engine ALFA ROMEO STELVIO 2021 Repair Manual

135

(Continued)
Models Without Compact Spare Tire
1. Open the liftgate and lift up the load floor.Load Floor
2. Lift up the cover to reach the emergency opening cable on the side of the fuel door.
Cargo Box 3. Pull the cable to release the fuel door lock.
Cargo Box Opened
4. Open the fuel door by pushing it.
NOTE:

If the filler compartment is washed with a pres
-
sure washer, keep it at a distance of at least
8 inches (20 cm).
VEHICLE LOADING
Certification Label
As required by National Highway Traffic Safety
Administration regulations, your vehicle has a
certification label affixed to the driver's side
door or pillar.
This label contains the month and year of
manufacture, Gross Vehicle Weight Rating
(GVWR), Gross Axle Weight Rating (GAWR)
front and rear, and Vehicle Identification
Number (VIN). A Month-Day-Hour (MDH)
number is included on this label and indicates
the Month, Day and Hour of manufacture. The
bar code that appears on the bottom of the
label is your VIN.
1 — Cover
2 — Release Cable
WARNING!
Never have any smoking materials lit in or
near the vehicle when the fuel door is
open or the tank is being filled.
Never add fuel when the engine is
running. This is in violation of most state
and federal fire regulations and may
cause the Malfunction Indicator Lamp
(MIL) to turn on.
A fire may result if gasoline is pumped into
a portable container that is inside of a
vehicle. You could be burned. Always
place gas containers on the ground while
filling.
WARNING!
(Continued)
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138

Trailer Towing Weights (Maximum Trailer Weight Ratings)
Trailer And Tongue Weight
Never exceed the maximum tongue weight
stamped on your fascia/bumper or trailer
hitch.Weight Distribution
Trailer Hitch Classification Definitions
ClassMax. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1,587 kg)
Class III - Heavy Duty 6,000 lbs (2,722 kg)
Class IV - Extra Heavy Duty 10,000 lbs (4,535 kg)
Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” chart for the Maximum Gross Trailer Weight (GTW) towable for your given
drivetrain.
All trailer hitches should be professionally installed on your vehicle.
Engine/TransmissionMaximum GTW (Gross Trailer Wt.)Maximum Tongue Wt. (See Note)
2.0L Engine 3,000 lbs (1360 kg) 300 lbs (136 kg)
Refer to local laws for maximum trailer towing speeds.

NOTE:

The trailer tongue weight must be considered as part of the combined weight of occupants and cargo, and should never exceed the weight refer -
enced on the Tire and Loading Information placard.
CAUTION!
Always load a trailer with 60% of the weight
in the front of the trailer. This places 10% of
the GTW on the tow hitch of your vehicle.
Loads balanced over the wheels or heavier
in the rear can cause the trailer to sway
severely side to side which will cause loss
of control of the vehicle and trailer. Failure
to load trailers heavier in front is the cause
of many trailer collisions.
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139
(Continued)
Consider the following items when computing
the weight on the rear axle of the vehicle:
The tongue weight of the trailer.
The weight of any other type of cargo or
equipment put in or on your vehicle.
The weight of the driver and all passengers.

NOTE:

Remember that everything put into or on the
trailer adds to the load on your vehicle. Also,
additional factory-installed options or
dealer-installed options must be considered
as part of the total load on your vehicle. Refer
to the “Tire And Loading Information” placard
for the maximum combined weight of occu -
pants and cargo for your vehicle.
Towing Requirements
To promote proper break-in of your new
vehicle drivetrain components, the following
guidelines are recommended:
Towing Requirements — Tires
Do not attempt to tow a trailer while using a
compact spare tire.
Do not drive more than 50 mph (80 km/h)
when towing while using a full size spare
tire.
Proper tire inflation pressures are essential
to the safe and satisfactory operation of
your vehicle.
Check the trailer tires for proper tire infla -
tion pressures before trailer usage.
Check for signs of tire wear or visible tire
damage before towing a trailer.
Replacing tires with a higher load carrying
capacity will not increase the vehicle's
GVWR and GAWR limits.
For proper tire inflation procedures

