2018 FIAT FULLBACK engine

Switching between 4HLc and 4LLc
Drive
mode
selector
positionIndicator lamp
4HLc
Drive mode
switching
in progress
and
4LLcandand
Blink
Illuminate
Remain offNOTE When the drive mode-selector is
set between “2H”, “4H” and “4HLc”,
the front wheel and/or centre differential
lock lamps blink while the selection is in
process. Take the following precautions
when the indicator lamp is blinking.
Keep the steering wheel in the
straight ahead position while making
range selections. If you attempt to drive
forward with the steering wheel turned,
gear rattling or shock may occur and
cornering may not be smooth and the
desired range may not actually be
selected.
When the drive mode-selector is set
between “2H”, “4H” and “4HLc”, while
the vehicle is stopped, the front wheel
and/or centre differential lock lamps
blink while the selection is in process.
Drive slowly and normally after
confirming that the lamp is switched.
If the front wheel and/or centre
differential lock lamps blinking after a
“2H” — “4H” — “4HLc” selection has
been made with the vehicle moving,
hold the steering wheel in the straight
ahead position and slowly depress the
accelerator pedal several times.
NOTE The front and the rear wheel
lamps will blink during shifting process
from “4HLc” to “4LLc” or vice versa, as
the transfer passes through the neutral
position. Be sure to operate the drive
mode-selector until the front and the
rear wheel lamps illuminate again.
NOTE When parking, apply the parking
brake before stopping the engine and
make sure that the front and the rear
wheel lamps and the low range lamp
are not blinking during shifting process
between “4HLc” — “4LLc”. Otherwise,
the vehicle could unexpectedly move
even if the automatic transmission is in
the “P” (PARK) position
NOTE If, after a “4HLc” — “4LLc”
selection has been made, front and the
rear wheel lamps continue blinking and
the desired range is not actually
selected, return the drive modeselector
to its previous position. Place the
steering wheel in the straight ahead
position, drive the vehicle forward, and
release the accelerator pedal. Next,
hold down the clutch pedal (with
manual transmission) or place the
selector lever in the “N” (NEUTRAL)
position (with automatic transmission)
and make the range selection again.
176
STARTING AND DRIVING

NOTE If the low range lamp blinks
when you attempt to make a “4HLc” —
“4LLc” selection, a “4HLc” — “4LLc”
selection cannot be made. Stop the
vehicle and release the accelerator
pedal. Next, hold down the clutch pedal
(with manual transmission) or place the
selector lever in the “N” (NEUTRAL)
position (with automatic transmission)
and make the range selection again.
NOTE The ESC function is suspended
while “4LLc” is selected
indicator
lamp is illuminated while these functions
are suspended. It does not indicate a
problem. When “2H” or “4H” or “4HLc”
is selected, this lamp goes out and
function again. Refer to “ESC indicator
lamp, ESC OFF indicator lamp”.
140)
IMPORTANT
137)The “4LLc” range gives maximum
torque for low-speed driving on steep
slopes, as well as sandy, muddy, and other
difficult surfaces. On vehicles with
automatic transmission, do not exceed
speeds of approximately 70 km/h in “4LLc”
range.
138)Do not drive your vehicle in the
“4HLc” or “4LLc” position on dry paved
roads and highways. Doing so may result in
excessive tyre wear, increased fuel
consumption, and possible noise
generation. It may also increase the
differential oil temperature, which may
damage the drive system. Further, the drive
train will be subjected to excessive loading,
resulting in oil leakage, component seizure,
or other serious problems. On dry paved
roads and highways, drive the vehicle in
“2H” or “4H” only.
139)Do not operate the drive
mode-selector while the rear wheels of the
vehicle are slipping on snow or ice.
140)If a problem is detected in the transfer
system, a safety device will activate. The
front and rear wheel lamps will go out, the
centre differential lock lamp will blink rapidly
(twice per second), and transfer shifting will
become impossible fig. 277. Park your
vehicle in a safe place, turn off the engine
for a few moments. Restart the engine. The
lamp should resume normal operation. If
the lamps continue to blink, have the
vehicle checked by a Fiat Dealership as
soon as possible.
REAR DIFFERENTIAL
LOCK
(where provided)
If one wheel starts to spin freely and the
vehicle becomes stuck and cannot be
freed even using 4-wheel drive, the rear
differential lock switch (A) can be used
to activate the rear differential lock for
extra traction.
Operating the rear differential lock
1. Bring the vehicle to a complete stop.
2. Move the drive mode-selector to
“4L” or “4H” position (Easy select
4WD), “4LLc” or “4HLc” position (Super
select 4WD II).
3. To activate the rear differential lock,
press the rear differential lock switch
(A).
4. To deactivate the rear differential
lock, press the rear differential lock
switch (B).
277AHZ101128
278AHA106069
177

