Modification and Add-On Equipment
Immobilizer System
Theft-Deterrent System (Some Models)

Immobilizer System

The immobilizer system allows the engine to start only with a key the system recognizes.


If someone attempts to start the engine with an unrecognized 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 Authorized Mazda Dealer.


Radio equipment like this is governed by laws in the United States.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

  • To avoid damage to the key, do not:

    • Drop the key.

    • Get the key wet.

    • Expose the key to any kind of magnetic field.

    • Expose the key to high temperatures on places such as the dashboard or hood, under direct sunlight.

  • 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 Authorized Mazda Dealer.

Close Caution
View Caution


  • 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 Authorized Mazda Dealer.

  • Always keep a spare key in case one is lost. If a key is lost, consult an Authorized Mazda Dealer as soon as possible.

  • If you lose a key, an Authorized Mazda Dealer will reset the electronic codes of your remaining keys and immobilizer system. Bring all the remaining keys to an Authorized Mazda Dealer to reset.

    Starting the vehicle with a key that has not been reset is not possible.

Close Note
View Note