If your vehicle has Mazda 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 will attach to the lug wrench.
Register them with the lock manufacturer by filling out the card provided in the glove compartment 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.
Accessory wheel locks cannot be used on steel wheels. This includes situations when the spare tire is installed. If the spare tire is installed, one of the original lug nuts (which should still be in the vehicle) must be installed in place of the wheel lock.

To remove an antitheft lug nut
To install the antitheft lug nut

Removing a Flat Tire
Mounting the Spare TireBattery Inspection [Skyactiv G 2.0]
WARNING:
Since battery acid is toxic, be careful when handling the battery.
Since battery acid is highly corrosive, be careful not to allow it to contact
clothing or the vehicle.
In case battery acid contacts skin, eyes, or clothing, flush it immediately
with running wa ...
Radiator Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
Never remove the cooling system cap or loosen the radiator drain plug while
the engine is running, or when the engine and radiator are hot. Scalding engine
coolant and steam may shoot out and cause serious injury. It may also damage
the engine and cooling system.
Tu ...
Oil Pressure Switch Inspection [FS5 A EL]
CAUTION:
Water or foreign objects entering the connector can cause a poor connection
or corrosion. Be sure not to drop water or foreign objects on the connector
when disconnecting it.
On-Vehicle Inspection
1. Perform the following procedures.
a. Remove the aerodynamic under co ...