2022 Toyota Highlander: grinding or squealing brakes

Filed Sep 20, 2026 · Transmission · MD

Vehicle begin making grinding noises, and stalling during accelerating and also fuel smell. Took vehicle into Toyota Waldorf, MD dealership for diagnostic. At 58,000 miles, 2022 Toyota Highlander XLE stalls to accelerate due to front differentials failing, causing large chunks of metal on the drain plug indicating internal failure. Vehicle needs transmission and front differential replaced. I have 4 children, 3 of them still small, and driving with the fuel smell would impact them greatly as 1 of my children has asthma. It's also a hazard to be on the road with this vehicle as it can stall at any moment, causing a traffic incident. The problem has been reproduced by dealer, who is refusing to approve the fix under the 60,000 mile Power Train Warranty. There were no other warning signs, no check engine light came on, no issues prior to me hearing this grinding noise and stalling.

Filed Sep 20, 2026 · Transmission · MD

Vehicle begin making grinding noises, and stalling during accelerating and also fuel smell. Took vehicle into Toyota Waldorf, MD dealership for diagnostic. At 58,000 miles, 2022 Toyota Highlander XLE stalls to accelerate due to front differentials failing, causing large chunks of metal on the drain plug indicating internal failure. Vehicle needs transmission and front differential replaced. I have 4 children, 3 of them still small, and driving with the fuel smell would impact them greatly as 1 of my children has asthma. It's also a hazard to be on the road with this vehicle as it can stall at any moment, causing a traffic incident. The problem has been reproduced by dealer, who is refusing to approve the fix under the 60,000 mile Power Train Warranty. There were no other warning signs, no check engine light came on, no issues prior to me hearing this grinding noise and stalling.

Filed Sep 14, 2026 · Transmission · NC

While accelerating, the vehicle produces a loud whining noise from the transmission area underneath the vehicle. I took the vehicle to Modern Toyota in [XXX] on XXX at 103,287 miles. The dealer diagnosed the condition and their invoice states the vehicle "needs the transmission replaced due to a gear whine." The estimated repair cost is approximately $10,498. This vehicle is equipped with the UA80E 8-speed automatic transmission. Toyota documented this same condition in Technical Service Bulletin T-SB-0008-21, which describes a whine or grind noise from the transmission caused by the front carrier assembly pinion shafts, and prescribes transaxle replacement as the repair. My vehicle exhibits the identical symptom and requires the identical repair. The vehicle is the original purchase, bought new on XXX. The failure occurred outside the 60,000-mile powertrain warranty limit, leaving the full repair cost to the owner. This appears to be a widespread defect affecting UA80-equipped Toyota vehicles across multiple model years, and I am reporting it so it is on record. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 30, 2026 · Body · FL

The power back door struts were not completely operational for about 6 months or more from the date of repair on 2/26/26. Therefore, the back hatch would not close without manipulating it by starting the vehicle and using the inside button to close it. There was also a loud grinding/whining noise each time we opened and closed the hatch. The dealer said it's a common problem and maybe the struts were blown out because we had to open the rear hatch to get a mobility scooter in and out . Since we were concerned that eventually the hatch would be stuck in the upright position permanately, we relented and paid to have the Toyota dealer replace the struts. The dealer said it may become a recall because it's so common.

Filed Apr 18, 2026 · Transmission · NY

To Whom It May Concern, I am submitting this complaint to report a serious mechanical issue involving the transfer case on my 2022 Toyota Highlander. This problem raises concerns regarding the safety, reliability, and overall performance of the vehicle. While driving, I began hearing a grinding noise coming from the vehicle. Concerned, I brought the vehicle to an authorized dealership for a diagnostic inspection. I was informed that there is a transmission-related issue and that the vehicle requires a transfer case replacement. At the time of diagnosis, the vehicle had approximately 77,000 miles and has been primarily driven locally under normal conditions. This type of major drivetrain failure at such mileage is unexpected and concerning, especially given that the vehicle has been properly maintained. The failure of a critical component such as the transfer case can significantly affect vehicle control and drivability, posing a potential safety risk. This raises concerns about a possible defect in the drivetrain system or a broader issue affecting similar vehicles. I respectfully request that this matter be investigated to determine whether this is an isolated incident or part of a wider pattern. If necessary, appropriate corrective actions should be taken to ensure consumer safety. Thank you for your attention to this matter. I am available to provide any additional documentation, including service records and diagnostic reports, upon request.

Filed Sep 17, 2025 · Driver assistance, Transmission · TX

I own a 2022 Toyota Highlander XLE (UA80E transmission, ~66k mi). The vehicle exhibits a severe transmission defect: uncommanded braking/drag at 35–40 mph and sudden loss of power when accelerating from a stop, making merging/crossing intersections dangerous. Two Toyota dealers (Bryan Toyota and Plano Toyota) reproduced the issue, documented the vehicle as unsafe to drive, and recommended full transmission replacement. The failed unit is preserved at the dealer for inspection. (Toyota Corporate Case #250917001779.) This mirrors long-standing defects within Toyota’s UA80 family that Toyota itself has documented: • Customer Support Program ZJC / POL19-04 (4/18/2019)—UA80 whine, harsh shifts, reduced power 2019 MC-10159730-9999 . • T-SB-0160-18 Rev1 (12/17/2018)—UA80 whine/harsh shift/MIL/reduced power 2018 MC-10198131-9999 . • T-SB-0001-18 Rev2 (1/8/2018)—ECM/UA80 mismatch causing harsh shifts 2018 MC-10185780-9999 . • T-SB-0008-21 (2/9/2021)—UA80E/F failures in 2021 Highlander (whine/grind, pinion shaft) 2021 MC-10188917-9999 . The same safety-critical behavior now recurs in my 2022 model. I request the federal safety agency investigate this as an ongoing UA80 transmission safety defect trend and consider recall/coverage for affected vehicles.

Filed Aug 16, 2025 · Transmission · PA

Complaint Description: The automatic transmission in my 2022 Toyota Highlander failed completely at only 62,800 miles. Toyota Brand Engagement Center offered to cover 50% of the replacement cost, but I was informed that the transmission is on national backorder with an estimated wait time of 4–5 months. This leaves me without a safe and reliable vehicle for an extended period of time. The failure is consistent with Technical Service Bulletin T-SB-0008-21 (Feb 9, 2021), which acknowledges internal component failures and abnormal noises (whine/grind) in UA80E/UA80F transmissions. A major drivetrain failure at this mileage is unacceptable and raises concerns about safety, reliability, and Toyota’s handling of known transmission defects. I am requesting the federal safety agency to investigate this issue as it appears to be systemic and affecting many 2021–2022 Toyota Highlander owners.