WE WERE IN A CHURCH PARKING LOT, SUNDAY MORNING AT ABOUT 10AM. OUTSIDE TEMP WAS 65 DEGREES. VEHICLE WAS STATIONARY. MY WIFE GOT IN THE PASSENGER SEAT AND THE HEADREST POPPED OUT AND STRUCK HER IN THE BACK OF HER HEAD. SHE LATER DEVELOPED A HEADACHE AND GENERAL DIZZINESS. WE STAYED IN THE REST OF THE DAY SO SHE COULD LAY DOWN. NOT SURE IF A TELESCOPING HEADREST WAS A FEATURE, I DID A WEB SEARCH TO SEE WHAT THE ISSUE WAS. I READ ABOUT THE 'EXPLODING HEADREST', A TERM THAT DESCRIBES WHAT IT WAS LIKE. LOOKING AT THE INSIDE OF THE HEADREST, I CAN SEE THE BROKEN PLASTIC TABS THAT WERE DESCRIBED BY OTHERS. I ASSUMED THIS WOULD BE A RECALL ITEM, BUT WAS DISAPPOINTED TO LEARN IT WAS NOT. AFTER CALLING THE DEALER, WE WERE GIVEN AN ESTIMATE OF $850 TO REPLACE IT. THIS IS OBVIOUSLY A BAD DESIGN AND SHOULD BE REPLACED AS A RECALL FIX. WE DON'T HAVE THE MONEY NOW SO WILL HAVE TO LIVE WITH IT EXTENDED.