WITH THE VEHICLE IS STATIONARY, I OPENED THE POWER LIFT GATE, IT OPENED COMPLETELY, AND SUDDENLY FEE FELL ABOUT 1 TO 2 FEET, STIKING ME AND MY 6 MONTH OLD SON IN THE HEAD. I HAVE REPEATED THIS OPERATION MULTIPLE TIMES STANDING CLEAR OF THE LIFT GATE AND IT CONTINUES TO DO THE SAME THING EVERYTIME. IT IS NOT SAFE TO ACCESS THE CARGO AREA OF MY VEHICLE UNTIL THIS IS REPAIRED. I CALLED THE GMC DEALER IN BUNKIE, LA TO SEE IF IT WAS COVERED UNDER THE 2012 GMC ACADIA RECALLS FOR POWER LIFT GATE MALFUNCTIONING, AND THEY SAID IT WASN'T COVERED. I DISAGREE.