Examples of incorrect use of the
rear differential lock
234) 235)
236)
237) 238)
WARNING
234)If the “4L” or “4H” position (Easy
Select 4WD), “4LLc” or “4HLc” position
(Super Select 4WD II) is selected along
with the rear differential lock, the following
phenomena appear and it is very
dangerous. Please be sure to release the
rear differential lock on normal roads.
235)If the rear differential lock is used by
mistake when driving on a paved road:
With the rear differential lock on, the power
to drive the vehicle straight ahead
becomes very strong, which may make it
difficult to turn the steering wheel.
236)If the rear differential lock is used by
mistake when turning a curve or making a
right or left turn at a crossing or the like:
The vehicle is unable to make a turn and
may go straight ahead.237)If the rear differential lock is used by
mistake except when making an
emergency escape on snow or frozen
road: It becomes difficult to make a steady
turn.
238)In the case where the condition of the
road is different for the right tyre to drive
from the left tyre (such as one tyre on a
paved road and the other on ice), direction
of the vehicle may change abruptly when
engine braking or accelerating. Do not use
the rear differential lock except when
making an emergency escape on a snow
or frozen road, but drive with 4WD.
IMPORTANT
141)Operate the rear differential switch
after the wheels are stopped. Operating the
switch with the wheels turning may cause
the vehicle to dart in unexpected directions.
142)If a problem is detected in the rear
differential lock system, a safety device will
activate. The rear differential lock indicator
lamp will blink rapidly (twice per second),
and the rear differential lock will deactivate.
Park your vehicle in a safe place, turn off
the engine for a few moments. Restart the
engine. It is safe to continue driving if the
lamps resume normal operation. If the rear
differential lock indicator lamp blinks when
the rear differential lock is reactivated, have
the vehicle checked by a Fiat Dealership as
soon as possible.
285AHA105235
286AHA105248
287AHA105251
180
STARTING AND DRIVING

143)Use the rear differential lock only as an
emergency measure when the vehicle is
stuck and cannot be freed with the transfer
shift lever or the drive mode-selector in “4L”
or “4H” position (Easy Select 4WD) or in
“4LLc” or “4HLc” position (Super Select
4WD II). Deactivate the rear differential lock
immediately after using it.4 WHEEL DRIVE
OPERATION
By selecting 4-wheel drive, both axles
of the vehicle are rigidly connected with
each other. This improves the traction
characteristics. When turning sharp
corners or moving forward and
backward repeatedly, however, the
drive line is stressed, which is felt as a
braking effect. A 4-wheel drive vehicle
can accelerate more quickly and
smoothly.
However, note that the braking distance
is not shorter than that of a rear-wheel
drive vehicle.
When using 4-wheel drive on rough
roads (snow, mud, sand, etc.), it is
important to operate the vehicle
correctly.
NOTE The driving posture should be
more upright and closer to the wheel
than usual; adjust the seat to a good
position for easy steering and pedal
operation. Be sure to wear the seat
belt.
NOTE After driving on rough roads,
check each part of the vehicle and
wash it thoroughly with water. Refer to
“Vehicle care” and “Inspection and
maintenance following rough road
operation”.Driving on dry paved road and
highway
Select “2H” position (Easy Select 4WD),
“2H” or “4H” position (Super Select
4WD II) to drive on the dry paved road.
Especially on dry highway, never select
the “4H” or “4L” position (Easy Select
4WD), “4HLc” or “4LLc” position (Super
Select 4WD II).
144)
Driving on snowy or icy roads
Set the drive mode-selector to “4H”
position (Easy Select 4WD), “4H” or
“4HLc” position in accordance with the
road conditions (Super Select 4WD II)
and then gradually depress the
accelerator pedal for a smooth start.
Keep the pressure on the accelerator
pedal as constant as possible, and
drive at low speed.
NOTE The use of snow tyres and/or
tyre chains is recommended.
NOTE Maintain a safe distance
between vehicles, avoid sudden
braking, and use engine braking
(downshifting).
145)
Driving on sandy or muddy roads
Set the drive mode-selector to “4H” or
“4L” position (Easy Select 4WD),
“4HLc” or “4LLc” position (Super Select
4WD II) and then gradually depress the
accelerator pedal for a smooth start.
Keep the pressure on the accelerator
181

