2020 Toyota Highlander
Problems, recalls and owner-reported issues
Power train is the leading concern among 317 owner complaints filed for this model year. This is the 5th highest complaint count among 25 Highlander model years with reports.
Of the 2020 reports, 15 involved a crash. 20 people were injured.
What owners report most often
Recalls and investigations
Air bags, sensor, occupant classificationDec 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.
An air bag that does not deploy during a crash increases the risk of injury.
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.
Campaign 23V865000 on NHTSA.gov
Structure, body, bumpersOct 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.
A detached front bumper cover can become a road hazard, increasing the risk of a crash.
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.
Campaign 23V720000 on NHTSA.gov
Air bagsOct 14, 2020
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020 Highlander and Highlander hybrid vehicles. Incorrect seat trim covers on one or both of the front seats can prevent the seat-mounted side air bag from deploying properly.
Improper deployment of the seat-mounted side air bag increases the risk of injury in the event of a crash.
Toyota will notify owners, and dealers will inspect the front seats and replace the seat trim covers as necessary, free of charge. The recall began December 11, 2020. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 20TB14 / 20TA14.
Campaign 20V633000 on NHTSA.gov
Fuel system, gasoline, deliveryMar 19, 2020
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020 Highlander vehicles equipped with a 3.5 L, V6 (2GR-FKS) gasoline engine. Due to an Engine Control Unit (ECU) programming error, fuel may not be correctly supplied to the engine while using the stop and restart feature.
Improper fuel supply programming can result in a vehicle stall, increasing the risk of a crash.
Toyota will notify owners, and dealers will reprogram the ECU, free of charge. The recall began May 15, 2020. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is 20TA06.
Campaign 20V162000 on NHTSA.gov
Representative owner complaints: power train
125 reports, newest first. Show all
Power train, Apr 27, 2026
Transmission developed a "whine" just before 87,000 miles resulting in the transmission and torque converter needing to be replaced as the transmission was failing.
Power train, Apr 18, 2026
At approximately 75,000 miles the vehicle had a whining noise coming from the engine area. Took it to the dealer and they tested it, listened to it and determined that the transmission needed replaced. They confirmed the t-case oil is in good condition and level. No maintenance issues or concerns. Just that the transmission had gone bad. Toyota wants $8,000 to replace a transmission with low miles for a 2020 vehicle.
Power train, Apr 16, 2026
UA80 8 Speed transmission on 3.5V6 AWD transmission whine with transmission failure
Power train, Mar 16, 2026
My 2020 Toyota Highlander experiences transmission jerking and hesitation during low speed acceleration. The issue was first reported to the dealership while under warranty but was not diagnosed. The vehicle now requires transmission replacement 7k miles over the warranty despite the issue being reported during the warranty. Toyota has refused a repair under warranty and has violated their terms of powertrain warranty. This 8 speed transmission commonly has issue during production years 2017-2022 and toyota has admitted to a production defect. Despite that they have refused a goodwill repair or a warranty repair.
Power train, Mar 14, 2026
Vehicle produces a noticeable whining noise under acceleration. Shifting is completely normal and no other drivability issues are present. Issue matches the pattern described in TSB T-SB-0008-21 (UA80E/UA80F front carrier assembly pinion shaft bearing failure). Multiple owners report dealers are diagnosing this as requiring full transmission replacement at 8,000–12,000, with no partial repair or recall offered despite Toyota’s prior knowledge of this defect in earlier model years (ZJC Warranty Enhancement Program for 2017–2018). Requesting NHTSA investigation
Power train, Mar 13, 2026
1. The vehicle’s transmission appears to be failing. I was driving my 2020 Toyota Highlander on the freeway at about 75 mph with my family in the vehicle when the car suddenly lost power and would not accelerate properly even though the engine was still running. Because of the sudden loss of power, I had to carefully move the vehicle to the shoulder of the freeway. At the time I did not realize it may have been related to the transmission. 2.Recently I brought the vehicle to an authorized Toyota dealership for a routine oil change and because I had started hearing a whining noise when accelerating, especially above about 30 mph. After inspecting the vehicle, the dealership informed me that the transmission needs to be replaced and provided a repair estimate of approximately 9,800. The vehicle currently has around 72,000 miles and the transmission is available for inspection upon request. 3.The sudden loss of power on the freeway created a dangerous situation because traffic around us was moving at highway speeds. My family was in the vehicle and I had to maneuver the car to the shoulder while vehicles were passing at high speed, which could have resulted in a serious accident. 4.The issue has been confirmed by the authorized Toyota dealership service department. When the incident occurred and we were stopped on the shoulder of the freeway, we contacted the highway patrol because we were concerned about our safety while stopped on the highway. 5.No warning lights or messages appeared on the dashboard prior to the loss of power. The only symptom noticed before bringing the vehicle in for service was a whining noise during acceleration.
