The fiat code system

To further protect you car from theft, it has been fitted with an engine immobilising system. This system is automatically activated when the ignition key is removed.

An electronic device, in fact, is fitted in each ignition key grip. The device transmits a radio-frequency signal when the engine is started through a special aerial built into the ignition switch. The modulate signal, which changes each time the engine is started, is the password by means of which the control unit recognises the key and enables to start the engine.

See also:

Radio-frequency remote control: ministerial homologation
The homologation number is printed directly on the key grip for the markets where this is required. ...

Automatic Transmission – If Equipped
The Sport mode increases steering feedback to the driver with slight increase in effort and changes the transmission shift schedules for more aggressive shifting. This driving mode is useful while ...

Memory Feature
The driver seat also has a memory feature, which can operate in two ways: Memory Function Option 1) — Full Seat Back And Track Fore/Aft Position Memory: After using the EZ entry function, the Afte ...