pedal as constant as possible, and
drive at low speed.
146) 147)
239)
NOTE Avoid sudden braking,
acceleration, and turning; such
operations could result in the vehicle
becoming stuck.
NOTE If the vehicle becomes stuck in
sandy or muddy roads, it can often be
moved a rocking motion. Move the
selector lever rhythmically between the
“D” (DRIVE) and “R” (REVERSE)
position (with manual transmission,
between 1st and Reverse), while
applying slight pressure to the
accelerator pedal.
NOTE It is recommended to start the
vehicle with parking brake partially, but
not completely, applied by slightly
pulling the parking brake lever. After the
vehicle has become free, do not forget
to release the parking brake.
NOTE If it is necessary to drive in
extremely muddy conditions, the use of
tyre chains is recommended. Because
the extent of muddy conditions is
difficult to judge and the vehicle could
become bogged down very deeply,
operation should be at a low speed. If
possible, get out of the vehicle and
check the conditions ahead before
proceeding.NOTE Driving over roads in coastal
areas or roads on which anti-skid
preparations have been spread can
cause rust on the vehicle; wash the
vehicle thoroughly as soon as possible
after such use.
Climbing sharp grades
Set the drive mode-selector to “4L”
position (Easy Select 4WD), “4LLc”
position (Super Select 4WD II) to
maximize the engine torque.
240) 241)
NOTE Choose as smooth a slope as
possible with few stones or other
obstacles.
NOTE Before attempting to drive up
the slope, walk up it to confirm that the
vehicle can handle the grade.
Descending sharp grades
Set the drive mode-selector to “4L”
position (Easy Select 4WD), “4LLc”
position (Super Select 4WD II), use the
engine brake (downshifting) and
descend slowly.
242)
NOTE When descending a sharp
grade, if the brakes are applied
suddenly because of an obstacle
encountered, control of the vehicle
could be lost. Before descending the
slope, walk down it and confirm the
path.NOTE Before descending a grade, it is
necessary to choose the appropriate
gear. Avoid changing gears or
depressing the clutch while descending
the grade.
NOTE FCA is not responsible to the
operator for any damage or injury
caused or liability incurred by the
improper and negligent operation of a
vehicle. All techniques of vehicle
operation described herein depend on
the skill and experience of the operator
and other participating parties and any
deviation from the recommended
operation instructions above is at their
own risk.
Turning sharp corners
When turning a sharp corner in “4H” or
“4L” position (Easy Select 4WD),
“4HLc” or “4LLc” position (Super Select
4WD II) at low speed, a slight difference
in steering may be experienced similar
to as if the brakes were applied. This is
called tight corner braking and results
from each of the 4 tyres being at a
different distance from the corner.
Crossing a stream
4-wheel drive vehicles are not
necessarily waterproof. If the electrical
circuits become wet, further operation
of the vehicle will be impossible;
therefore, avoid crossing streams
unless absolutely necessary. If crossing
a stream is unavoidable, use the
following procedure:
182
STARTING AND DRIVING

1 – Check depths of a stream and
geographical features before attempting
to cross a stream and ford the stream
where the water is as shallow as
practicable.
2 – Set the drive mode-selector to “4L”
position (Easy Select 4WD), “4LLc”
position (Super Select 4WD II).
3 – Drive slowly at a speed of
approximately 5 km/h to avoid
splashing too much water.
148) 149)
Inspection and maintenance
following rough road operation
After operating the vehicle in rough road
conditions, be sure to perform the
following inspection and maintenance
procedures:
Check that the vehicle has not been
damaged by rocks, gravel, etc.
Carefully wash the vehicle with water.
Drive the vehicle slowly while lightly
depressing the brake pedal in order to
dry out the brakes. If the brakes still do
not function properly, contact a Fiat
Dealership as soon as possible to have
the brakes checked.
Remove the insects, dried grass, etc.
clogging the radiator core and the A/T
oil cooler.
After crossing a stream, be sure to have
the following items inspected at a Fiat
Dealership and take the necessary
measures:
Check the brake system and, if
necessary, have it serviced.
Check the engine, transmission,
transfer, and differential oil or grease
level and turbidity. If the oil or grease is
milky, it indicates water contamination.
Replace it with new oil or grease.
Grease the propeller shaft.
Check the inside of the vehicle. If
ingress of water is found, dry the carpet
etc.
Inspect the headlamps. If the
headlamp bulb is flooded with water,
have the headlamp drained off.
IMPORTANT
144)Selecting “4H” or “4L” position (Easy
Select 4WD), “4HLc” or “4LLc” position
(Super Select 4WD II) to drive on dry paved
road will increase the fuel consumption with
possible noise generation and early tyre
wear. It may also increase the differential oil
temperature, resulting in possible damage
to the driving system. Further, the drive
train will be subjected to excessive loading,
possibly leading to oil leakage, component
seizure, or other serious faults.
145)Avoid sudden braking, sudden
acceleration, and sharp turning; such
operations could cause skidding and
spinouts.146)Do not force the vehicle or drive
recklessly on sandy surfaces. In
comparison with normal road surfaces, the
engine and other drive-system components
are put under excessive strain when driving
on such a surface, and this could lead to
accidents.
147)If any of following conditions occur
while the vehicle is being driven,
immediately park your vehicle in a safe
place and follow these procedures: the
needle in the temperature gauge
approaches the overheating zone. Refer to
“Engine overheating”; automatic
transmission fluid temperature warning
lamp comes on. Refer to “When the A/T
(automatic transmission) fluid temperature
warning lamp comes on”.
148)Never cross a stream where the water
is deep. Do not change gears while
crossing the stream. Frequent crossing of
streams can adversely affect the life span
of the vehicle; we recommend you to take
the necessary measures to prepare,
inspect, and repair the vehicle.
149)After crossing a stream, apply the
brakes to be sure they are functioning
properly. If the brakes are wet and not
functioning properly, dry them out by
driving slowly while lightly depressing the
brake pedal. Inspect each part of the
vehicle carefully.
183