Power train, Vehicle speed control, Feb 28, 2026
Vehicle: 2020 Toyota Highlander XLE Purchased: August 2020 Owner: Original owner Transmission: UA80F Dealer quote for “Transmission assembly remove and replace: $8,666.22 +tax The vehicle is experiencing delayed acceleration (lagging power) and a loud whirring noise from the transmission when the accelerator pedal is pressed. The whirring noise immediately stops when the accelerator pedal is released. The Toyota Highlander had just exceeded the 60,000 mile/5 year powertrain warranty. Vehicle has 68,079 miles and is 5 1/2 years old. The delayed acceleration creates a serious safety hazard, particularly when starting from a complete stop while attempting to make a turn into traffic. On multiple occasions, the vehicle failed to respond promptly when the accelerator was pressed, placing the vehicle at risk of being struck by oncoming traffic. On February 17, 2026, Oakbrook Toyota diagnosed the vehicle with a failed/bad transmission after charging a $200 diagnostic fee to investigate the whirring noise and power delay. This failure occurred on a vehicle that has been properly maintained and has not been modified. Upon searching the Internet, there are many, many complaints regarding the UA80 transmissions failing between 60,000 and 70,000 miles. There are also multiple lawsuits filed for failed transmissions.
Power train, Feb 24, 2026
My 2020 Toyota Highlander, with 83k miles, started making a whining noise when accelerating. I took the vehicle to a local auto shop and they advised there was a transmission issue. There were never any warning signs of issue. I then took the vehicle to Antwerpen Toyota in Clarksville, MD (where the vehicle was purchased) and paid $185 for a diagnostic appointment. On February 20, 2026, The dealership provided a written estimate for “Replace automatic transmission assy” with a total cost of $9,403.77. I am very concerned for the safety of myself and others continuing to drive the vehicle without proper repair. The vehicle is otherwise in great condition and I keep up with all regular maintenance.
Power train, Vehicle speed control, Feb 20, 2026
At approximately 120,000 miles, the vehicle began exhibiting a pronounced shudder or vibration between 40–50 mph under light acceleration or steady cruising. The condition progressed to delayed shifting and intermittent loss of acceleration response. The most concerning issue is hesitation and reduced acceleration when attempting to merge into traffic or increase speed. On multiple occasions, the vehicle failed to respond promptly to throttle input, creating a potential safety hazard due to loss of propulsion. The vehicle was evaluated at two authorized Toyota dealerships. Both indicated that the condition is consistent with torque converter or transmission failure. Full transmission replacement was recommended at an estimated cost of approximately $9,000. No whining or grinding noises are present; symptoms primarily involve shuddering and hesitation. The vehicle has not been driven since October 21, 2025, due to safety concerns and to prevent further damage. The vehicle has been regularly maintained at Toyota dealerships and has not been used for towing. This complaint concerns loss of acceleration, transmission shudder, and potential premature failure of the 8-speed automatic transmission.
Power train, Jan 30, 2026
THE TRANSMISSION FAILED SUDDENLY.
Power train, Jan 19, 2026
Our 2020 Highlander with 45,000 miles started making a whining noise when accelerating. After the Toyota garage looked at it we were told that we needed a full transmission replacement. No warning lights came on alerting of us of problem. We were also told by the service depart that they are not surprised there hasn’t been a recall due to how many transmissions they have replaced on these vehicles and especially this type of transmission. Upon researching this particular issue, It is a wide known issue with class action lawsuits. New transmissions are also only carrying a 1 year warranty. That is hardly a warranty on a costly repair. It will cost us out of pocket $8,000 for a vehicle that is meticulously maintained and with only 44,000 miles. These vehicles are still being sold putting myself, my family and many more Americans as risk.
Power train, Jan 18, 2026
I have experienced ongoing transmission problems, including but not limited to rough shifting, delayed acceleration, jerking while driving, and abnormal noises. These issues have significantly affected the safety, reliability, and drivability of my vehicle. This transmission failure significantly undermines Toyota’s long-standing reputation for reliability and has substantially reduced the value of my vehicle.
