2022 Toyota Highlander

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.

I am reporting a premature transmission failure on a 2022 Toyota Highlander LE at approximately 85,000 miles. The vehicle began exhibiting a whining noise. When brought into the Toyota Dealership, I was notified that it needs a full transmission replacement. The vehicle was inspected by an authorized Toyota dealership, which determined that the transmission has failed and requires full replacement at an estimated cost of approximately $9,400. There were no warning lamps or messages of the problem prior to the failure. A transmission failing at this mileage creates a significant safety risk, especially when merging into traffic, accelerating from a stop, or maintaining highway speeds. This vehicle has been regularly maintained, with service performed through authorized Toyota dealerships. Despite this, Toyota has declined to provide assistance for the repair. This has caused a massive financial stress and strain. There is a documented pattern of similar transmission failures involving Toyota Highlander vehicles equipped with the 8-speed automatic transmission (UA80 platform) across multiple model years.This appears to be part of a broader pattern of premature transmission failures that may indicate a defect affecting vehicle safety. The consistency of complaints across multiple vehicles and model years suggests this is not an isolated incident. I am requesting that NHTSA investigate this issue for potential safety defects and determine whether further action, including recall or manufacturer accountability, is warranted.

The struts for the tailgate appear to be a problem for these cars. Mine are failing intermittently and so if the technicians don’t witness it, they refuse to cover it under warranty. If I crash and the trunk is the only way out, I willl die. The trunk gets stuck and won’t open or close unless forced. This is a disaster and should be recalled. I see multiple complaints all over the internet about this issue and the dealers are NO help. I have gone 4 separate times and they have wasted my time because there was no resolution.

The transmission began making a whining noise at about 70,000 miles. It gradually became more noticeable. We had recently completed a thorough service, including transmission fluid exchange at 68,538 miles at a Toyota dealer. In March 2026 we took it to a Toyota dealer at 75,196 miles to report the noise and the dealer said the noise was coming from the transaxle and advised replacing the transaxle, which will require replacing the transmission. This was confirmed by a second Toyota dealer a few weeks later. Upon further research, it is clear that this is a significant safety issue and I will need to expend between $6k - $8k for repair from an independent shop and at a much higher expense if done through a Toyota dealer.

The contact owns a 2022 Toyota Highlander. The contact stated that while driving at various speeds, there was an abnormal sound coming from the engine while the accelerator pedal was depressed. No warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired out-of-pocket. The manufacturer was made aware of the failure. The failure mileage was approximately 125,000.

Noticed a sound coming from the car. I took it to the dealership which they said I would need my transmission replaced. They could only get me a refurbished one, which after parts and labor, it would cost 10,000 dollars. Upon talking with the technician, the transmission my car uses has been known to be faulty and having issues, usually after the warranty. So much so that Toyota did a recall on previous car years to extend the warranty for the transmission. The technician said they are replacing them often, which is why the supply is so low. These transmissions are the ones Toyota has been using since 2016, which have had many defects and causing issues. If this was known for years, why did Toyota continue to use them?

Vehicle: 2022 Toyota Highlander Limited Mileage at failure: ~60,000 miles The driver seat began moving rearward without any driver input while the vehicle was being driven. The movement was intermittent and occurred multiple times over several days. In one incident, the seat moved rearward while my wife was driving, causing her to lose proper reach to the brake pedal and nearly lose control of the vehicle. The seat would sometimes move to the full rear position and continue attempting to move past the mechanical stop. The problem also occurred during vehicle startup and shutdown cycles. This condition creates a significant safety risk because the driver’s seating position can change unexpectedly while driving. In attempting to mitigate the problem, I tried to disable the power seat by removing the fuse. However, the power seat fuses on this vehicle are not clearly labeled and are mounted on the side of the interior junction block under the dash, making them inaccessible to the driver without removing interior panels. As a result, the malfunctioning system could not be quickly disabled. The vehicle required replacement of the driver seat control/track assembly at a cost of approximately $1,600. Uncommanded movement of the driver seat while driving appears to be a safety-related defect and should be investigated for potential recall or service campaign