Ú
page 233.
WARNING!
Improper towing can lead to a collision.
Follow these guidelines to make your trailer
towing as safe as possible:
Make certain that the load is secured in
the trailer and that it will not shift during
travel. When trailering cargo that is not
fully secured, dynamic load shifts can
occur that may be difficult for the driver to
control. You could lose control of your
vehicle and have a collision.
When hauling cargo, or towing a trailer, do
not overload your vehicle or trailer. Over -
loading can cause a loss of control, poor
performance, or damage to brakes, axle,
engine, transmission, steering, suspen -
sion, chassis structure, or tires.
Safety chains must always be used
between your vehicle and trailer. Always
connect the chains to the frame or hook
retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow
enough slack for turning corners.
Vehicles with trailers should not be parked
on a grade. When parking, apply the
parking brake on the tow vehicle. Put the
tow vehicle transmission in PARK. Always
block or "chock" the trailer wheels.
GCWR must not be exceeded.
Total weight must be distributed between
the tow vehicle and the trailer such that
the following four ratings are not
exceeded:
• GVWR
• GTW
• GAWR
• Tongue weight rating for the trailer
hitch utilized.
WARNING! (Continued) CAUTION!
Do not tow a trailer at all during the first
500 miles (805 km) the new vehicle is
driven. The engine, axle or other parts
could be damaged.
Then, during the first 500 miles (805 km)
that a trailer is towed, do not drive over
50 mph (80 km/h) and do not make
starts at full throttle. This helps the engine
and other parts of the vehicle wear in at
the heavier loads.
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141

Towing Tips
Before setting out on a trip, practice turning,
stopping, and backing up the trailer in an area
located away from heavy traffic.
Automatic Transmission
Select the DRIVE range when towing. The
transmission controls include a drive strategy
to avoid frequent shifting when towing.
However, if frequent shifting does occur while
in DRIVE, you can use the AutoStick shift
control to manually select a lower gear.

NOTE:

Using a lower gear while operating the vehicle
under heavy loading conditions will improve
performance and extend transmission life by
reducing excessive shifting and heat build-up.
This action will also provide better engine
braking.
Cruise Control — If Equipped
Do not use on hilly terrain or with heavy
loads.
When using the Cruise Control, if you expe-
rience speed drops greater than 10 mph
(16 km/h), disengage until you can get back
to cruising speed.
Use Cruise Control in flat terrain and with
light loads to maximize fuel efficiency.
Installing The Receiver
To properly install the receiver, follow the
directions below:
1. Retrieve the receiver from the luggage compartment.
2. Push the receiver into the trailer hitch, and secure by inserting the locking pin into the
trailer hitch.
3. Insert the safety split ring into the hole on the locking pin.

NOTE:

Ensure that the locking pin is removed from
the trailer hitch before installing the receiver.
Trailer Hitch And Receiver
Connecting The Electrical System
To connect the trailer’s electrical system,
follow the directions below:
1. Remove the socket protective cover.
2. Completely insert the plug into the socket.
Electrical Tow Connector
1 – Receiver
2 – Locking Pin
3 – Safety Split Ring
A – Trailer Hitch
Pin
NumberFunction
1 Lights ground (Lights GND)
2 Position light, side marker
lights, and license plate light
3 Left turn signal and stop light
4 Right turn signal and stop
light
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142

Removing The Receiver
When the receiver is no longer needed, discon-
nect the electrical connections and remove it
from its position using the directions below:
1. Remove the safety split ring from the locking pin.
2. Pull the locking pin out of the trailer hitch.
3. Remove the receiver from the trailer hitch.
SUGGESTIONS FOR DRIVING
Saving Fuel
Below are some suggestions which may help
you save fuel and lower the amount of harmful
emissions released into the atmosphere.
Vehicle Maintenance
Checks and operations should be carried out
in accordance with the Maintenance Plan

Ú
page 208.
Tires
Check the tire pressures at least once every
four weeks: if the pressure is too low,
consumption levels increase as resistance to
rolling is higher.

