA

My 2018 Highlander Transmission (8 speed model UA80) began a whine noise characteristic of Customer Support Bulletin POL19-04 when the vehicle hit 101k miles. Toyota performed an inspection on 8/9/2024 and recommends full transmission + transfer case replacement. The dealer confirmed also confirmed the issue is characteristic of POL19-04, but because the vehicle was manufactured 6-months after vehicles bracketed in POL19-04 (based on the transmission serial number) it is not included in the support program therefore not covered. Toyota UA80 transmissions have continued to have this issue (example - T-SB-0008-21 for '21 UA80 transmission). While Toyota acknowledges replacement of transmission is necessary to maintain a safe drivetrain, no customer-facing error messages are evident. Also note - transmission fluid has been maintained only using Toyota's recommended Fluid (Toyota branded WS ATF) at Toyota's specified intervals.

- San Jose, CA, USA

The contact owns a 2018 Toyota Highlander. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle was towed to the dealer where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 130,000.

- Gladstone, VA, USA

Whining noise from transmission on 2018 Toyota Highlander XLE model. Toyota has acknowledged this on large numbers of vehicles manufactured during the same year (TSB-0160-18). They have a voluntary recall for some of these vehicles during this year (2018), but not all of them. The transmission can fail which would cause the vehicle to stop running. On a highway or busy road, this presents a very large danger to both the vehicle occupants and also other people on the road. The vehicle has been inspected by both the dealership an an independent transmission shop and identified as the same transmission issue. Toyota will not correct this issue other than to say the transmission needs to be replaced as it will fail at some point in time. No other warning indicators other than the whining sound from the transmission. The symptoms appeared around 48700 miles on the vehicle.

- Endicott, NY, USA

Transaxle/Transmission failed at approx 67000 Miles. Emits a whining sound, very similar to symptoms as other transaxle/transmissions from model yr 2017 covered by the manufacturer for replacement of transaxle/transmission. This vehicle, model year 2018, is not covered by the existing transaxle/transmission replacement program, as explained by the dealership. Yet reviewing many forums, it is said that many of the later 2017/2018 Highlanders received the same transaxle/transmissions as the model year 2017 covered for replacement by the manufacturer, hence they exhibit the same symptoms when they fail. Estimated cost to replace the transaxle/transmission by the dealership $ $8000. The manufacturer needs to step up.

- Bloomfield, NJ, USA

Transmission is bad. Toyota dealership says it needs to be replaced. Really? In a 2018 Toyota. I thought these were good cars. Supposed to last a long time. That-??s why I paid over $30,000 for it. And this is what I get. There is something wrong with this scenario. I could have bought a much cheaper car and it would still be functioning fine.

- Stockton, UT, USA

My transmission started making a whine sound upon acceleration, and at times hesitation of acceleration (inconsistent). Toyota Service identified the issue in 2018 as a defective part from manufacturing and related in the repair notice to Toyota Service Bulletin TSB-160-18 which states certain Highlanders (my year and model) have an issue with a defective part in the transaxle/transmission. Toyota issued an extended warranty for the problem in 2020 (unlimited miles for coverage). I was then told that it then DIDN'T apply to my VIN, even tho it was the problem diagnosed by a Toyota service technician associated with the TSB above, so they wouldn't cover thru the extended warranty. Told me that I have to pay for a new transmission over $9,000. My understanding (I cannot verify) that the initial service bulletin was expanded to cover more models in 2021, then removed the extended warranty, and did not issue a recall. Apparently Toyota is aware of a serious transmission problem caused by a defective part, and it is wider issue. This needs to be addressed as it is a significant hazard and danger Toyota is aware of, and not the cause of normal and expected wear and tear. I need help addressing this with TOyota and want to be sure the problem gets fixed before injuries occur. Toyota has multiple bulletins in the NHTSA data for this issue from before and after this issued bulletin demonstrating on ongoing issue. I tried to upload the TSB and the repair documentation but your system is not allowing

- Wyckoff, NJ, USA

Our transmission has a known manufacture air We have called Toyota several times and they refuse to do anything about this are transmission is going out which could cause a safety issue when driving down the road It's the UA80 TRANSMISSION Toyota is doing a customer support program on this particular transmission but due to the fact ours falls six months after the manufacturer date it doesn't fall within that area this is a manufacturer air due to a bolt not being bent over far enough I feel with the transmission issues that it can cause like serious problems including safety among ourselves or others in Toyota is ignoring this is when brought to them

- Columbus, NE, USA

Hard downshift striking fear!

- Deer Park , TX, USA

The transmission had a growling noise at low speeds. The dealer said that a new transmission is needed. Online complaints show that a badly designed transmission is failing very early in this vehicle and a class action lawsuit was filed because of this transmission.

- Wadsworth, NV, USA

I have a power steering warning light. Steering is harder than normal. I believe this vehicle is having the same power steering problem that Toyota Tundra and sequoias are having. I want it to be recalled and paid for by the manafacturer. This is ridiculous a well maintained vehicle.

- Phoenix, AZ, USA

Transmission case is porous. Toyota calls transmission oil moving through housing, weeping, not leaking and is not a warranty. Toyota dealers hide the porous condition with a coating. Regular underbody car wash removes the coating. Catastrophic failure possible.

- Indianapolis , IN, USA

As of this date, my 2018 Toyota Highlander has delayed acceleration, hesitation, jerking, lurching, erratic throttle responses, etc. While accelerating from a stop. This has occurred two times to date. I was able to pull to the side of the road, shut off the vehicle, restart and then the vehicle performed properly after that. My concern is what may happen when it does it again. Nothing to show in a photo.

- Queen Creek, AZ, USA

Slowly (3-5mph) moving toward exit ramp from hospital parking lot. Tried to brake before turning right onto ramp, but service brake didn't respond -- felt like I was just pounding the floor. Vehicle continued to coast. I turned it onto exit ramp. During coast down ramp the multi-function display showed "low brake power" or "brake power low". vehicle speed remained relatively constant. I shifted into R (reverse), think that no harm would come to transmission at that speed, but nothing happened; coast remained constant. Luckily no vehicles were in front of mine and none were coming on rt 25 brighton ave westbound in portland me, so I was able to steer the coasting vehicle to a slow stop along the road's edge (but still halfway into the travel lane). Then the multi-function display told me that the vehicle's engine had been turned off (not by me). A city bus came along about one minute later; if it had come by one minute before that there would have been a collision with my vehicle. After waiting to recover from the shock of that event, I started the vehicle and tested the brakes, and they seemed normal and there were no unusual lights on messages on the vehicle displays. I tried driving it carefully, and it seemed normal, so I drove it off brighton ave and ultimately got it home in buxton without any more adverse events. Today I looked at the brake fluid reservoir and it was normal (1/4 inch below max). I'm having it towed to the dealership where I bought it on March 1, 2018 and will not drive it again until they tell me it has been fixed.

- Buxton, ME, USA

Steering wheel leather is peeling and causing issues with grip. Have a 5 year old and feel very unsafe driving our Highlander with 20K on it that Toyota claims is cosmetic issue. Transmission shudders very badly going up hills and almost stalls out.

- Knoxville, TN, USA

Apon acceslaration, car hesitate for a few second, RPM goes to 5000 until vehicle slowly start to move. Feels likew ther is no proper synch between enging and transmission. Dangerous when passing or avoiding a vehicle ahead of you. The same issue while using the cruse control, it jumps from a few rpms to 5K + that always I have to brake to avid ramming a car ahead of me. Brakes get sof that I have to pump it a few times. Mileage is 1780 miles.

- Glenn Heights, TX, USA