Mazda CX-3: Changing a Flat Tire / Locking Lug Nuts
If your vehicle has Mazda optional antitheft wheel lug nuts, each wheel will have one locking lug nut that locks the wheel and tire, and you must use a special key to unlock the locking lug nut. This key is stored in the glove compartment. Register the key and lug nuts 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
- Obtain the special key for the antitheft lug nut.
- Place the special key on top of the antitheft lug 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. Do not use a power impact wrench.
- Place the lug wrench on top of the key and apply pressure. Turn the wrench counterclockwise.
To install the antitheft lug nut
- Place the special 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. Do not use a power impact wrench.
- Place the lug wrench on top of the special key, apply pressure, and turn it clockwise.
Removing a Flat Tire
WARNING
When jacking-up a vehicle, always shift the
shift lever to 1st or R position (manual
transaxle vehicle) or shift the selector lever
to P position (automatic transaxle vehicle),
apply the parking brake, and place wheel
blocks in the position diagonally opposed
to the jack: Changing a flat tire without using wheel
blocks is dangerous because the vehicle
may move and fall off the jack even with
the shift lever in 1st or R position, or the
selector lever is in P position, which could
result in an accident...
Mounting the Spare Tire
Remove dirt and grime from the
mounting surfaces of the wheel and
hub, including the hub bolts, with a
cloth.
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...
Other information:
Mazda CX-3 (2015-2026) Owner's Manual: Replacing a Wheel
WARNING Always use wheels of the correct size on your vehicle: Using a wrong-sized wheel is dangerous. Braking and handling could be affected, leading to loss of control and an accident. CAUTION A wrong-sized wheel may adversely affect: Tire fit Wheel and bearing life Ground clearance Snow-chain clearance Speedometer calibration Headlight aim Bumper height Tire Pressure Monitoring System* NOTE When replacing a wheel, make sure the new one is the same as the original factory wheel in diameter, rim width, and offset (inset/outset)...
Mazda CX-3 (2015-2026) Owner's Manual: Storage Compartments
WARNING Keep storage boxes closed when driving: Driving with the storage boxes open is dangerous. To reduce the possibility of injury in an accident or a sudden stop, keep the storage boxes closed when driving. When loading cargo, make sure that it is completely secured: If the cargo is not completely secured, it may move or collapse while driving or during sudden braking, resulting in injury or an accident...
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Operational Range
The system operates only when the driver is in the vehicle or within operational range while the key is being carried.
NOTE
When the battery power is low, or in places where there are high-intensity radio waves or noise, the operational range may become narrower or the system may not operate. For determining battery replacement, Refer to Keyless Entry System.
