The contact owns a 2022 GMC Sierra 1500. The contact stated while driving 70 MPH over a bump in the roadway, there was a huge cloud of white smoke coming from the vehicle and the vehicle started to lose motive power. The check engine warning light was illuminated. The contact pulled over to the side of the roadway and waited for a tow truck to arrive. The contact attempted to start the vehicle again, but the vehicle failed to start. The vehicle was towed to the dealer where it was diagnosed with engine failure due to coolant mixing with the engine oil. The local dealer was contacted; however, the vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 6,607.