NHTSA Complaint #11609992 — 2019 TOYOTA HIGHLANDER

Approximately at 56,000 miles I began having trouble with a whining noise along with rough, delayed, or sudden shifting, lack of acceleration from a stop and shuddering. I had taken it in for an oil change and explained some of my complaints. They stated they didn't hear any whining noises (so they say) after completing the oil/fluid change. The service department said if it continues to come back and they stated that they haven't had any complaints about the whining noise with Toyota. I got "service engine light" and took it to the dealer which they said was a sensor for AWD. I paid to have it replaced and 2 days later the exact code came back up. Took it back into the Toyota dealership stating the same code came on but, to date, the dealer has been unable to correct the problem because they say it's the transmission that needs replacing which will cost over 8,500.00! My truck only has 119k miles and should be good to go for at minimum of 100k miles more with no major issues!