While driving the vehicle will wobble, shake and make grinding noises at lower speeds and at higher speeds.
2021 Toyota Highlander
Owner reports · Recalls · Investigations
More warning signs than most Highlander years
Owner complaints for the 2021 Toyota Highlander are substantially higher than the model-year median of 186.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Highlander years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 42 of 512 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Power Train. Review the 219 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 66 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 51 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
219 reportsThe transmission has a whining noise caused by the front carrier pinion shafts. There is a TSB out for the transmission issue. Transmission has been inspected by a technician. No warnings - the noise was a warning I suppose. It first appeared in March 2025.
The transmission started to make a higher pitch sound when accelerating. We brought the vehicle in for evaluation @ 70,500 miles. We were advised the vehicle needed a new transmission for $ 9,900.00 Not even 4 years old, and Toyota Warrantee department said past the 60K drive train warranty so no support from them.
There is a whining noise that occurs when the car is accelerating. At times, there car will skip when accelerating. There is also a vibration. I was informed the issue is with the transmission. A bad transmission can make driving very difficult, potentially causing the vehicle to stall or become unresponsive, and can be a safe…
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There is a whining noise that occurs when the car is accelerating. At times, there car will skip when accelerating. There is also a vibration. I was informed the issue is with the transmission. A bad transmission can make driving very difficult, potentially causing the vehicle to stall or become unresponsive, and can be a safety concern. I drive my child to school daily, over an hour from our home, and drive to homes to provide hospice care to terminally ill patients. This issue causes great concern, both financially and for safety.
There is a TSB about the transmission whine between certain serial numbers. My transmission was outside of the range but started whining. I took it to the Toyota dealership and they advised me that the transmission needs to be replaced.
The transmission is whining at medium speeds of 30-35 mph. The transmission started making the noise about 3 weeks ago. It appears that Toyota was aware of the potential defect in the transmission as Toyota issued a technical service bulletin (T-SB-008-21 and NHTSA # 10188917) on February 9, 2021. The TSB was sent to dealership…
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The transmission is whining at medium speeds of 30-35 mph. The transmission started making the noise about 3 weeks ago. It appears that Toyota was aware of the potential defect in the transmission as Toyota issued a technical service bulletin (T-SB-008-21 and NHTSA # 10188917) on February 9, 2021. The TSB was sent to dealerships 17 days before we purchased the vehicle. Toyota took no steps to notify the owners or to prevent the sale of the vehicle with a know defective transmission. The TSB said the only cure to the defect was a transmission replacement. Toyota offered no extension for this drivetrain defect beyond the standard 60 month/60,000 mile warranty. Our vehicle is just outside of these parameters at 70k miles. The vehicle should not have been sold with know defects in the transmission and Toyota at the very least should offer to extend the standard warranty.
Transmission is producing a whining noise during acceleration. Very common with this model transmission.
I purchased a new 2021 Toyota Highlander and began to experience a clicking noise coming from under the vehicle which grew in intensity. The vehicle has 76,000 miles. I regularly took the vehicle to a Toyota dealership for service where they never mentioned any needed service for the transmission. I informed the dealership of th…
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I purchased a new 2021 Toyota Highlander and began to experience a clicking noise coming from under the vehicle which grew in intensity. The vehicle has 76,000 miles. I regularly took the vehicle to a Toyota dealership for service where they never mentioned any needed service for the transmission. I informed the dealership of the clicking noise where I was told by a Service Technician that they have seen a large number of newer Toyota Highlanders experience transmission failures. I asked the Technician if a recall was issued and he simply shrugged his shoulders and walked away. This is a serious issue affecting a major component of a vehicle and safety, it is unconscionable that a major reputable manufacturer such as Toyota would be aware of a major defect and refuse to address the issue.
- transmission has a whine sound. - steering while start in to peel off after 25k miles driving
The transmission began to do a whining noise at 70K which is a signal of soon deterioration and failure. Toyota acknowledged the widespread issue but for only a very small portion in the T-SB-0008-21, though covered only under the standard 60K warranty. My car doesn't fall in the range of transmission mentioned in the TSB, thoug…
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The transmission began to do a whining noise at 70K which is a signal of soon deterioration and failure. Toyota acknowledged the widespread issue but for only a very small portion in the T-SB-0008-21, though covered only under the standard 60K warranty. My car doesn't fall in the range of transmission mentioned in the TSB, though it is the same UA80 transmission model, and the symptoms and the problem is exactly the same as verified by the dealer. I have learned that many Highlander owners with UA80 transmissions are having the exact same issue around or right after the 60K miles.
Official recalls
426V128000 · Seats:mid/rear Assembly:recliner
Mar 5, 2026
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2025 Highlander and Highlander Hybrid vehicles. The second-row seat backs may fail to lock into position during seat back adjustment.
Consequence & remedy
Consequence: A seat back that fails to lock may not properly restrain an occupant during a crash, increasing the risk of injury.
Remedy: Dealers will replace the return springs in the seat back recliner assemblies, free of charge. Owner letters were mailed September 9, 2026. This is a phased recall. Owners may contact Toyota’s customer service at 1-800-331-4331. Toyota's numbers for this recall are 26TB06 and 26TA06.
24V452000 · Tires
Jun 18, 2024
Southeast Toyota Distributors, LLC (SET) is recalling certain 2021-2024 Highlander vehicles. The 20-inch accessory tires with an insufficient load rating for the vehicle's Gross Axle Weight Rating (GAWR) were installed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
Consequence & remedy
Consequence: Tires with an insufficient load rating can be overloaded and fail, increasing the risk of a crash.
Remedy: SET will inspect and replace the tires and information placard, as necessary free of charge. Owner notification letters were mailed August 16, 2024. Owners may contact SET's customer service at 1-866-405-4226. SET's number for this recall is SET24A.
23V865000 · Air Bags:sensor:occupant Classification
Dec 20, 2023
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying.
Consequence & remedy
Consequence: An air bag that does not deploy during a crash increases the risk of injury.
Remedy: Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed in February 2024. Some final remedy owner letters were mailed October 31, 2024. Letters will continue to be mailed in phases through January 2026. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB15/23TA15 Lexus 23LB03/23LA03.
23V720000 · Structure:body:bumpers
Oct 26, 2023
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2023 Highlander & Highlander Hybrid vehicles. During normal vehicle operation, minor impact to the front lower bumper cover may result in the cover coming loose or detaching.
Consequence & remedy
Consequence: A detached front bumper cover can become a road hazard, increasing the risk of a crash.
Remedy: Dealers will repair or replace the upper and lower front bumper covers as necessary, free of charge. Owner letters were mailed April 22, 2024. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB12/23TA12.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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