The contact owns a 2020 Acura RDX. The contact stated while driving 25 MPH, there was a popping sound coming from the rear of the vehicle and the contact became aware that the rear window glass had shattered. No warning lights were illuminated. The local dealer was contacted; however, the vehicle was not diagnosed. The VIN was not under recall for the failure. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 55,000.