If the Fiat CODE system fails to recognize that code transmitted by the ignition
key (instrument panel warning light 
on) the emergency startup can be performed by using the CODE card code.
See section “In an emergency”.
Catalyzed vehicles must not be bump started (pushed, towed or coasted downhill) as this could cause fuel to flow into the catalytic exhaust system and damage it beyond repair.
Remember that until the engine has started the brake booster and hydraulic
power steering systems will not work and a greater effort will therefore be required
to depress the brake pedal or turn the steering wheel.
See also:
Engine starting
The car is fitted with an electronic engine lock device. If the engine fails
to start, see paragraph “Fiat Code system” in section “Dashboard and controls”. ...
Spark plugs
The cleanness and soundness of the spark plugs are very important for keeping
the engine efficient and polluting emissions down.
The appearance of the spark plug, if examined by an expert eyes, is ...
EPS system operation
The ESP system is automatically inserted when the car is started and cannot be
de-activated. ...