Power train, Jan 13, 2026
Whine noise when you accelerate coming from the automatic transmission. Car is hesitant in shifting gears when needing to accelerate causing safety issues/concerns while driving due to the inconsistency. Toyota dealer as inspected the vehicle and recommended a transmission replacement. Dealer has filed a claim with Toyota to see if it will be covered or not. Total price of repair quoted from dealer was $8700.00. I am also being told there is a back order on parts related to the repair of the vehicle and that the amount of vehicles with this issue are increasing in numbers each day. I purchased this vehicle new in 2020 and have been the sole owner.
Power train, Jan 11, 2026
Transmission is presenting a high-pitched whining noise.
Power train, Dec 31, 2025
The contact's wife owns a 2020 Toyota Highlander. The contact stated that soon after purchasing a new set of tires, the vehicle made an abnormal rattling sound upon acceleration. The vehicle was taken to a dealer for an oil change and tire rotation, and the contact was informed that no defect was found on the vehicle. As the failure persisted, the vehicle was taken back to the shop, where the tires were purchased. The contact was informed that there was no defect in the tires, and the failure might be related to the differentials of the vehicle. The vehicle was taken back to the dealer, where it was diagnosed with transmission failure. The manufacturer was then notified of the failure, and the contact was offered partial financial assistance towards the purchase of a new engine. The vehicle was not repaired. The failure mileage was approximately 55,000.
Power train, Dec 29, 2025
My 2020 Highlander developed a whining or grinding noise consistent with the Technical Service Bulletin. I took it to a Toyota Dealership for diagnostic and they confirmed the whining and hissing sound. They said it would cost $9,000 to repair. I called Toyota to request a goodwill repair and they denied me. Toyota case number: 251229000423. The car does not feel safe to drive. We worry that at any moment the car could break down with our children inside. The problem was reproduced at a dealer and inspected. There were no warning lamps or messages, just the obvious sound coming from the transmission.
Power train, Dec 27, 2025
Shortly after the powertrain warranty expired, the automatic transmission in my 2020 Toyota Highlander began producing a loud whining/howling noise during normal driving. The noise appears to come from the transmission area and increases with vehicle speed. The issue was not present during the warranty period and began unexpectedly soon after expiration. The abnormal noise raises concerns about internal transmission failure and potential loss of drivability. This condition could pose a safety risk if the transmission were to fail while driving, especially at highway speeds or when merging into traffic. No warning lights or messages were displayed prior to or during the issue. The vehicle was inspected by a Toyota dealer, and the problem was confirmed to be related to the transmission.
Power train, Dec 22, 2025
Transmission stutters. Only has 32000 miles.
Power train, Dec 19, 2025
Transmission whines in low gear.
Power train, Dec 9, 2025
Transmission failure. Noticed whining when driving, took to local Toyota dealership and they diagnosed transmission failure. They quoted $12,000 for transmission replacement and confirmed that this is a known issue with certain years/models of Toyota Highlander. Ours is a 2020.
Power train, Dec 4, 2025
The vehicle’s automatic transmission (power train) has developed a loud whining/whirring noise under acceleration. This noise increases with engine load and indicates internal mechanical failure. The transmission is still installed in the vehicle and is available for inspection upon request. This issue poses a safety risk because it causes hesitation and unpredictable acceleration behavior while merging or crossing traffic. There is also concern that the transmission could suddenly fail while driving, resulting in loss of propulsion and potentially causing an accident. The problem has been inspected and confirmed by a Toyota dealership, which advised that the entire transmission needs to be replaced at a cost of over $8,000, despite the vehicle having only approximately 77,000 miles. The vehicle has been inspected by a Toyota manufacturer service center. They identified the transmission failure but stated there are no current recall programs covering this specific VIN. No warning lights or error messages were displayed at any time before or during the failure. The first noticeable symptom was the transmission whining/whirring noise during acceleration, which began around 77,000 miles and continues to worsen.
Power train, Dec 1, 2025
Road noise was very loud. I thought it was a bearing and I took it to the shop and found out that the 'transfer box' on the side of the transmission had to be replaced. I was told that not replacing it could lead to major transmission failure. This cost $6000. Mechanic said it's unusual. Upon reading the internet I'm learning that I'm not the only one this and similar problems.
Power train, Dec 1, 2025
TRANSFER CASE MAKING ROTATIONAL BEARING NOISE FLUID HAVE LOTS OF METAL DEBRI
Power train, Nov 20, 2025
While driving and/or accelerating you can feel some harsh shifts as well as slipping and shuttering with only 84k miles on this vehicle.
Power train, Nov 16, 2025
Transmission malfunction that left us on the highway with no power and in an unsafe situation. Not confirmed as of yet. At dealership tomorrow. No inspection completed by parties listed above. Check engine light appeared prior to malfunction.