NOTE:

Tire pressure that is too high can cause
premature tire wear, reduced control, etc. Unnecessary Loads
Do not travel with an overloaded liftgate. The
weight of the vehicle and its arrangement
greatly affect fuel consumption and stability.
Electric Devices
Use electrical systems only for the amount of
time needed. The rear window defroster, addi
-
tional headlights, windshield wipers and
heater blower fan require a considerable
amount of energy; increasing the current
uptake increases fuel consumption (by up to
+25% when city driving).
Climate Control System
Using the climate control system will increase
consumption: use standard ventilation when
the temperature outside permits.
Devices For Aerodynamic Control
The use of non-certified devices for aerody -
namic control may adversely affect air drag
and consumption levels.
Driving Style
Starting
Do not warm up the engine at low or high revs
when the vehicle is stationary; this causes the
engine to warm up more slowly, thereby
increasing fuel consumption and emissions. It
is therefore advisable to drive off immediately,
slowly, avoiding high speeds: by doing this the
engine will warm up more quickly. Unnecessary Actions
Avoid revving up when starting at traffic lights
or before stopping the engine. This action is
unnecessary and causes increased fuel
consumption and pollution.
Gear Selection
Use a high gear when traffic and road condi
-
tions allow it. Using a low gear for faster accel -
eration will increase fuel consumption.
Improper use of a high gear increases
consumption, emissions and engine wear.
Max. Speed
Fuel consumption considerably increases as
speed increases. Maintain a constant speed,
avoiding unnecessary braking and accelera -
tion, which cost in terms of both fuel consump -
tion and emissions.
Acceleration
Accelerating violently severely affects
consumption and emissions: acceleration
should be gradual and should not exceed the
maximum torque.Conditions Of Use
Cold Starting
Short trips and frequent cold starts will not
allow the engine to reach optimum operating
temperature. This results in a significant
increase in consumption levels (from +15 to
+30% in city driving) and emissions.
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143

Traffic And Road Conditions
High fuel consumption is caused by heavy
traffic, for instance when traveling in traffic
with frequent use of low gears or in cities with
many traffic lights. Winding mountain roads
and rough road surfaces also adversely affect
consumption.
Stops In Traffic
During prolonged stops (e.g. railway cross-
ings), turn off the engine.
Performance — Quadrifoglio
This vehicle is equipped with an engine
capable of delivering exceptionally fast accel -
eration and speed:
Peak power: 505 HP at 6,500 RPM.

Peak torque: 443 ft-lbs at 2,500–5,000 RPM.

Top speed: 176 mph (283 km/h).

Acceleration from 0 to 60 mph (0 to 100 km/h):
3.6 seconds.

For safe driving, it is essential, particularly
during the first days of use, to get to know the
car by driving carefully and gradually discov -
ering its performance.
Brakes
The car braking system may be available with
four carbon-ceramic material brake discs, one
on each wheel. In order to guarantee the maximum braking
capacity for the first use, Alfa Romeo performs
a "run-in" procedure for discs and pads directly
at the factory.
The use of carbon-ceramic material brake
discs guarantees braking features (better
deceleration/pedal load ratio, braking
distances, fading resistance) proportional to
the dynamic features of the car in addition to
considerably decreasing the unsprung compo
-
nent weight.
The materials used and the structural features
of the system could generate unusual noises
which have absolutely no adverse effect on
correct operation and reliability of the braking
system.
Greater pressure may need to be applied to
the brake pedal the first time to keep the same
braking capacities in presence of condensa -
tion or salt on the braking surfaces, for
example after washing or if the car is not used
for a long time.

NOTE:

Given the high technological level of this
system, any servicing on it must be performed
by an authorized dealer which exclusively has
the skills needed for the repair and mainte -
nance operations. In case of intensive, high-performance use of
the car, have the efficiency of the
carbon-ceramic material braking system
inspected as shown on the Maintenance Plan
at an authorized dealer.
Driving On Race Tracks
Before driving on a track using a racing style, it
is necessary to:
Attend a race track driving course.
Check the liquid levels in the engine
compartment
Ú

page 208.
Have the car inspected at an authorized
dealer.
Remember that the car was not designed to be
driven exclusively on the race track and that
this use increases stress and component
wear.

