1996 Mercury Cougar Owner's Manual - Page 201

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. DO NOT USE A POWER IMPACT WRENCH ON THE LUG NUT KEY. The anti-theft lug nut and key Removing the anti-theft lug nut Insert the key over the locking lug nut. Make sure that you hold the key square to the lug nut. If you hold the key on an angle, you may damage the key and the lug nut. Place the lug nut wrench over the lug nut key and apply pressure on the key with the wrench. Turn the wrench in a counterclockwise direction to remove the lug nut. 202