TL* THE CONTACT OWNS A 2019 LINCOLN NAVIGATOR. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE VEHICLE IN FRONT STOPPED SUDDENLY AND THE CONTACT CRASHED INTO THE REAR OF THE VEHICLE. THE SEATBELT PR TENSIONER FAILED TO OPERATE AS INTENDED. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED BRUISING TO HER CHEST FROM THE SEAT BELT. THE 2 CHILDREN RECEIVED SMALL BRUISING TO THE FACE AND LEFT SHOULDER FROM THE SEAT BELT. THE OTHER VEHICLE INJURIES WERE UNKNOWN. A POLICE REPORT WAS FILED. MEDICAL ATTENTION WAS CONTACTED. THE OCCUPANT OF THE OTHER VEHICLE RECEIVED MEDICAL ATTENTION AT THE SCENE OF THE CRASH. THE VEHICLE WAS TOWED TO APPLE FORD (8800 STANFORD BLVD, COLUMBIA, MD 21045 (410) 290-1100) WHERE A DIAGNOSTIC TEST WAS STILL PENDING. THE MANUFACTURER WAS CONTACTED AND MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 5,000.