NOTE:

Quadrifoglio front brakes are equipped with
Non-Asbestos Organic (NAO) type pads. These
pads are NOT suitable for high thermal loads
(for example track use). If you want to use
vehicle on a track it is recommended to use
the optional CCM Brakes (Carbon Ceramic
Brake disc).
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146

Given that, in a turn, the external wheels of the
car travel more than the internal ones and
therefore turn faster, sending a higher thrust
to the external rear wheel allows for the car to
be more stable and to not suffer an "under-
steer" condition. Understeer occurs when the
vehicle is turning less than appropriate for the
steering wheel position.
Dynamic Steering Torque (DST) System
DST uses the integration of the Electronic
Stability Control (ESC) system with the electric
power steering to increase the safety level of
the whole vehicle.
In critical situations (e.g. braking on surfaces
with different grip conditions), the ESC system
influences the steering through the DST func -
tion to implement an additional torque contri -
bution on the steering wheel in order to
suggest the most correct maneuver to the
driver.
The coordinated action of the brakes and
steering increases the safety and control of
the vehicle.

NOTE:

The DST feature is only meant to help the
driver realize the correct course of action
through small torques on the steering wheel,
which means the effectiveness of the DST
feature is highly dependent on the driver’s
sensitivity and overall reaction to the applied
torque. It is very important to realize that this feature will not steer the vehicle, meaning the
driver is still responsible for steering the
vehicle.
Drive Train Control (DTC) System
Some models of this vehicle are equipped with
an All-Wheel Drive (AWD) system, which offers
an optimal drive for countless driving condi
-
tions and road surfaces. The system reduces
tire slipping to a minimum, automatically
redistributing the torque to the front and rear
wheels as needed.
To maximize fuel savings, the vehicle with
AWD automatically passes to Rear-Wheel
Drive (RWD) when the road and environmental
conditions are such that they wouldn't cause
the tires to slip. When the road and environ -
mental conditions require better traction, the
vehicle automatically switches to AWD mode.

NOTE:

There may be a brief delay in shifting to
AWD mode after a tire slipping event occurs.
If the system failure symbol switches on,
after starting the engine or while driving, it
means that the AWD system is not working
properly. If the warning message activates
frequently, it is recommended to carry out
the maintenance operations.
Electronic Stability Control (ESC) System
The ESC system improves the directional
control and stability of the vehicle in various
driving conditions.
The ESC system corrects the vehicle’s under -
steer and oversteer, distributing the brake
force on the appropriate wheels. The torque
supplied by the engine can also be reduced in
order to maintain control of the vehicle.
The ESC system uses sensors installed on the
vehicle to determine the path that the driver
intends to follow and compares it with the
vehicle’s effective path. When the real path
deviates from the desired path, the ESC
system intervenes to counter the vehicle’s
oversteer or understeer.
Oversteer occurs when the vehicle is
turning more than it should according to the
angle of the steering wheel.
Understeer occurs when the vehicle is
turning less than it should according to the
angle of the steering wheel.
System Intervention
The intervention of the system is indicated by
the flashing of the ESC warning light on the
instrument panel, to inform the driver that the
vehicle stability and grip are critical.
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148

HDC Speed SET Switch
Once the desired speed has been reached,
release the SET switch and the HDC system
will maintain the set speed. After set speed is
established, the HDC system will automatically
brake to keep the vehicle at the set speed if
the accelerator pedal is released and the
vehicle gets close to the set speed.
It is possible to reduce the set speed with the
brake pedal. When the pedal is released, the
system will adjust the set speed to the new
current speed.

NOTE:
If the vehicle’s speed exceeds 6 mph (10 km/h),
but remains below 37 mph (60 km/h) and the
accelerator pedal is released, as soon as the
vehicle gets close to the set speed the HDC
system will automatically brake to keep the
vehicle at the set speed.

