warning light FIAT DOBLO COMBI 2018 Owner handbook (in English)

Cylinder certification
The methane cylinders are certified in
accordance with ECE Regulation no.
110.
The cylinders must be inspected, in
accordance with ECE Regulation
Procedure no. 110, every 4 years from
the vehicle registration date or in
accordance with specific regulations in
individual countries.PETROL/METHANE
SWITCH
This engine normally runs on methane
except during starting when it runs
on petrol. Switching to methane takes
place automatically and is shown on
the instrument panel display by
switching off the
signal in the display.
Methane fuel reserve
The level of methane in the cylinders is
indicated by the four vertical bars
near the word CNG on the instrument
panel display fig. 91. When the residual
amount of methane is lower than 1/5
of the capacity of the cylinders, the first
level and the edges of the bars of the
other 3 levels flash until the next
methane refuelling. A specific message
will appear on the display in addition
to an acoustic warning.
If the methane has run out, switching to
petrol takes place automatically:
for Euro 5 versions: on the
instrument panel display, first level plus
edges of the bars of the other three
levels keep blinking and the indicator
lights up near the CNG icon.
for Euro 6 versions: on the display,
all the empty segments stop flashing
and then the
indicator near the CNG
icon turns on.
If you specifically wish to run on petrol,
press the dedicated button fig. 87
located on the central tunnel. The LED
on the button switching on indicates
that the request for switching has taken
place correctly.
The actual change to the chosen fuel
system takes place depending on
the vehicle usage conditions to
guarantee switching in absolute safety
and will be confirmed by the
warning
light in the instrument panel display
coming on/going off.
In addition, in the case of starting at
outside temperatures of below around
-10°C, the switching times from Petrol
to Methane increase to allow the
pressure regulator/reduction unit to
become warm enough.
IMPORTANT If switching takes place
during acceleration or pick-up, there
may be a brief flat spot (drop in power).
89F0V0234
90F0V0235
91F0V0244
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KNOWING YOUR VEHICLE

KNOWING THE INSTRUMENT PANEL
This section of the booklet gives you all
the information you need to
understand, interpret and use the
instrument panel correctly.DASHBOARD AND INSTRUMENT
PANEL ............................................ 51
DIGITAL DISPLAY............................ 53
MULTIFUNCTION DISPLAY ............. 54
TRIP COMPUTER ........................... 55
WARNING LIGHTS AND
MESSAGES .................................... 57
-LOW BRAKE FLUID / HANDBRAKE
APPLIED / LOW BRAKE BOOSTER
VACUUM ............................................. 57
-EBD FAILURE .................................... 58
-AIR BAG FAILURE .............................. 59
-SEAT BELTS REMINDER.................... 59
-COMFORT-MATIC /
DUALOGIC™TRANSMISSION
FAULT ................................................. 59
-ENGINE COOLANT TEMPERATURE
TOO HIGH........................................... 60
-LOW BATTERY CHARGE ................... 60
-LOW ENGINE OIL PRESSURE ........... 61
-ENGINE OIL DETERIORATED ............ 61
-LOW ENGINE OIL LEVEL ................... 62
-DOOR OPEN ..................................... 62
-INJECTION/EOBD SYSTEM
FAILURE .............................................. 63
-ABS FAILURE..................................... 64
-FUEL RESERVE ................................. 64
-GLOW PLUG PREHEATING/GLOW
PLUG PREHEATING FAILURE ............. 65
-WATER IN DIESEL FILTER.................. 65
-VEHICLE PROTECTION SYSTEM
FAILURE - FIAT CODE ......................... 66
-REAR FOG LIGHTS............................ 66
-GENERAL FAILURE INDICATION ....... 67
-DPF (PARTICULATE FILTER)
CLEANING UNDERWAY ...................... 68
-BRAKE PAD WEAR ............................ 69-ASR SYSTEM DEACTIVATED ............. 70
-TRACTION PLUS SYSTEM
ACTIVATION ........................................ 70
-TPMS................................................. 71
-PARKING SENSOR FAILURE ............. 71
-START&STOP SYSTEM FAILURE....... 71
-DIPPED BEAM HEADLIGHTS ............ 72
-FOLLOW ME HOME .......................... 72
-LEFT DIRECTION INDICATOR ............ 73
-RIGHT DIRECTION INDICATOR ......... 73
-FOG LIGHTS ...................................... 73
-CRUISE CONTROL ............................ 73
-MAIN BEAM HEADLIGHTS ................ 74
-CNG SYSTEM FAILURE ..................... 74
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KNOWING THE INSTRUMENT PANEL

