Anti-Theft Wheel Lug Nuts; The Anti-Theft Lug Nut And Key - Ford Thunderbird Owner's Manual

To replace the wheel cover:
1. Place the tire valve stem hole in the wheel
cover over the tire valve stem. Align the
holes in the wheel cover mounting pad with
the center holes in the metal inserts. Install
and tighten the five screws.
2. Align the legs of the ornament with the slots
on the wheel cover. Strike the ornament with
the palm of your hand.
Anti-Theft Wheel Lug Nuts (If equipped)
If your vehicle has this option, one of the lug
nuts on each wheel locks and must be unlocked
with a special key. The key and registration card
are attached to the lug wrench and stored with
the spare tire. If you lose the key, send the
registration card to the manufacturer (not the
dealer) to get a replacement key.
NOTE: If entire lug wrench/lug nut key
assembly is lost, see your nearest Ford
or Lincoln-Mercury dealer who has
access to a master set of keys.
NOTE: DO NOT USE A POWER IMPACT
WRENCH ON THE LUG NUT KEY.

The anti-theft lug nut and key

184