The needle shows the fuel present in the tank. When the fuel reserve warning light A-fig. 35 - 36 comes on (on certain versions with the dedicated message on the reconfigurable multifunction display) it means that there are approximately 5-7 liters of fuel left in the tank.
E - tank empty.
F - tank full.
Never travel with the tank almost empty: lack of fuel could damage the catalyser.

IMPORTANT
The needle will point to E and the reserve warning light A will flash to indicate a fault in the system. Contact a Fiat Dealership to have the system checked.
See also:
Vehicle Identification Number
The Vehicle Identification Number (VIN) is found on the left front corner of
the instrument panel, visible through the windshield. This number also appears engraved
on the right front door sill un ...
Heated rear window
The warning light on the dial turns on when the heated rear window is turned
on. ...
Key-In-Ignition Reminder
Opening the driver’s door when the key is in the ignition and the ignition switch
position is OFF/LOCK, sounds a signal to remove the key. ...


