OPENED REAR GATE HATCH AND REACHED INTO VEHICLE. REAR GATE ABRUPTLY STARTED CLOSING ON ITS OWN PINNING ME IN THE VEHICLE. HATCH WAS PRESSED AGAINST MY UPPER BACK AND UPPER RIGHT ARM AS I WAS TRYING TO GET OUT OF THE WAY. HATCH WOULD NOT STOP CLOSING AND CONTINUALLY KEPT BANGING MY BODY UNTIL I COULD SLITHER OUT FROM UNDERNEATH IT AND THEN IT FORCEFULLY SLAMMED SHUT. I AM A SENIOR FEMALE AND WAS PINNED FACED DOWN "VERY SCARY". I CALLED LOCAL CADILLAC DEALER AND BROUGHT THE VEHICLE IN WITHIN A HALF HOUR. THEY TOOK IT IN IMMEDIATELY, NO QUESTIONS ASKED AND REPLACED THE RIGHT STRUT. I INQUIRED IF THERE SHOULD BE ANY TYPE OF SAFETY FEATURES OR SENSORS TO PREVENT FROM HATCH CLOSING ON YOU AND THEY STATED NO. NEXT DAY LATER I AM VERY BRUISED AND SORE.