2009 Mazda MAZDA3 Owner's Manual - Page 273

In Case of an Emergency Flat Tire qLocking Lug Nuts í If your vehicle has optional antitheft wheel lug nuts, one on each wheel will lock the tires and you must use a special key to unlock them. This key is attached to the lug wrench and is stored with the spare tire. Register them with the lock manufacturer by filling out the card provided in the glove box and mailing it in the accompanying envelope. If you lose this key, consult an Authorized Mazda Dealer or use the lock manufacturer's order form, which is with the registration card. To install the nut 1. Place the key on top of the nut, and be sure to hold the key square to it. If you hold the key at an angle, you may damage both key and nut. Don't use a power impact wrench. 2. Place the lug wrench on top of the key, apply pressure, and turn it clockwise. qMounting the Spare Tire 1. Remove dirt and grime from the mounting surfaces of the wheel and hub, including the hub bolts, with a cloth. Antitheft lug nut Special key To remove an antitheft lug nut 1. Obtain the key for the antitheft lug nut. 2. Place the key on top of the nut, and be sure to hold the key square to it. If you hold the key at an angle, you may damage both key and nut. Don't use a power impact wrench. 3. Place the lug wrench on top of the key and apply pressure. Turn the wrench counterclockwise. WARNING Make sure the mounting surfaces of the wheel, hub and lug nuts are clean before changing or replacing tires: When changing or replacing a tire, not removing dirt and grime from the mounting surfaces of the wheel, hub and hub bolts is dangerous. The lug nuts could loosen while driving and cause the tire to come off, resulting in an accident. 2. Mount the spare tire. í Some models. 7-11