The arrows will flash in unison with the exterior turn signal, when using the turn signal lever.
See also:
Passenger seat compliance with regulations on child’s seat use
Fiat Punto complies with the new Directive 2000/3/EC regulating child’s seat
assembling on the different car seats according to the following tables:
Front and rear seat (3 and 5-door versions)
...
Flashing the headlights
Pull the lever towards the steering wheel (unstable position) regardless of the
position of the knurled ring.
Instrument panel warning light 1will turn on. ...
Installation of electric / electronic devices
Electric/electronic devices installed after buying the car or in aftermarket
shall bear the and marking:
Fiat Auto S.p.A. authorizes the installation of transceivers provided that installation
...