Automatic Transmission Torque Converter problems of the 2019 Toyota Highlander

I heard whining noise from drivetrain side under engine room first time about a month ago. There is a possibility sure it was generated early that noise longer than when I heard it. And I visited Toyota dealership vacaville CA about this issue, requested to diagnosis my Highlander 2019 xle gas type vehicle. Technician said, "found whine coming from transaxle assembly indicating internal failure". Service advisor recommended to replace "ua80e transaxle assembly + torque converter and recheck". And I found issue about there is a document (TSB 0008-21) about this my Highlander 2019 xle. I did not receive any information or recall or contact from Toyota until when I realized it.

The contact owns a 2019 Toyota Highlander. The contact stated that while driving at various speeds, there was an abnormal whining sound coming from the transmission. Later, while the contact’s wife was driving approximately 50 mph, the vehicle went into limp mode and decelerated unexpectedly. The contact diagnosed the vehicle and determined that there was a failure with the torque converter. The local dealer was notified of the failure, but no assistance was provided. The vehicle was not repaired. The manufacturer was not yet notified of the failure. The failure mileage was 128,000.