NHTSA Complaint #11707470 — 2020 TOYOTA HIGHLANDER

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number	11707470
Vehicle	2020 TOYOTA HIGHLANDER
Component	POWER TRAIN
Date of Incident	November 1, 2025
Date Filed	December 29, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	TX

Consumer Description

My 2020 Highlander developed a whining or grinding noise consistent with the Technical Service Bulletin. I took it to a Toyota Dealership for diagnostic and they confirmed the whining and hissing sound. They said it would cost $9,000 to repair. I called Toyota to request a goodwill repair and they denied me. Toyota case number: 251229000423. The car does not feel safe to drive. We worry that at any moment the car could break down with our children inside. The problem was reproduced at a dealer and inspected. There were no warning lamps or messages, just the obvious sound coming from the transmission.

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