DASHBOARD AND INSTRUMENT PANEL
.
Versions with digital display
A. Speedometer – B. Fuel level gauge with reserve warning light – C. Engine coolant temperature indicator with overheating warning light – D. Rev
counter – E. Digital display
92F0V0530
51

Versions with multifunction display
A. Speedometer – B. Fuel level gauge with reserve warning light – C. Engine coolant temperature indicator with overheating warning light – D. Rev
counter – E. Multifunction display
11)
WARNING
11)If the needle for the engine coolant temperature reaches the red area, stop the engine immediately and contact a Fiat Dealership.
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KNOWING THE INSTRUMENT PANEL

WARNING LIGHTS AND MESSAGES
The warning light switches on together with (where the instrument panel permits) a specific message and/or acoustic warning.
These indications are indicative and precautionary and as such must not be considered as exhaustive and/or alternative to
the information contained in the Owner Handbook, which you are advised to read carefully in all cases. In the event of a failure
indication, always refer to the contents of this chapter.
IMPORTANT Failure indications displayed are divided into two categories: very serious and less serious failures. Serious faults
are indicated by a repeated and prolonged warning "cycle". Less serious faults are indicated by a warning "cycle" with a shorter
duration. The display cycle of both categories can be interrupted. The instrument panel warning light will stay on until the
cause of the malfunction is eliminated.
Warning lights on
panelWhat it means What to do
redLOW BRAKE FLUID / HANDBRAKE APPLIED / LOW
BRAKE BOOSTER VACUUM
The warning light switches on when the key is turned to
MAR-ON, but it should switch off after a few seconds.
44)
Low brake fluid level
The warning light turns on when the level of the brake
fluid in the reservoir falls below the minimum level,
possibly due to a leak in the circuit.
On some versions the display shows the dedicated
message.Restore the brake fluid level, then check that the
warning light has switched off.
If the warning light turns on when travelling (on certain
versions together with the message on the display) stop
the vehicle immediately and contact a Fiat Dealership.
Handbrake engaged
The warning light switches on when the handbrake is
engaged.
On certain versions, if the vehicle is moving an acoustic
signal will also sound.
If the warning light comes on while driving, check that
the handbrake is not on.Release the handbrake, then check that the warning
light has switched off.
If the warning light stays on, contact a Fiat Dealership.
57

Warning lights on
panelWhat it means What to do
redBrake booster vacuum low
The warning light switches on in the event of brake
servo failure; in this case the pedal can become stiff
while braking.This failure in the brake servo does not affect the
braking efficiency of the system, but the power assisted
steering is reduced. Contact a Fiat Dealership to have
the vehicle checked.
IMPORTANT The brake system uses an electric pump
to increase the brake servo vacuum. In certain driving
situations, the device operation could be felt, but this
condition IS PART OF THE STANDARD SYSTEM
OPERATION.
red
amber
amberEBD FAILURE
The simultaneous switching on of the
(red),
(amber) and(amber) warning lights (for
versions/markets, where provided) with the engine on
indicates either an anomaly of the EBD system or that
the system is not available. In this case, the rear wheels
may suddenly lock and the vehicle may swerve when
braking sharply.
The display shows the dedicated message.Drive very carefully to the nearest Fiat Dealership to
have the system inspected immediately.
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KNOWING THE INSTRUMENT PANEL

Warning lights on
panelWhat it means What to do
redAIR BAG FAILURE
The warning light switches on when the ignition key is
turned to MAR, but it should switch off after a few
seconds.
The warning light stays on constantly if there is a failure
in the airbag system.
On some versions the display shows the dedicated
message.
45) 46)
redSEAT BELTS REMINDER
(for versions/markets, where provided)
The warning light switches on constantly with the
vehicle stationary and the driver's side or passenger
side seat belt (in versions where provided) not fastened.
The warning light flashes and a buzzer will sound if the
car is in motion and the driver’s seat belt is not correctly
fastened.For permanent deactivation of the acoustic signal
(buzzer) of the S.B.R. (Seat Belt Reminder) system
contact a Fiat Dealership.
redCOMFORT-MATIC /DUALOGIC™TRANSMISSION
FAULT
(for versions/markets, where provided)
When the key is turned to MAR, the warning light
switches on but it should switch off after a few seconds.
The warning light flashes (together with a message in
the display and an acoustic signal) to indicate that the
gearbox is faulty. The warning light can switch on even
in the case of transmission overheating, after a
particularly demanding use. In this case an engine
performance limitation is carried out.If the transmission is faulty, contact a Fiat Dealership as
soon as possible to have the system checked.
59

