HANDBRAKE ON (red)
Turning the ignition key to MAR the warning light turns on, but it should go off after few seconds.
Low brake fluid level
The warning light turns on when the level of the brake fluid in the reservoir falls below the minimum level, due to possible leak in the circuit.
On certain versions the dedicated message is displayed.
If the warning light 
turns on
when traveling (on certain versions together with the message on the display) stop
the vehicle immediately and contact Fiat Dealership.
Handbrake on
The warning light turns on when the handbrake is on.
On certain versions, if the vehicle is moving the buzzer will also sound.
IMPORTANT If the warning light turns on when traveling, check that the handbrake is not engaged.
See also:
Without The Ignition Key
Special care must be taken when the vehicle is towed with the ignition in the
OFF/LOCK position. A dolly should be used under the front wheels if the rear wheels
are raised. Proper towing equipmen ...
Wheels
RIMS AND TYRES
High resistance printed steel rims of alloy rims.
Tubeless tyres with radial carcass.
The homologated tyres are listed in the log book.
IMPORTANT
In the event of discrepancies betw ...
Safety
The Fiat Doblò is designed and built to achieve the highest levels of safety.
It is the result of the many devices offered (standard or optional according to
market or outfit) starting from ...