Security System
Modification and Add-On Equipment
Mazda cannot guarantee the immobilizer and the theft-deterrent systems' operation if the system has been modified or if any add-on equipment has been installed.
To avoid damage to the vehicle, do not modify the system or install any add-on equipment to the immobilizer and the theft-deterrent systems or the vehicle.
Immobilizer System
The immobilizer system allows the engine to start only with a key the system recognises.
If someone attempts to start the engine with an unrecognised key, the engine will not start, thereby helping to prevent vehicle theft.
If you have a problem with the immobilizer system or the key, consult an Authorised Mazda Repairer.
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Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
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To avoid damage to the key, do not:
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Drop the key.
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Get the key wet.
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Expose the key to any kind of magnetic field.
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Expose the key to high temperatures on places such as the instrument panel or bonnet, under direct sunlight.
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If the engine does not start with the correct key, and the security indicator light keeps illuminating or flashing, the system may have a malfunction. Consult an Authorised Mazda Repairer.
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The keys carry a unique electronic code. For this reason, and to assure your safety, obtaining a replacement key requires some waiting time. They are only available through an Authorised Mazda Repairer.
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Always keep a spare key in case one is lost. If a key is lost, consult an Authorised Mazda Repairer as soon as possible.
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If you lose a key, an Authorised Mazda Repairer will reset the electronic codes of your remaining keys and immobilizer system. Bring all the remaining keys to an Authorised Mazda Repairer to reset.
Starting the vehicle with a key that has not been reset is not possible.
Operation
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The engine may not start and security indicator light may illuminate or flash if the key is placed in an area where it is difficult for the system to detect the signal, such as on the instrument panel or in the glove compartment. Move the key to a location within the signal range, switch the ignition off, and then restart the engine.
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Signals from a TV or radio station, or from a transceiver or mobile telephone could interfere with your immobilizer system. If you are using the proper key and the engine fails to start, check the security indicator light.
Arming
The system is armed when the ignition is switched from ON to off.
The security indicator light in the instrument cluster flashes every 2 seconds until the system is disarmed.

Disarming
The system is disarmed when the ignition is switched ON with the correct programmed key. The security indicator light illuminates for about 3 seconds and then turns off. If the engine does not start with the correct key, and the security indicator light remains illuminated or flashing, try the following:
Make sure the key is within the operational range for signal transmission. Switch the ignition off, and then restart the engine. If the engine does not start after 3 or more tries, contact an Authorised Mazda Repairer.
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If the security indicator light flashes continuously while you are driving, do not shut off the engine. Go to an Authorised Mazda Repairer and have it checked. If the engine is shut off while the indicator light is flashing, you will not be able to restart it.
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Because the electronic codes are reset when the immobilizer system is repaired, the keys are needed. Make sure to bring all the keys to an Authorised Mazda Repairer so that they can be programmed.
Theft-Deterrent System (Some Models)
If the theft-deterrent system detects an inappropriate entry into the vehicle or the intrusion sensor detects movement in the vehicle which could result in the vehicle (with the intrusion sensor) or its contents being stolen, the alarm alerts the surrounding area of an abnormality by sounding the siren/horn and flashing the hazard warning lights.
The system will not function unless it's properly armed. So when you leave the vehicle, follow the arming procedure correctly.
Intrusion sensor (Some Models)
The intrusion sensor uses ultrasonic waves to detect movement inside the vehicle and to raise an alert of an intrusion into the vehicle.
The intrusion sensor detects certain kinds of movement inside the vehicle, however, it may also respond to phenomenon outside the vehicle such as vibrations, loud noise, wind, and air currents.
In order for the intrusion sensor to operate appropriately, be aware of the following:
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Do not hang clothing or objects from a head restraint or a coat hook.
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Return the extension sunvisors to their original positions.
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Do not blind the intrusion sensor by covering it or placing objects over it.
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Do not allow the intrusion sensor to get soiled or wipe it with a liquid.
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Do not shock or cause an impact to the intrusion sensor or the intrusion sensor bezel.
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Do not install seats that are not Mazda genuine products.
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To prevent obstruction of intrusion sensor, do not place objects or cargo near the intrusion sensor that are higher than the head restraints.
