2019 Toyota Highlander

While driving, I began noticing a high-pitched whining or buzzing noise when pressing the accelerator, particularly at low speeds. The sound resembles an electric or remote-control car and rises in pitch with engine RPMs. The noise disappears when I release the gas pedal. A mechanic initially suspected a wheel bearing, but after further inspection, it appears the noise is coming from the transmission or drivetrain. I later discovered that this issue is widespread among 2017–2020 Toyota Highlander models equipped with the UA80E/UA80F 8-speed automatic transmission, which has been associated with internal gear and pump whine. Toyota has issued Customer Support Program POL19-04 and Technical Service Bulletin T-SB-0008-21 addressing similar transmission whine and gear damage, but my vehicle is outside the standard 5-year/60,000-mile warranty and was not included in the extended coverage list, even though the symptoms match exactly. The problem appears to be a design or component defect within the UA80-series transmission, leading to premature wear and potential failure. This can affect drivability, safety during acceleration, and could result in transmission failure without warning.

2019 Toyota Highlander XLE with 94,000 miles. This past Friday, the transmission started slipping...slow to move while pushing the gas pedal. After about 20 minutes, was slipping less. Pulled code P2757 off of OBD. By Monday, the car wouldn't move despite revving up to 3500-4000 rpm. Reverse would work, but not first gear. Called AAA and had it towed to a shop. Shop didn't give me codes, but said there were several. They reported that the transmission needed to be replaced or rebuilt.

The contact owns a 2019 Toyota Highlander. The contact stated that while driving 40 MPH uphill and depressing the accelerator pedal, the contact heard a grinding sound and smelled an odor coming from the front of the vehicle. A dealer was contacted. The vehicle was towed to a dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure and opened a case. The approximate failure mileage was 160,000.

My car was having trouble shifting gears and then every single light came on indicating a big problem. The check engine light came on, it said ABS off and went through a bunch of different things saying they all turned off and would barely roll at 2mph. I took it in and it needs a full transmission replacement at barely 73,000 miles. Upon looking into it, I saw online that this is a common issue that Toyota still has not issued an official recall for despite it being a very common issue. It’s a 2019 Toyota Highlander XLE and should not be having these issues this early on.

The contact owns a 2019 Toyota Highlander. The contact stated that while driving at an undisclosed speed, there was a high-pitched whining sound coming from the vehicle. In addition, the contact became aware that the transmission was shifting abnormally rough. No warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with transmission failure. The contact was advised to take the vehicle to the dealer. The vehicle was taken to the dealer 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 and a case was filed. The failure mileage was approximately 90,000. The VIN was unavailable.

The 2019 hylander started whining when pressing the gas pedal. I had it checked out and found that it needs a new transmission but it is so prevalent of an issue with this vehicle that the transmission is on severe back order. Every complaint on the department of transportation website about this vehicle are about this issue save a handful. We should not be liable to pay for this repair nor for a rental car for months while we wait for the parts.

,At approx. 76,000 miles, we begin to hear a whine with acceleration. We also begin experiencing slight hesitation? It was diagnosed at The Williams Toyota Dealership in Big Flats New York 9/22/25. The dealership indicated the final drive gear bearing is starting to fail and we need to replace the transmission at the cost of $7472.00 plus tax. We are aware of the several class action lawsuits that have been filed against Toyota regarding the UA80E/F 8-speed automatic transmissions. The litigation covers multiple Toyota models 2017 model year and onward including the Highlander.