MileageCurve What breaks, and at what mileage

Toyota Highlander 2020–2025

4th generation (XU70) · XU70 (TNGA-K) · 1,575 complaints, 184 with mileage

Owners filed 1,575 complaints with NHTSA about the 2020–2025 Toyota Highlander, and 184 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.

39% of failures fall within the first 12,000 miles. Failures clustered that early usually indicate a design or manufacturing problem rather than wear.

The most-reported areas are the transmission and driveline (24.6% of complaints, typically around 71,116 miles), body structure (10.2% of complaints, typically around 30,000 miles), the airbag system (6.9% of complaints, typically around 50,500 miles).

14 recall campaigns cover this generation.

When failures happen

0–5k: 49 complaints (26.6%)0–5k5–10k: 16 complaints (8.7%)10–20k: 27 complaints (14.7%)10–20k20–30k: 15 complaints (8.2%)30–40k: 12 complaints (6.5%)30–40k40–50k: 13 complaints (7.1%)50–60k: 16 complaints (8.7%)50–60k60–70k: 7 complaints (3.8%)70–80k: 9 complaints (4.9%)70–80k80–90k: 5 complaints (2.7%)90–100k: 2 complaints (1.1%)90–100k100–120k: 3 complaints (1.6%)120–140k: 5 complaints (2.7%)120–140k140–160k: 3 complaints (1.6%)160–200k: 0 complaints (0.0%)160–200k200k+: 2 complaints (1.1%)490

10% of failures occur by 950 miles · a quarter by 4,800 · median 19,500 · three quarters by 55,000 · 90% by 85,000. Based on 184 complaints that record mileage.

What fails, and when

SystemComplaintsShareTypical mileageMiddle half
Power Train38724.6%71,11659,000–100,100
Unknown Or Other18511.7%
Structure16010.2%30,0009,206–50,000
Service Brakes16010.2%
Air Bags1086.9%50,50031,000–67,080
Engine1016.4%6,0002,000–45,600
Fuel/Propulsion System785.0%1,475600–5,000
Electrical System774.9%17,7814,800–57,000
Forward Collision Avoidance513.2%
Vehicle Speed Control382.4%

By model year

YearComplaintsWith mileage
202036374
202161248
202230332
202323024
2024544
2025132

Which systems, and when

Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 19,500 miles; the figures below show which parts of the car run ahead of that and which run behind.

The transmission and driveline accounts for 24.6% of complaints (387 reports, 28 of them with a mileage figure), and it fails late — a median of 71,116 miles, considerably beyond the vehicle's overall median. That pattern is consistent with normal service life rather than a defect, though it matters for anyone buying an example already near that mileage. The middle half of these reports falls between 59,000 and 100,100 miles.

Body structure accounts for 10.2% of complaints (160 reports, 35 of them with a mileage figure), and it fails late — a median of 30,000 miles, considerably beyond the vehicle's overall median. That pattern is consistent with normal service life rather than a defect, though it matters for anyone buying an example already near that mileage. The middle half of these reports falls between 9,206 and 50,000 miles.

The airbag system accounts for 6.9% of complaints (108 reports, 10 of them with a mileage figure), and it fails late — a median of 50,500 miles, considerably beyond the vehicle's overall median. That pattern is consistent with normal service life rather than a defect, though it matters for anyone buying an example already near that mileage. The middle half of these reports falls between 31,000 and 67,080 miles.

The engine accounts for 6.4% of complaints (101 reports, 12 of them with a mileage figure), and it fails early — a median of 6,000 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 2,000 and 45,600 miles.

The fuel and propulsion system accounts for 5.0% of complaints (78 reports, 18 of them with a mileage figure), and it fails early — a median of 1,475 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 600 and 5,000 miles.

The electrical system accounts for 4.9% of complaints (77 reports, 15 of them with a mileage figure), with a median of 17,781 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 4,800 and 57,000 miles.

Differences between model years

Within this generation, complaint volume is not constant across model years. The 2021 model year drew the most — 612 complaints — while 2024 drew the fewest at 54. The median year sits at 303.

That makes 2021 an outlier: roughly 2.0 times the median year of this generation. A single year standing that far apart usually reflects either a first-year issue that was later corrected, or a component change introduced for that year. Anyone shopping this generation has a straightforward reason to prefer a different year, all else being equal.

Recalls and what they cover

NHTSA records 14 recall campaigns covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.

The campaigns cluster around the airbag system (3), equipment (2), the tyres (2). Repeated recalls against the same area of the car generally mean the first remedy did not fully resolve the underlying problem.

Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.

Reported severity

Of the 1,575 complaints filed against this generation, 114 reported a crash; 7 reported a fire; 107 reported an injury; 3 reported a fatality. Crash-involved reports represent 7.2% of the total.

