2020 Toyota Highlander Transmission and drivetrain Problems
- Complaints
- 126about this part
- Share
- 39%of 322 total for the year
- Median mileage
- 73,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 126 complaints about the transmission and drivetrain of the 2020 Toyota Highlander, 39% of the 322 complaints for this model year. Where a mileage was given, the median is 73,000 miles. 2 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My wife was driving on the highway, felt a bump and the engine RPMs spiked. The check engine light came on as well as a error message that the secondary collision braking system was disabled. The vehicle was taken to the dealership and we were told there was a internal failure in the transmission. The vehicle has approximately 80K miles.”
NHTSA complaint #11676335, filed 2025-07“Transmission going out afraid it will come apart or lose power while driving. Toyota dealership told me that we could put new transmission in but it will be the same as the one that is in it and that problem with them has not been corrected and it probably won't hold up long either. Our vehicle only has 71000 miles and we bought it new.”
NHTSA complaint #11651486, filed 2025-03“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.”
NHTSA complaint #11702304, filed 2025-12“Began hearing a high-pitched whining sound when I accelerated. Took it into the dealer and they casually told me that I needed a new transmission. My car was less than four years old, but had more than the 60,000 miles that would apply under a warranty. I am now reading online. This is a widespread problem involving Toyota Highlanders. Can’t get a new transmission for three months or more.”
NHTSA complaint #11660920, filed 2025-05“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.”
NHTSA complaint #11711712, filed 2026-01Related service bulletins
- 10201352Jul 6, 2021TT: Some 2014-2021 model year vehicles equipped with Dynamic Torque Control AWD system may experience a ?Noise? or ?Abnormal Operation? condition from the rear differential front…
- 10171406Jan 27, 2020TT: Currently under investigation. Please contact TAS if you have a vehicle that exhibits a leak from the Transmission Side Cover with no signs of damage or other conditions…
- 10169406Nov 4, 2019TT: Some 2018-2020 model year UA80/UB80 transmission equipped models may experience a leak from the Transmission Side Cover. This issue is currently under investigation. Vehicles…
- 10164330Jul 1, 2019TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections…
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 3 | 7% |
| 2023 | 20 | 11% |
| 2022 | 55 | 21% |
| 2021 | 228 | 43% |
| 2020 | 126 | 39% |
| 2019 | 214 | 42% |
| 2018 | 72 | 26% |
| 2017 | 77 | 28% |
| 2016 | 1 | 1% |
| 2015 | 7 | 4% |
| 2014 | 9 | 7% |
| 2013 | 11 | 5% |
| 2012 | 7 | 4% |
| 2011 | 16 | 9% |
| 2010 | 6 | 3% |
| 2009 | 7 | 5% |
| 2008 | 18 | 4% |
| 2007 | 8 | 6% |
| 2006 | 22 | 8% |
| 2005 | 51 | 23% |
| 2004 | 58 | 20% |
| 2003 | 13 | 5% |
| 2002 | 14 | 5% |
| 2001 | 13 | 9% |
Other parts of the 2020 Toyota Highlander
46 complaintsBrakes
41 complaintsAir bags
32 complaintsBody and structure
30 complaintsFuel system
20 complaintsElectrical system
18 complaintsEngine
17 complaintsVehicle speed control
10 complaintsForward collision avoidance
7 complaintsSeat belts
6 complaintsSteering
6 complaintsLane departure
5 complaints
← All problems reported for the 2020 Toyota Highlander
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology