The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving 20 MPH and approaching a light, there was an abnormal ticking and knocking sound coming from the vehicle. There were no warning lights illuminated. The contact stated that the vehicle failed to accelerate above 25 MPH. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The vehicle was taken to an independent mechanic who determined that the vehicle had experienced engine failure. The vehicle was taken to an unknown local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no further assistance was provided. The failure mileage was 132,000.