I OPENED THE REAR TAILGATE AND WHILE TAKING AN OBJECT OUT OF THE BACK OF THE VEHICLE, THE TAILGATE CAME CRASHING DOWN ON MY HEAD WITH GREAT FORCE. AFTER PHYSICALLY RECOVERING, I TESTED THE TAILGATE AND THE ISSUE REPEATED ITSELF. I CALLED KITAHARA GMC IN FRESNO, CA AND SCHEDULED A SERVICE APPOINTMENT. KITAHARA REPLACED THE PARTS, BUT I WAS TOLD THAT IT IS A WEAR PART AND THAT BECAUSE THERE ARE NO RECALLS THERE IS NO WAY FOR THEM TO GUARANTEE THAT THE ISSUE WON'T HAPPEN AGAIN. I CALLED GENERAL MOTORS TO REPORT THE ISSUE AND THEY OFFERED $100 TOWARD AN OIL CHANGE AND TIRE ROTATION AND CLAIMED THAT THEY DO NOT ISSUE RECALLS. I AM REPORTING THIS ISSUE TO THE NHTSA, BECAUSE I FEAR THAT THIS DEFAULT IS EXTREMELY DANGEROUS AND COULD CAUSE SEVERE INJURY OR EVEN DEATH DEPENDING ON THE SITUATION AT THE TIME OF MALFUNCTION. *TR