These are owner-reported outcomes, not verified investigations, and they are not adjusted for how many of these vehicles are on the road. They are included because the distinction between a fault that strands a car and a fault that causes a collision is the one that matters most, and it is not visible in a complaint count alone.

What this means if you are buying one

For a buyer, an early-failure pattern is comparatively good news on a used example: 39% of the reported failures occur in the first 12,000 miles, which on a car of this age means they have already happened or they were never going to. Service history matters more than mileage here.

On inspection, the transmission and driveline and body structure are where this generation's reports concentrate, so those are the areas worth a specific look. Body structure in particular shows a median failure mileage of 30,000, which gives a concrete number to compare against the odometer of any car you are considering.

None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.

Documented problems

Fuel system 2020-2021

Denso low-pressure fuel pump recall extends into the early years of this generation.

Engine 2023-2025

The 2023 switch from the long-serving 2GR-FKS V6 to the T24A-FTS turbo four is a major mid-generation powertrain change; the turbo four has no established long-term failure record yet and should be tracked separately from the V6 years on the page.

Recalls (14)

CampaignDateComponent
25V8720002026-01-20Seat Belts:Rear/Other:Anchorage
25V7440002025-12-05Back Over Prevention:Display Function
25V5950002025-12-05Electrical System: Instrument Cluster/Panel
25V0400002025-03-17Air Bags:Frontal:Driver Clockspring/Spiral Cassette
23V8650002024-10-31Air Bags:Sensor:Occupant Classification
24V5480002024-09-16Equipment:Other:Labels
24V4520002024-08-16Tires
24V4190002024-08-08Tires
23V7200002024-04-22Structure:Body:Bumpers
23V4800002023-09-08Air Bags:Frontal:Driver Clockspring/Spiral Cassette
22V3100002022-06-30Equipment:Other:Labels
20V6330002020-12-11Seats
20V1620002020-05-15Engine
26V128000Seats:Mid/Rear Assembly:Recliner

What owners reported

2020 · 89 miles · Suspension
SUSPENSION IS VERY LOUD AND TIGHT, THE CABIN NOISE IS VERY NOISY IT CAN HIT 95 DECIBELS ON SOUND PRESSURE LEVEL METER. THE NOISE IS SO BAD THAT I DO NOT WANT TO DRIVE THE VEHICLES ANY MORE UNLESS I TURN THE RADIO VOLUME UP AND I CAN NOT HEAR EMERGENCY VEHICLES.THE SERVICE PEOPLE SAID THAT IS NORMAL.THE VEHICLE NOISE CAN BE UNBEARABLE AT TIMES.IWONDER WHAT IT DOING TO MY HEARING.THE VEHICLE WAS LIK…
2020 · 300 miles · Engine
AFTER LEAVING A SHOPPING CENTER ON FEBRUARY 29 2020, WE PULLED OUT ONTO A ROAD TO HEAD TOWARDS HOME. WE WERE DRIVING ABOUT 45 MILES PER HOUR IN TRAFFIC AND RECEIVED A NOTIFICATION ON THE SCREEN THAT SAID THE ENGINE WAS OFF, PUT CAR IN PARK. THERE WAS ALSO A WARNING LIGHT THAT CAME ON FOR THE ELECTRONIC STEERING ASSIST WITH AN EXCLAMATION POINT. WE WERE ABLE TO COAST TO THE SIDE OF THE ROAD TRYI…
2020 · 300 miles · Steering
AFTER LEAVING A SHOPPING CENTER ON FEBRUARY 29 2020, WE PULLED OUT ONTO A ROAD TO HEAD TOWARDS HOME. WE WERE DRIVING ABOUT 45 MILES PER HOUR IN TRAFFIC AND RECEIVED A NOTIFICATION ON THE SCREEN THAT SAID THE ENGINE WAS OFF, PUT CAR IN PARK. THERE WAS ALSO A WARNING LIGHT THAT CAME ON FOR THE ELECTRONIC STEERING ASSIST WITH AN EXCLAMATION POINT. WE WERE ABLE TO COAST TO THE SIDE OF THE ROAD TRYI…
2020 · 473 miles · Fuel/Propulsion System
I PURCHASED A 2020 TOYOTA HIGHLANDER HYBRID AWD IN MAY 2020. IN JUNE 2020, I NOTICED A DISCREPANCY BETWEEN THE GAS GAUGE ABS THE DISTANCE TO EMPTY INDICATOR. THE GAS GAUGE SAID THERE WAS 3/4 OF A TANK LEFT BUT THE DTE SAID I HAD ONLY 43 MILES. I WENT TO THE GAS STATION TODAY (OCTOBER 2020) TO FILL UP MY VEHICLE AND FILLED IT UNTIL THE GAS SHUT-OFF TRIPPED. I TURNED ON MY CAR AND NOTICED THAT MY GA…

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