MY DODGE CALIBER 2012 SXT STILL UNDER WARRANTY HAD A FAILED MANUFACTURER COMPONENT, THE 'SHIFT INTERLOCK ASSEMBLY' WHICH CONTROLS DRIVE, PARK, REVERSE, NUETRAL AND ALL TRANSMISSION SETTINGS. VEHICLE WAS PARKED ON BLACKTOP AREA BEHIND MY HOUSE AND ROLLED FORWARD. IT PLUNGED HEADFIRST DOWN A STEEP HILL HILL CRASHING THROUGH BACK YARD FOREST. TREES EVENTUALLY STOPPED THE VEHICLE. NEIGHBOR'S HOUSES AND A PUBLIC ROAD WERE AT THE BASE OF HILL. THE VEHICLE WAS UNOCCUPIED. TIED CAR OFF TO A TREE TO PREVENT ROLL OVER. CAR IS NOW AT A DODGE DEALERSHIP. CHRYSLER CORPORATION IS SENDING AN 'INDEPENDENT' CHRYSLER INSPECTOR WHO THEN SENDS A DAMAGE REPORT TO CHRYSLER. THEN A 'SPECIAL INVESTIGATION' WILL FOLLOW. NO ESTIMATE ON WHEN CHRYSLER MAY RESPOND. ONGOING LACK OF URGENCY IN CHRYSLER CORPORATION RESPONSE CANNOT BE PENETRATED. CAR WAS IN THE WOODS FOR 2 DAYS AND NOW IN SHOP FOR THE 3RD DAY. DEALERSHIP HAS BEEN ACCOMODATING AND PROVIDED A RENTAL CAR FOR 5 DAYS. THE MANUFACTURER SAFETY COMPONENT THAT FAILED CREATES GREAT POTENTIAL FOR INJURY AND DAMAGE.