The contact owns a 2019 BMW X3. The contact stated while driving approximately 46 MPH, there was an abnormal sound coming from the roof of the vehicle. The following day the contact discovered that the glass sunroof had exploded and there was a hole in the sunroof glass. The manufacturer and local dealer were notified of the failure. The cause of the failure was not yet determined. The contact stated that during the failure, the temperature was extremely cold and the heater inside the cabin of the vehicle was activated. The vehicle was not repaired. The failure mileage was 30,000.