(red)
Turning the ignition key to MAR the warning light turns on, but it should go out as soon as the engine is started (with the engine running at idle speed a brief delay in going out is allowed).
If the warning light stays on, contact immediately Fiat Dealership.
See also:
Underhood Fuses
The Front Distribution Unit is located on the right side of the engine compartment,
next to the battery. To access the fuses, press the release tabs and remove the
cover.
Front Distribution
...
General instructions
❒ When a light is not working, check that the corresponding fuse is intact before
changing a bulb. For the location of fuses, refer to the paragraph “If a fuse blows”
in this section;
...
Key without remote control
Key (A) (or (C) in alternative), delivered in two copies when the car is not
fitted with remote control, controls the following:
❒ the ignition switch;
❒ the door and boot locks;
...