The contact owns a 2018 Chevrolet Silverado 1500. The contact stated while driving 30 MPH, the transmission became stuck in second gear. The contact pulled over the right side of the road and turned off the vehicle for two minutes. The vehicle was then restarted and there was an abnormal banging sound coming from the gear shifter. The vehicle was taken to the dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The Insurance Company had not yet been contacted. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 141,000.