The warning light on the dial turns on (on certain versions together with the message on the display) when one or more doors, the boot (indication fitted on some versions only) or the bonnet are not properly shut.
Symbols 
shown on the multifunction
display indicate incomplete left/right door closing.
With doors and boot open, if 4 km/h speed is exceeded the buzzer will sound (only for versions with reconfigurable multifunction display).
IMPORTANT On versions not fitted with electric door lock, no warning message will be displayed if door is not perfectly closed or is left open.
See also:
Welcome aboard Fiat Doblò
Fiat Doblò is a compact vehicle with an original bodyline, designed to offer
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Instrument Panel Features
1 — Side Vent
2 — Multifunction Lever – Light Control
3 — Instrument Cluster And Warning Lights
4 — Windshield Wiper, Washer, Trip Computer
5 — Central Air Vents
6 — Storage Compartment/Ra ...
Gear Ranges
DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range.
PARK
This range supplements the parking brake by locking the transmission. The engine
can be started in this rang ...