2020 Toyota Highlander Power Train Problems

Source: NHTSA · Updated Oct 11, 2026 · 126 complaints analyzed

Owners have filed 126 complaints with NHTSA about power train problems on the 2020 Toyota Highlander, 39% of all complaints for this model year. Half of the reports with a mileage happened before 73,000 miles. The words owners use most often: “whining noise” (27% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Whining noise: mentioned in 34 of 126 complaints (27%)
  • Started making: mentioned in 11 of 126 complaints (9%)
  • High pitched: mentioned in 8 of 126 complaints (6%)
  • UA80 transmission: mentioned in 7 of 126 complaints (6%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical power train repair on the 2020 Toyota Highlander at $9,300, and half of them between $8,050 and $9,950.

Based on 18 NHTSA complaints about this problem alone that state a repair bill or quote (2024–2026), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do power train problems happen?

Based on 15 complaints that reported the odometer reading.

Under 10k miles1 · 7%
10k–25k miles0 · 0%
25k–50k miles1 · 7%
50k–75k miles6 · 40%
75k–100k miles3 · 20%
100k–150k miles4 · 27%
150k+ miles0 · 0%

How serious are the reports?

Of 126 complaints, 2 mention a crash, 1 an injury.

Toyota Highlander power train complaints by model year

Peak: 2021, with 227 complaints
2001: 1320012002: 142003: 1320032004: 582005: 5120052006: 222007: 820072008: 182009: 720092010: 62011: 1620112012: 72013: 1120132014: 92015: 720152016: 12017: 7620172018: 682019: 20520192020: 1262021: 22720212272022: 542023: 2020232024: 32026: 12026

n = 1,041 complaints · Source: NHTSA

Model yearPower Train complaintsShare of that yearMedian miles
2026 Highlander125%—
2024 Highlander37%—
2023 Highlander2011%—
2022 Highlander5421%98,000
2021 Highlander22743%59,674
2020 Highlander12639%73,000
2019 Highlander20541%64,000
2018 Highlander6825%95,170
2017 Highlander7628%20,000
2016 Highlander11%—
2015 Highlander74%80,000
2014 Highlander97%53,622
2013 Highlander115%16,000
2012 Highlander74%12,500
2011 Highlander169%17,000
2010 Highlander63%66,000
2009 Highlander75%7,824
2008 Highlander184%12,000
2007 Highlander86%14,045
2006 Highlander228%42,195
2005 Highlander5123%45,000
2004 Highlander5820%10,000
2003 Highlander135%65,725
2002 Highlander145%107,000
2001 Highlander139%70,750

When owners reported it

Peak: 2025, with 63 complaints
2020: 2202022023: 3202332024: 182024182025: 632025632026: 40202640

n = 126 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists power train for the 2020 Toyota Highlander. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

• What component or system failed or malfunctioned, and is it available for inspection upon request? The UA80 8-speed automatic transmission assembly (specifically internal mechanical wear resulting from front carrier assembly bearing degradation/torque converter heat buildup). No, the component…

Received Oct 2, 2026 · NHTSA complaint 11768515

My Highlander started making a whining noise while accelerating. Took it to my local dealership and was told I need a new transmission. I have 87,000 miles on it! Total cost = $8,000.

Received Sep 17, 2026 · NHTSA complaint 11765030

At 51,000 mile the transmission started making a whining noise. Took it to the dealer and they stated the transmission needs replacement.

Received Sep 7, 2026 · NHTSA complaint 11762589
Toyota Highlander
A 2020 Toyota Highlander XLE AWD photographed in Wantagh, New York, USA. Representative photo; appearance varies by model year. Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons.

Frequently asked questions

Do all 2020 Toyota Highlanders have power train problems?

No. NHTSA has 126 owner complaints about power train for the 2020 Toyota Highlander (39% of the 320 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2020 Toyota Highlander power train?

No recall currently lists power train for this vehicle.

At what mileage do power train problems start?

The median reported mileage is 73,000 miles: half of the reports with a mileage came before that.

How much does it cost to fix power train problems on the 2020 Toyota Highlander?

Owners report a typical cost of $9,300 (half paid between $8,050 and $9,950), from 18 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about power train problems on the 2020 Toyota Highlander?

The most frequent phrase is “whining noise”, in 34 of 126 complaints, followed by “started making” (11).

See all 2020 Toyota Highlander problems or power train problems across all Highlander years.