Jeep Wrangler Owner's Manual page 70

If the seat belt has a automatic locking retractor, it will
have a distinctive label. Pull the belt from the retractor
until there is enough to allow you to pass through the
child restraint and slide the latch plate into the buckle.
Then, pull the belt until it is all extracted from the
retractor. Allow the belt to return to the retractor, pulling
on the excess webbing to tighten the lap portion about
the child restraint. Refer to "Automatic Locking Mode"
earlier in this section.
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
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 69
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 (2 Door Models)
2