The contact owns a 2023 Cadillac Escalade ESV. The contact stated that while operating the vehicle, there was an abnormal knocking sound coming from the engine compartment. The contact stated while her husband was driving later, the vehicle failed to exceed 50 MPH. No warning light was illuminated. The vehicle was towed to the local dealer, where it was diagnosed with internal engine failure. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 64,000.