WHILE DRIVING DOWN THE INTERSTATE AT 70MPH THE FRONT PASSENGER SIDE HEAD REST "DEPLOYED" WITHOUT WARNING, STRIKING AND INJURING MY WIFE WHO REQUIRED MEDICAL TREATMENT TO RESOLVE THE INJURY. INSPECTION OF THE HEAD REST REVEALED THAT THE PLASTIC THAT HOLDS THE METAL RETAINING PIN FOR THE ACTIVE HEAD REST SYSTEM HAD FAILED, RESULTING IN THE RAPID FORWARD MOVEMENT OF THE HEAD REST CAUSING INJURY. DODGE/FCA SO FAR IS REFUSING TO COVER THE OBVIOUS MATERIALS FAILURE AND POOR DESIGN UNDER WARRANTY.*DT*TR *DT*JB