WARNING
239)When attempting to rock your vehicle
out of a stuck position, be sure that the
area around the vehicle is clear of people
and physical objects. The rocking motion
may cause the vehicle to suddenly launch
forward or backward, causing injury or
damage to nearby people or objects.
240)Go straight up. Do not try to traverse
across a steep slope.
241)If you begin to lose traction, ease off
the accelerator pedal and gently turn the
steering wheel alternatively left and right to
regain adequate traction again.
242)Avoid snaking down a sharp grade.
Descend the grade as straight as possible.
CAUTIONS ON
HANDLING OF
4 WHEEL DRIVE
VEHICLES
Tyres and wheels
Since the driving torque can be applied
to the 4 wheels, the performance of the
vehicle when operating in 4-wheel drive
is greatly affected by the condition of
the tyres.
Pay close attention to the tyres.
Install specified tyres on all wheels.
Refer to “Tyres and wheels”.
Be sure to the appropriate tyre
inflation pressure according to no cargo
or cargo. Refer to “Tyre inflation
pressures”.
Be sure to fit all 4 tyres and wheels of
the same size and type. When
replacement of any of the tyres or
wheels is necessary, replace all of them.
All tyres should be rotated whenever
the wear difference between the front
and rear tyres is recognizable.
Good vehicle performance cannot be
expected if there is a difference in wear
between tyres. Refer to “Tyre rotation”.
Check the tyre inflation pressure
regularly.
150)
Towing
If towing is necessary, we recommend
you to have it done by a Fiat Dealership
or a commercial tow truck service. In
the following cases, transport the
vehicle using a tow truck.
The engine runs but the vehicle does
not move or abnormal noise is
produced.
Inspection of the vehicle’s underside
reveals that oil or some other fluid is
leaking.
If a wheel gets stuck in a ditch, do not
try to tow the vehicle. Please contact
your Fiat Dealership or a commercial
tow truck service for assistance.
Only when you cannot receive a towing
service from a Fiat Dealership or
commercial tow truck service, tow your
vehicle carefully in accordance with the
instructions given in “Towing”.
NOTE The regulations concerning
towing may differ from country to
country. It is recommended that you
obey the regulations of the area where
you are driving your vehicle.
184
STARTING AND DRIVING

151)
Jacking up a 4-wheel drive vehicles
243)
Clutch operation
Quick or slight clutch engagement
made while the engine is running at
high speed will cause damage to the
clutch and transmission because the
tractive force is very great. Operate the
pedal slowly and positively.
IMPORTANT
150)Always use tyres of the same size,
same type, and same brand which have no
wear differences. Using the tyres which
differ in size, type, brands or the degree of
wear or the inappropriate tyre inflation
pressure, will increase the differential oil
temperature, resulting in possible damage
to the driving system. Further, the drive
train will be subjected to excessive loading,
possibly leading to oil leakage, component
seizure, or other serious faults.
151)Transport the vehicle with the driving
wheels on a carriage (Type C or D) as
illustrated. Never try to tow with the front or
rear wheels on the ground (Type A or B) as
illustrated. This could result in damage to
the drivetrain, or unstable towing.
WARNING
243)Do not crank the engine while jacking
up the vehicle. The tyre on the ground may
turn and the vehicle may roll off the jack.
BRAKING SYSTEM
All the parts of the brake system are
critical to safety. We recommend you to
have the vehicle checked at regular
intervals according to the service
booklet.
244)
Brake system
The service brake is divided into two
brake circuits. And your vehicle is
equipped with power brakes. If one
brake circuit fails, the other is available
to stop the vehicle. If your vehicle
should lose the power assist for some
reason, the brakes will still work.
In these situations even if the brake
pedal moves down to the very end of
its possible stroke or resists being
depressed, keep depressing the brake
pedal down harder and further than
usual; stop driving as soon as possible
and have the brake system repaired.
245) 246)
Warning lamp
The brake warning lamp illuminates to
indicate a fault in the braking system.
Refer to “Brake warning lamp”.
When brakes are wet
Check the brake system while driving at
a low speed immediately after starting,
especially when the brakes are wet, to
confirm they work normally.
288AHE100182
185