The contact owns a 2019 Ford Expedition. The contact received notification of NHTSA Campaign Number: 26V344000 (Seat Belt). The contact stated that while driving 5 MPH with his wife seated in the passenger’s seat, the check engine warning light illuminated. The contact stated that approximately 5 minutes later, the passenger’s seat belt pretensioner exploded. The contact's wife sustained stomach bruises when the seat belt tightened on her stomach, and the contact released the passenger from the seat belt. Medical attention was not needed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 78,000.