Warning lights on
panelWhat it means What to do
ENGINE COOLANT TEMPERATURE TOO HIGH
The warning light switches on when the ignition
key is turned to MAR, but it should switch off
after a few seconds. The warning light turns on
when the engine is overheated.
The display shows the dedicated message.In normal driving conditions: stop the car, switch off the engine
and check that the water level in the reservoir is not below the
MIN mark. In this case, wait for the engine to cool down, then
slowly and carefully open the cap, top up with coolant and
check that the level is between the MIN and MAX marks on
the reservoir itself. Also check visually for any fluid leaks. If,
when restarting, the warning light switches on again, contact a
Fiat Dealership.
If the vehicle is used under demanding conditions (e.g. in
high-performance driving): slow down and, if the warning light
stays on, stop the vehicle. Wait for 2 or 3 minutes with the
engine running and slightly accelerated to further favour the
coolant circulation. Then stop the engine. Check that the
coolant level is correct as described above.
IMPORTANT Over demanding routes, it is advisable to keep
the engine on and slightly accelerated for a few minutes before
switching it off.
redLOW BATTERY CHARGE
The warning light switches on when the ignition
key is turned to MAR, but it should switch off as
soon as the engine has started (with the engine
idling a brief delay before switching off is
acceptable).If the warning light stays on, contact a Fiat Dealership
immediately.
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KNOWING THE INSTRUMENT PANEL

Warning lights on
panelWhat it means What to do
redLOW ENGINE OIL PRESSURE
When the key is turned to MAR, the digital warning light switches on, but it should
switch off as soon as the engine is started.
The warning light switches on constantly together with the message in the display
when the system detects that the engine oil pressure is insufficient.
13)
ENGINE OIL DETERIORATED
(MultiJet versions with DPF only)
The warning light starts to flash together with a message on the display (for
versions/markets, where provided) when the system detects that the engine oil
has deteriorated.
If the warning light flashes, this does not mean that the vehicle is faulty, but simply
informs the driver that it is now necessary to change the engine oil as a result of
regular vehicle use. If the oil is not changed, warning light
will also come on
and engine operation is limited to 3000 rpm when a second threshold is reached.
If the oil is still not changed, when a third deterioration threshold is reached, the
engine is limited to 1500 rpm to avoid damage.Contact a Fiat Dealership as
soon as possible.
47) 48)
Remember that the
deterioration of the engine oil
is accelerated by:
– mainly town use of the
vehicle which makes the DPF
regeneration process more
frequent
– use of the vehicle for short
trips, preventing the engine
from reaching operating
temperature
– repeated interruption of the
regeneration process,
signalled by the DPF warning
light coming on.
61

Warning lights on
panelWhat it means What to do
redLOW ENGINE OIL LEVEL
When turning the ignition key to MAR, the warning light turns on but it should go
off after a few seconds.
This warning light appears on the panel when the engine oil level falls below the
minimum recommended value.
On certain versions a dedicated message is displayed.Restore the correct engine oil
level (see “Checking fluid
levels” in the "Maintenance
and care" section).
redDOOR OPEN
On some versions the warning light turns on when one or more doors or the rear
swing doors/tailgate (for versions/market, where provided) are not properly closed.
A buzzer will sound when doors/tailgate are open and the vehicle is moving.Check that all doors or the
swing doors/tailgate (for
versions/markets, where
provided) are perfectly
closed.
WARNING
44)If thewarning light turns on while driving (on certain versions together with the message on the display) stop the car immediately and
contact a Fiat Dealership.
45)If the
warning light does not switch on when the key is turned to MAR or if it stays on while driving (together with the message on the
display), there may be an anomaly in the restraint systems; in this case, the airbags or pretensioners may not deploy in the event of an
accident or, in a lower number of cases, they could deploy erroneously. Before continuing, contact a Fiat Dealership to have the system
checked immediately.
46)A failure of the
warning light is indicated by the blinkingwarning light. In this case, thewarning light may not indicate a possible
problem with the airbag restraint system. Before continuing, contact a Fiat Dealership to have the system checked immediately.
47)If the
warning light comes on, the exhausted engine oil should be changed as soon as possible, never drive more than 500 km from
the first switching-on of this warning light. Failure to observe the above may result in severe damage to the engine and invalidate the warranty.
Remember that when this warning light comes on, it does not mean that the level of engine oil is low, so if it flashes you do not need to top
up the engine oil.
48)If the
warning light flashes when driving, contact a Fiat Dealership.
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KNOWING THE INSTRUMENT PANEL