Operation
Siren/Horn triggering conditions
The siren/horn sounds intermittently and the hazard warning lights flash for about 30 seconds when the system is triggered by any one of the following:
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Unlocking a door with the auxiliary key or an inside door-lock knob.
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Forcing open a door, the bonnet or the liftgate.
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Opening the bonnet by operating the bonnet release handle.
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Switching the ignition ON without using the push button start.
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(With the intrusion sensor)
The intrusion sensor detects a movement in the vehicle.
The system will be triggered again (up to 10 times) if one of the above conditions remains.
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(With the intrusion sensor)
Disconnecting the battery terminal (the hazard warning lights do not flash).
The system will be triggered about 10 times.
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The liftgate does not open while the theft-deterrent system is operating.
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For vehicles equipped with the power liftgate, the liftgate can be opened even while the theft-deterrent system is operating by pressing the power liftgate button on the transmitter or the electric liftgate opener switch while carrying the key.
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If the battery goes dead while the theft-deterrent system is armed, the siren/horn will activate and the hazard warning lights will flash when the battery is charged or replaced.
How to Arm the System
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Close the windows and the sunroof (Some Models) securely.
(With the intrusion sensor)
Even with a window or the sunroof (Some Models) open, the system can be armed, however, leaving the windows and the sunroof (Some Models) even partially open can invite theft, and wind blowing into the vehicle could trigger the alarm.
The intrusion sensor function can also be cancelled.
Refer to Cancelling the Intrusion Sensor (With Intrusion Sensor) (Search).
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Switch the ignition OFF.
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Make sure the bonnet, the doors, and the liftgate are closed.
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Press the lock button on the transmitter or lock the driver's door from the outside with the auxiliary key.
The hazard warning lights will flash once.
(With the advanced keyless function)
Press a request switch.
The security indicator light in the instrument cluster flashes twice per second for 20 seconds.
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After 20 seconds, the system is fully armed.
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The theft-deterrent system can also be armed by activating the auto relock function with all the doors, the liftgate and the bonnet closed.
Refer to Transmitter (Search).
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The system will disarm if one of the following operations takes place within 20 seconds after pressing the lock button:
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Unlocking any door.
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Opening any door.
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Opening the bonnet.
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Switching the ignition ON.
To rearm the system, do the arming procedure again.
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When the doors are locked by pressing the lock button on the transmitter or using the auxiliary key while the theft-deterrent system is armed, the hazard warning lights will flash once to indicate that the system is armed.
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Cancelling the Intrusion Sensor (With Intrusion Sensor)
If the theft deterrent system has been armed while any of the following conditions are present, cancel the intrusion sensor to prevent the alarm from triggering unnecessarily.
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Leaving the vehicle with a movable object, passengers or pets remaining inside.
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Leaving an object inside the vehicle that can roll around, such as when the vehicle is placed on a tilting, unstable surface when being shipped.
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Hanging small objects/accessories in the vehicle, hanging clothing on a coat hook, or placing other items which can move easily inside the vehicle.
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Parking in an area where there is strong vibration or loud noise.
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When using a high pressure or automatic car wash.
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Continuous shock and vibration from hail or thunder and lightning is transmitted to the vehicle.
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Doors are locked with a window or the sunroof (Some Models) left open.
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An accessory heater or device that produces moving air and vibration operates while the theft deterrent system is armed.
If any door or the liftgate remains closed for 30 seconds, all the doors and the liftgate automatically re-lock and the theft deterrent system arms even if a window and the sunroof (Some Models) is left open.
To cancel the intrusion sensor, press the intrusion sensor cancel button on the transmitter within 20 seconds after pressing the lock button.
The hazard warning lights will flash three times.
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To reactivate the intrusion sensor, turn off the armed theft-deterrent system and then rearm it.
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The intrusion sensor is operational when the theft-deterrent system is armed. To cancel the intrusion sensor, press the intrusion sensor cancel button each time the theft-deterrent system is armed.
To Turn Off an Armed System
To Stop the Alarm
A triggered alarm can be turned off using any one of the following methods:
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Pressing the unlock button on the transmitter.
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Starting the engine with the push button start.
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(With the advanced keyless function)
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Pressing a request switch on the doors.
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Pressing the electric liftgate opener while the key is being carried.
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Pressing the power liftgate button on the transmitter.
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The hazard warning lights will flash twice.