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
317 reports, newest first.
Other or unspecified, Dec 13, 2025
Lift gate does not close and it just beeps. Needs to be closed manually. Toyota has known this issue for a long time but failed to address. Repairs are costly and reduces my cars value
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
Other or unspecified, Nov 30, 2025
Lift gate not closing Car gas a whining noise upon acceleration
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.
Service brakes, Nov 13, 2025
When braking, and decelerating through 25 to 20 MPH, the brakes temporarily stop functioning. There is a noticeable change in deceleration that can be felt by the driver AND passengers. This almost feels like an acceleration, but we believe it's the brakes briefly stop functioning. The same problem occurs with different drivers so we are confident the problem is mechanical and not operator dependent. We believe this is a brake actuator issue and there may have been a similar problem in earlier model Toyotas.
Air bags, Nov 5, 2025
I received a safety recall notice from Toyota (Recall No. 23TA15 / 23TB15) for the front passenger Occupant Classification System (OCS) sensors. The letter states that the airbag system may not deploy correctly and that the remedy is not yet available. I’m concerned for my safety and my passengers since the airbag system could fail in a crash. Toyota has not provided a repair timeline or an alternative vehicle. I’ve contacted my dealer and Toyota customer service but was told there’s no fix yet. I would like NHTSA to investigate the delay and require Toyota to provide an immediate remedy or alternate transportation. Symptoms: •Airbag light may remain on or system disabled •Unable to safely seat a passenger in the front seat •No repair currently available despite safety risk Remedy status: •Remedy not available
Other or unspecified, Nov 4, 2025
The 8 speed automatic transmission is failing at 100k miles. Whining noises are heard and after being taken to Toyota dealerships mechanic, we were told that the gear mesh or bearing is bad and that we'll need to replace the transmission. We were told that many other highlanders have experienced the same issues. No light popped up before or during driving while the transmission is whining.
Other or unspecified, Nov 3, 2025
We were driving on the highway and heard what sounded like a gun shot. Our sunroof had exploded. Luckily the interior door was closed or we would have been showered with glass. There was no one around, no rocks or road debris. It just came out of nowhere!
Power train, Nov 3, 2025
The car started making whining noises when pressing the gas pedal. Toyota reported "noise from transaxle final drive. recommend replace. vehicle ok to drive but noise will continue until transaxle is replaced." There are no warning lights, messages or other symptoms prior to the sound starting or currently. This is a known issue with its 8-speed automatic transmission (UA80E/UA80F) that can cause whining, erratic shifting, and premature failure. This issue is the subject of a Customer Support Program (CSP ZJC) and several lawsuits, but the program has limited coverage for VINs, leading to owner complaints about a lack of assistance from Toyota.
Power train, Oct 31, 2025
After my 75000 mile inspection at my Toyota dealership, which is required and I have been bring my vehicle in every 5,000 miles. I started hearing a slight whinny noise. I thought it was around my wheels or tires. Then I thought it must be a new wind noise. Which that is another issue. I took a short trip and by the time I got back it was louder. I took it to the dealership and the technician drove it and said I need a new transmission. I ask my service provider if he has seen any other vehicles having this problem? And I should not have any transmission issues at this mileage. My service provider stated that he knows of highlanders having this issues.
Power train, Oct 29, 2025
At around 45,000 miles, my 2020 Toyota Highlander started making a whining noise on acceleration. This condition seemed to get worse (whining got louder) I took it to a Toyota dealership and they said there are no codes left by the vehicle but the repair technician knows that this whine is related to a total transmission failure so the recommendation is to replace the transmission at a cost of approximately $8000, Toyota said the vehicle is out of warranty (by 4 months) so they will offer nothing to assist with the repair. Looking on the internet and this website, it is very clear that this is a common issue with this model of vehicle. Dealer said I can drive it but eventually the transmission will fail, leaving me stranded on the roadside.
Structure, Oct 19, 2025
We own a 2020 Toyota Highlander, and both of the exterior door handles for the backseat have broken. The first in Jan 2025 and the second a few days ago. When the first was repaired (a different door) I was told this happens often on Toyota doors and is to be expected. If this is true why are stronger components not being used in manufacturing? The first doorhandle was replaced totaling $370 and now we are going to have to replace the second. It is disheartening to know that you can purchase a car that is supposed to be so safe, but if something were to happen I might not have a way to open the door to get to my children in the back seat.
