See also:

Immobilizer System (without Advanced Key)
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 helpi ...

Advanced Keys
The advanced keyless functions (advanced keyless entry and start system) enables the following operations while the advanced key is being carried. - Locking/unlocking the doors and the liftgate wi ...

Trailer Towing
The Mazda3 is not designed for towing. Never tow a trailer with your Mazda3. ...