2017 TOYOTA RAV4 Seats Problems

I would like to report my safety concerns from the crash accident. Feb.14 Wednesday I drove my wife’s car 2017 Toyota RAV4 XLE. On intersection l stop completely on red stop lights.l was first, had no car up front of me.Than from behind other car Ford Focus fit me with a full speed 45. I was only in the car. On the hit my seat slid forward causing my knees to hit the dashboard. Then the seat flattened causing me to fall backward.Also the cover of moonroof got opened. While lying back on flat seat l saw sky.I was able to self extricate.l was in shock from what just happened.3 hours after the accident l had gradual onset neck pain, shoulder pain, back pain, and a generalized headache.After 5 hours l Went to ER on same day , than again ER next Monday , than l saw my primary care...

DRIVER'S SIDE HEADREST RISES APPROX. 2-1/2 TO 3 INCHES FROM LOWEST POSITION DURING THE NORMAL COURSE OF DRIVING. I DO NOT ADJUST THE HEIGHT OF THE HEADREST, EVER, OTHER THAN TO CORRECT THIS UNUSUAL PHENOMENON. THIS HAPPENS CONSTANTLY AND REPEATEDLY IN AS LITTLE AS 10-15 MILES DRIVING OVER PAVED, SMOOTH ROADS WHILE DRIVING SPEEDS RANGING FROM 45-75MPH. HAS HAPPENED SPORADICALLY SINCE WE PURCHASED THE VEHICLE NEW, BUT HAPPENS REGULARLY AND CONSISTENTLY NOW. INTERESTINGLY, THIS SAME PHENOMENON HAS OCCURRED WITH OTHER TOYOTAS I PURCHASED NEW, NAMELY MY 2006 COROLLA AND 2008 COROLLA LE. NEVER THOUGHT ABOUT IT BEING A POTENTIAL SAFETY ISSUE UNTIL I SAW IT RECURRING ON MY 2017 RAV4. DEALER IS EXPERIMENTING ON FIX BY REPLACING ADJUSTMENT BUTTONS ON BOTH DRIVER AND PASSENGER SEATS, AT MY EXPENSE (JUST RETURNED FROM LONG ROAD TRIP AND TOOK VEHICLE TO TOYOTA AT 264 MILES PAST END OF 36K WARRANTY) BUT COULD NOT...

TRAVELING ON A TRIP USING DRIVERS HEATED SEAT. IT GOT TOO HOT. I TURNED IT OFF. GOT TO HOTEL, CHECKED IN SETTLED IN FOR NIGHT. WOKE UP TO 3 BURNS ON UPPER BACK LOWER BACK AND UPPER LEG. 3AM BLISTERS POPPED WITH EXCRUCIATING PAIN. WENT TO DOCTOR, SHE STATED 1-BURN 2-3RD DEGREE, 1 BURN 2ND DEGREE, 1 BURN 1ST DEGREE.