THE ACTIVE HEAD REST DEPLOYED WHILE WE WERE PARKED AND EATING TACO BELL AFTER DRIVING THROUGH THE DRIVE THROUGH. MY GIRLFRIEND AND I HAD PARKED THE JEEP AND BEGAN EATING SOME TACOS. WHILE PARKED, I HEARD A POP SOUND LIKE AN EXPLOSION. IT SOUNDED LIKE A PISTOL HAD BEEN SHOT OFF NEAR MY VEHICLE, I EVEN DUCKED FOR COVER TO ANTICIPATE THE POSSIBILITY OF MORE SHOTS, THEN I REALIZED MY GIRLFRIEND WAS INJURED. SHE HAD BEEN HIT IN THE BACK OF THE HEAD. NOT BY A GUNSHOT BUT BY MY JEEP GRAND CHEROKEE'S (LIMITED 4X4 3.6L V6 2014) ACTIVE HEAD REST SAFETY SYSTEM HAD DEPLOYED WHILE PARKED AND STRUCK HER IN THE BACK OF THE HEAD WHILE WE ATE FOOD IN THE PARKING LOT. MY GIRLFRIEND IS [XXX] AND SHE HAS SINCE SEEN A DOCTOR AND MISSED TIME OFF OF WORK OVER THE INJURY AND PAIN RESULTING FROM THIS DEFECTIVE HEADREST. AFTER READING THAT THERE HAVE BEEN OVER 150 COMPLAINTS OF THIS OCCURRING ALREADY, JEEP, CHRYSLER, DODGE, IS WELL AWARE OF THIS AND THEY HAVE DONE NOTHING TO MAKE ITS OWNERS AWARE OF THE ISSUE. THEY SHOULD BE RECALLING THIS IMMEDIATELY AND THEY KNOW IT. BUT BECAUSE THE DEVICE CANNOT BE REASSEMBLED AFTERWARDS AND MUST BE REPLACED ENTIRELY (COST FOR THE HEADREST ALONE IS ABOUT $800) AND THERE'S TWO PER VEHICLE (AT A MINIMUM) WHICH WOULD RESULT IN JEEP HAVING TO SPEND A GREAT DEAL OF ADDITIONAL TIME AND RESOURCES INCLUDING THE MOST IMPORTANT TO THEM - MONEY. SO BECAUSE JEEP DIDN'T WANT TO ACCOUNT FOR A SMALL DEDUCTION IN THEIR 1.6 BILLION DOLLARS IN PRE-TAX ANNUAL PROFITS, MY GIRLFRIEND