The contact owns a 2025 Toyota Tundra. The contact stated that while driving at 45 MPH on the highway, there was an abnormally high-pitched whistling sound coming from the vehicle. The contact stated that the sound became louder while accelerating. The contact stated that the sound was very distracting. The driver turned the radio up to drown out the abnormal sound. The contact discovered that the sound was coming from the driver’s side mirror. There were no warning lights illuminated. The vehicle was taken to the local dealer, who was able to duplicate the sound but had not determined the cause or how to fix the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case, but no additional assistance was provided. The failure mileage was approximately 10.