The headrest will fold down automatically when folding the seatback.
To unfold the headrest manually:
Pull the strap.
To fold the headrest manually:
Raise the headrest manually.
Always be sure the headrest has locked into position after you return the seatback.
WARNING
Close the liftgate carefully when the third-row seats are occupied. If you close the liftgate too aggressively while the seat is occupied, you may hit the passenger in the head and cause injuries.