WHILE DRIVING 50MPH THE VEHICLE EXPERIENCED A LOSS OF CONTROL, UNKNOWN AS TO WHY THE VEHICLE LOST CONTROL, AND WENT THROUGH A MAILBOX/TREE/ EMBANKMENT UNTIL IT STOPPED ON A FIELD ON ITS OWN. ALSO, THE BUMPER EXPERIENCED FRONTAL IMPACT DAMAGE, BUT THE DRIVER'S AIRBAG DID NOT DEPLOY AND DID NOT PROTECT THE OCCUPANT IN THIS ACCIDENT. CAUSED UNKNOWN. PLEASE PROVIDE DETAILS. *AK