Engine, Oct 14, 2025
While on the freeway vehicle stalled when accelerating and engine stopped, I had to pull over to the side of the road to avoid accident. Turned vehicle back on and started making a whinning noise. Vehicle was taken in and found out the transmission is no good at 89k. Also found out that a lot of people that purchased this vehicle are having the same issue.
Electrical system, Oct 11, 2025
DOOR LOCKS DO NOT LOCK OR UNLOCK WITH THE CAR FOB, NOW ONLY THE DRIVER'S SIDE DOOR DOES NOT UNLOCK WITH THE FOB, YOU HAVE TO UNLOCK FROM THE PASSENGER SIDE
Power train, Oct 8, 2025
UNKNOWN, dealers are reporting 1-2 2020-2022 Highlanders are needing completely transmission replacements at 8-10k in cost. They are all failing and toyota knows this.
Power train, Oct 7, 2025
I am filing a complaint with the NHTSA regarding persistent transmission slipping in my 2020 Toyota Highlander LE equipped with the UA80-E 8-speed automatic transmission. Since reaching approximately 55,000 miles, I have experienced noticeable slipping, characterized by delayed acceleration, erratic shifting, and occasional lurching, which align with documented defects in the UA80 platform as outlined in over 430 NHTSA complaints and Toyota’s Technical Service Bulletins (e.g., T-SB-0160-18 and T-SB-0008-21). These issues stem from a known manufacturing flaw involving a washer tab failing to secure the counter drive gear’s retaining nut, leading to gear movement, internal wear, and symptoms like mine. This defect, prompting Toyota’s Customer Support Program ZJC for 2017–2018 models and reported in later years like 2020, compromises vehicle safety and reliability, as slipping can cause unpredictable handling. I urge the NHTSA to investigate further and hold Toyota accountable for addressing this widespread issue across affected models.
Power train, Oct 3, 2025
Whining noise when accelerating. Took it to toyota dealership and confirm it was the transmission .toyota corporate would not assist repair cost as my warranty is 7k miles pass warranty mark..did a research about the transmission and there is a class action law suit about the faulty transmission
Power train, Engine, Sep 27, 2025
On September 2, 2025, the vehicle’s Hybrid System shut down on cold start and the vehicle would not start. A dealer inspection reported coolant had entered cylinder #4, allegedly causing the engine block to warp, the cylinder head to crack, and the head gasket to fail. This was a sudden catastrophic engine failure on a five-year-old vehicle with no prior overheating warnings, no dashboard alerts, and no performance issues in the days leading up to the failure. It is highly unlikely for an engine block to warp without sustained overheating, yet the failure occurred on a cold start. The dealership itself described this as a “premature failure” in their service report. At approximately 26,000 miles, the vehicle’s coolant thermostat failed and was replaced under warranty. If the thermostat stuck closed even briefly, the engine could have experienced one or more silent overheat events that never registered on the dashboard. In aluminum blocks, even short bursts of high localized heat can create latent distortion that doesn’t cause immediate problems but can eventually lead to catastrophic failure years later. Safety Risk: – Vehicle became disabled suddenly without warning. – Engine failure occurred without overheating symptoms, creating risk of sudden shutdown during use. Problem Confirmation: – Engine failure confirmed by a Toyota-authorized dealer. – Dealer service report explicitly called this a “premature failure.” Warning Lamps / Symptoms: – A check engine light appeared briefly three days before failure, then cleared on its own. – No overheating warnings or drivability issues were observed prior to failure.
Power train, Sep 24, 2025
The contact owns a 2020 Toyota Highlander. The contact stated that while driving at 30 MPH, there was an abnormal whining sound coming from underneath the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the transmission. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 78,000.
Power train, Sep 23, 2025
All of the sudden around 70K miles, the transmission started to make a "whining" noise. It does not sound right and I'm afraid the transmission could fail while I'm driving. I took it to the dealer and they acknowledged that it's a known issue but that in my case the noise is not loud enough to warrant replacing the transmission. A quick research on the internet revels that this is a very common problem.
Power train, Sep 22, 2025
TOYOTA HIGHLANDER 2020 less than 5 years 63,000 miles started making noise Dealer where i bought it; said my warranty expired with 60,000 miles , so i have to pay transmission replace close to $9,000 , obviously this is a Toyota fabrication problem they need to assume responsibility .