NHTSA Complaint #11670858 — 2020 TOYOTA HIGHLANDER

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11670858
Vehicle	2020 TOYOTA HIGHLANDER
Component	POWER TRAIN
Date of Incident	July 2, 2025
Date Filed	July 2, 2025
Mileage	129,000 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	OH

Consumer Description

The contact owns a 2020 Toyota Highlander. The contact stated while driving at an undisclosed speed and attempting to accelerate, there was abnormal whining sound coming from underneath the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the transmission assembly. The vehicle was not repaired. After investigating the failure, the contact related the failure to Customer Support Program: POL 19-04. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 129,000.

Related Complaints for the 2020 TOYOTA HIGHLANDER

Other POWER TRAIN Complaints

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#11714593 — January 30, 2026 — THE TRANSMISSION FAILED SUDDENLY.

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#11711712 — January 18, 2026 — I have experienced ongoing transmission problems, including but not limited to rough shifting, delayed acceleration, ...

#11710814 — January 13, 2026 — Whine noise when you accelerate coming from the automatic transmission. Car is hesitant in shifting gears when needin...

Recent Complaints for the 2020 TOYOTA HIGHLANDER

#11719509 — VEHICLE SPEED CONTROL — February 20, 2026 — At approximately 120,000 miles, the vehicle began exhibiting a pronounced shudder or vibration between 40–50 mph unde...

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#11711802 — UNKNOWN OR OTHER — January 19, 2026 — Premature transmission failure. Vehicle had less than 100K miles. Took the vehicle in for an oil change before a lo...

#11711392 — BACK OVER PREVENTION: SENSING SYSTEM: CAMERA — January 16, 2026 — The contact owns a 2020 Toyota Highlander. The contact stated that while reversing, the rear-view camera screen displ...

#11709295 — UNKNOWN OR OTHER — January 7, 2026 — The sunroof suddenly exploded while stopped at a stoplight. Luckily I had the interior slide shut otherwise we would ...