NHTSA Complaint #11606491 — 2019 TOYOTA HIGHLANDER

The contact owns a 2019 Toyota Highlander. The contact stated while driving at an undisclosed speed and attempting to accelerate, the vehicle hesitated and was sluggish while responding. There was an abnormal humming noise detected. There were no warning lights illuminated. The vehicle was taken to the local dealer, where the transmission was replaced, but the failure recurred. While driving 71 MPH and merging into traffic while accelerating, the vehicle failed to respond. The contact was able to veer to the shoulder. The vehicle was taken back to the local dealer; however, the dealer was unable to duplicate the failure. There were no fault codes retrieved. The mechanic at the dealer reported that during the test drive, there was hesitation while downshifting. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 16,000.