The contact owns a 2026 Lexus TX 350. The contact stated that after an extended driving period, the vehicle was parked in the garage, and the contact became aware of a strong gasoline odor. The fumes caused persistent headaches that lasted two days. The contact had not sought medical attention. Upon inspection, the owner was unable to locate a visible fuel leak. The vehicle was moved to the driveway and was later towed to the dealer. After an extensive diagnostic test was performed by the dealer, the cause of the failure was not yet determined. The vehicle remained with the dealer and was not repaired. The manufacturer was notified of the failure, and the contact was provided a case number. The failure mileage was 3,563.