POWER LIFT GATE ON 2004 TOYOTA SIENNA DROPPED DOWN AND STRUCK DRIVER ON BACK OF NECK CAUSING INJURY. AS IN PAST, THERE WAS NO WARNING PRIOR TO LIFTGATE COMING DOWN APPROX 1-2 FEET. VEHICLE WAS REPAIRED TWO WEEK PRIOR BY DEALER, WITH NEW LIFTGATE STRUTS AND BRACKETS FOR SAME REPORTED PROBLEM. VEHICLE ONLY HAD 31,000 MILES AND WAS 3 MONTHS PAST 36 MONTH WARRANTY PERIOD. HAD TO REPAIR UNDER EXTENDED WARRANTY. *TR