Dodge Durango 2013 Owner's Manual page 107

Top Tether Strap Anchorage (Located on Seatback)
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 105
3. Route the tether strap to provide the most direct path
for the strap between the anchor and the child seat. If
your vehicle is equipped with adjustable rear head
restraints, raise the head restraint, and where possible,
route the tether strap under the head restraint and
between the two posts. If not possible, lower the head
restraint and pass the tether strap around the outboard
side of the head restraint.
4. For the center seating position, route the tether strap
over the seatback and headrest then attach the hook to
the tether anchor located on the back of the seat.
2