Jeep commander 2008 Owner's Manual page 71

70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
In the rear seat, you may have trouble tightening the
lap/shoulder belt on the child restraint because the
buckle or latch plate is too close to the belt path opening
on the restraint. Disconnect the latch plate from the
buckle and twist the short buckle-end belt several times
to shorten it. Insert the latch plate into the buckle with the
release button facing out.
If the belt still can't be tightened, or if by pulling and
pushing on the restraint loosens the belt, you may need
to do something more. Disconnect the latch plate from
the buckle, turn the buckle around, and insert the latch
plate into the buckle again. If you still can't make the
child restraint secure, try a different seating position.
To attach a child restraint tether strap:
Tether Strap Mounting
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 over
the head rests, and attach the hook to the tether anchor
located on the back of the seat.