Jeep 2009 Wrangler - Owner Manual - Manual (Page 74)

To attach a child restraint tether strap:
Route the tether strap over the seatback and attach the
hook to the tether anchor located on the back of the seat.
For the outboard seating positions, route the tether under
the head rest, and attach the hook to the tether anchor
located on the back of the seat. Tether Strap Mounting (Two-Door Models)
Tether Strap Mounting (Four-Door Models)
72 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE