The contact owns a 2008 Lexus RX350. The contact stated that while driving at 40 MPH, she saw smoke coming from the front passenger seat. There were no warning lights illuminated. The contact pulled into a parking lot and parked the vehicle until the smoke vanished. The dealer was notified of the failure and advised the contact that they could not assist. The manufacturer was notified of the failure and advised the contact that an agent of the Federal Department of Agriculture would inspect the vehicle and would send them a report. The contact stated that the vehicle was taken to the same dealer and was inspected on February 10, 2021 by a Federal Department of Agriculture agent who also disconnected the heating system of the front passenger seat. The contact stated that the manufacturer had not followed up with her since then. The vehicle was not repaired. The failure mileage was approximately 160,691.