Transmission complaints owners filed with the U.S. government (NHTSA) for each model year, per 100,000 cars sold. A complaint counts when it's filed under the transmission, or under the power train and the owner describes the transmission (shifting, slipping, gears, CVT). It's an owner's report, not a confirmed defect, and older years have had longer to collect complaints.
What owners describe
Share of this model's transmission complaints that mention each symptom. One complaint can mention several.
In owners' words
Transmission went out at 94,000 mils. Loud whinning noise and vechicle very loud sounds like a disel truck once cranked.
2021 Toyota Highlander owner · NHTSA complaint
Transmission is making a loud whine when accelerating. Dealer says the transmission cannot be repaired and must be replaced
2021 Toyota Highlander owner · NHTSA complaint
Quick answers
Which Toyota Highlander years have transmission problems?
By transmission complaints filed with NHTSA per car sold, the worst Toyota Highlander years are 2019, 2021, 2020.
What are common Toyota Highlander transmission problems?
Owners most often describe delay or hesitation, transmission replaced, hard or jerky shifting.
Which Toyota Highlander years have the fewest transmission complaints?
Since 2010, the Toyota Highlander years with the fewest transmission complaints per car sold are 2016, 2024, 2015.
See every problem, not just the transmission: Toyota Highlander reliability by year. How we count
