Complaint volume
299 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
2020 Toyota Highlander Complaints
299 consumer-submitted complaints on record for the 2020 Toyota Highlander, grouped by component category.
299 Total complaints
13 Crash reports
0 Fire reports
11 Injury reports
Complaint data reflects consumer-submitted reports. A complaint is not proof
of a defect, recall, or manufacturer fault. Enriched severity fields come
from official bulk records when the complaint can be matched by ODI number.
Buyer interpretation
How to use these complaints before buying
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
Pattern to inspect
The most common categories are power train, unknown or other, air bags. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Severity flags
Enriched records include 13 crash reports, 0 fire reports, 11 injury reports, and 0 fatality reports. These fields come from complaint records and should be read in context.
Mileage clue
Mileage is available on 57 complaints, with an average reported failure mileage of 38,699 miles. Compare that with the mileage on the listing.
Questions to ask the seller
- Have you had any problems related to power train, unknown or other, air bags?
- Can I see recent maintenance and repair records?
- Has the vehicle ever been towed, involved in a crash, or repaired for the same issue twice?
- Can we also check the recall record for this 2020 Toyota Highlander?
Used-car checklist
Use these complaints before the test drive.
Build a buyer checklist to turn these issues into questions and inspection points.
2020 Toyota Highlander
Build buyer checklist Compare with other years Sends year, make, and model to pre-fill your checklist.
How severe are the 2020 Toyota Highlander complaints?
13 Crash
0 Fire
11 Injury
0 Fatality
11 Towed
8 Medical attention
What are the most common 2020 Toyota Highlander complaint categories?
POWER TRAIN 112
UNKNOWN OR OTHER 33
AIR BAGS 30
SERVICE BRAKES 27
STRUCTURE 21
FUEL/PROPULSION SYSTEM 16
ELECTRICAL SYSTEM 7
ENGINE 6
SEAT BELTS 6
STRUCTURE:BODY 5
299 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| Dec 2025 | POWER TRAIN | 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. | Crash: No Fire: No | 55,000 |
| Dec 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | Transmission stutters. Only has 32000 miles. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | Transmission whines in low gear. | Crash: No Fire: No | Unknown |
| Dec 2025 | STRUCTURE | The contact owns a 2020 Toyota Highlander. The contact received notification of NHTSA Campaign Number: 23V72000 (Structure). The vehicle was taken to the dealer; however, the contact was informed that the recall could not be performed due to a damaged bumper clip. In addition, the contact stated that the vehicle was taken to the dealer several times, however the recall repair was not performed. The manufacturer was made aware of the failure and a case was filed. The manufacturer denied performing the recall repair. | Crash: No Fire: No | Unknown |
| Dec 2025 | STRUCTURE:BODY | The rear hatch door will not close or open and just sit there.And dings, you have to manually close it and open it most times and it never fully sucks up and latches fully and it doesnt notify you on the hood display of the car , so when we were driving down the road, we heard loud hissing and road noise coming from the rear and come to find out the rear hatch had never fully closed or latched itself fully.And it hangs up constantly. | Crash: No Fire: No | Unknown |
| Dec 2025 | UNKNOWN OR OTHER | 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 | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | TRANSFER CASE MAKING ROTATIONAL BEARING NOISE FLUID HAVE LOTS OF METAL DEBRI | Crash: No Fire: No | Unknown |
| Nov 2025 | UNKNOWN OR OTHER | Lift gate not closing Car gas a whining noise upon acceleration | Crash: No Fire: No | Unknown |
| Nov 2025 | POWER TRAIN | While driving and/or accelerating you can feel some harsh shifts as well as slipping and shuttering with only 84k miles on this vehicle. | Crash: No Fire: No | Unknown |
| Nov 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Nov 2025 | SERVICE BRAKES | 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. | Crash: No Fire: No | Unknown |
| Nov 2025 | AIR BAGS | 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 | Crash: No Fire: No | Unknown |
| Nov 2025 | UNKNOWN OR OTHER | 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. | Crash: No Fire: No | Unknown |
| Nov 2025 | UNKNOWN OR OTHER | 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! | Crash: No Fire: No | Unknown |
| Nov 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Oct 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Oct 2025 | POWER TRAIN | 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. | Crash: No Fire: No | Unknown |
| Oct 2025 | STRUCTURE:BODY | 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. | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | 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. | Crash: No Fire: No | Unknown |
| Oct 2025 | ELECTRICAL SYSTEM | 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 | Crash: No Fire: No | Unknown |