See also:

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

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 ...

Immobilizer System (with Advanced Key)
The immobilizer system allows the engine to start only with an advanced key the system recognizes. If someone attempts to start the engine with an unrecognized advanced key, the engine will not s ...