JEEP LIBERTY, 2010. LEFT HOUSE AND DROVE ~ 100' TO THE FIRST STOP SIGN AND MADE A FULL STOP. STARTED TO DRIVE AWAY AND THERE WAS AN IMMEDIATE LURCH AND THRUST OF ACCELERATION, WITH LIMITED AND/OR LOSS OF STEERING AND/OR BRAKING ABILITY. THE JEEP JUMPED A CURB AND STRUCK A PEDESTRIAN AND MAILBOX. CAUSING INJURY TO THE PERSON AND DAMAGE TO THE CAR AND MAILBOX. *TR