The driver can cancel HDC system intervention
at any time by pressing the accelerator pedal. System Deactivation
The HDC system will be deactivated, but
remain available, if any of the following condi
-
tions are met:
The vehicle is traveling on a downhill slope
with a gradient less than 8%, on a level
surface, or on an uphill grade.
PARK (P) mode is engaged.
Disabling The System
The system is disabled if any of the following
conditions are met:
The HDC switch is pressed.
Cruise Control/Adaptive Cruise Control is
activated.
A vehicle speed of 37 mph (60 km/h) is
exceeded.
System deactivation is shown by the icon
on the display turning off.
Hill Start Assist (HSA) System
HSA is an integral part of the Electronic
Stability Control (ESC) system that facilitates
starting on slopes, activating automatically in
the following cases:
Uphill: the vehicle is stationary on a road
with a gradient higher than 5%, the engine
is running, the brake is pressed, and the
transmission is in NEUTRAL (N) or a gear
other than REVERSE (R) is engaged.
Downhill: the vehicle is stationary on a road
with a gradient higher than 5%, the engine
is running, the brake is pressed, and the
transmission is in REVERSE.
When starting to move forward from a
complete stop, the ESC system control unit
maintains the braking pressure on the wheels
until the engine torque necessary for starting
is reached, or in any case for a maximum of
two seconds, allowing your right foot to be
moved easily from the brake pedal to the
accelerator.
The system will automatically deactivate after
two seconds without starting, gradually
releasing the braking pressure. During this
release stage, it is possible to hear a typical
mechanical brake release noise, indicating
the imminent movement of the vehicle.
WARNING!
HDC is only intended to assist the driver in
controlling vehicle speed when descending
hills. The driver must remain attentive to
the driving conditions and is responsible for
maintaining a safe vehicle speed.
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149

Panic Brake Assist (PBA) System
The PBA system is designed to improve the
vehicle’s braking capacity during emergency
braking.
The system detects emergency braking by
monitoring the speed and force with which the
brake pedal is pressed, and consequently
applies the optimal brake pressure. This can
reduce the braking distance: the PBA system
therefore complements the ABS.
Maximum assistance from the PBA system is
obtained by pressing the brake pedal very
quickly. In addition, the brake pedal should be
pressed continuously during braking, avoiding
intermittent presses, to get the most out of thesystem. Do not reduce pressure on the brake
pedal until braking is no longer necessary.
The PBA system is deactivated when the brake
pedal is released.Traction Control System (TCS)
The TCS automatically operates in the event of
slipping, loss of grip on wet roads (hydro
-
planing), and acceleration on one or both drive
wheels on roads that are slippery, snowy, icy,
etc. Depending on the slipping conditions, two
different control systems are activated:
If the slipping involves both drive wheels,
the system intervenes, reducing the power
transmitted by the engine.
If the slipping only involves one of the drive
wheels, the Brake Limited Differential (BLD)
function is activated, automatically braking the wheel which is slipping (the behavior of
a self-locking differential is simulated). This
will increase the engine torque transferred
to the wheel which isn't slipping.
System Intervention
The intervention of the system is indicated by
the flashing of the ESC warning light on the
instrument panel, to inform the driver that the
vehicle stability and grip are critical.
AUXILIARY DRIVING SYSTEMS
The following auxiliary driving systems are
available in this vehicle:
Blind Spot Monitoring (BSM) — if equipped
Active Blind Spot Assist (ABSA) — if
equipped
Forward Collision Warning Plus (FCW+)
Tire Pressure Monitoring System (TPMS)
The vehicle may also be fitted with the
following driving assistance systems:
Driver Attention Assist (DAA)
Lane Departure Warning (LDW)
Lane Keeping Assist (LKA)
Highway Assist System (HAS)
Traffic Jam Assist (TJA)
Adaptive Cruise Control (ACC)
Intelligent Speed Control (ISC)
Traffic Sign Recognition (TSR)
WARNING!
There may be situations where the Hill Start
Assist (HSA) will not activate and slight
rolling may occur, such as on minor hills or
with a loaded vehicle, or while pulling a
trailer. HSA is not a substitute for active
driving involvement. It is always the driver’s
responsibility to be attentive to distance to
other vehicles, people, and objects, and
most importantly brake operation to ensure
safe operation of the vehicle under all road
conditions. Your complete attention is
always required while driving to maintain
safe control of your vehicle. Failure to follow
these warnings can result in a collision or
serious personal injury.
WARNING!
The Panic Brake Assist (PBA) cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase
the traction afforded by prevailing road
conditions. PBA cannot prevent collisions,
including those resulting from excessive
speed in turns, driving on very slippery
surfaces, or hydroplaning. The capabilities
of a PBA-equipped vehicle must never be
exploited in a reckless or dangerous
manner, which could jeopardize the user's
safety or the safety of others.
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150

For the operation of the DAA, LDW, LKA, HAS,
TJA, ACC, ISC, or TSR systems, see
Ú
page 86.

NOTE:

When driving on two-way roads where there is
no lane dividing center line (e.g. on unpaved
roads), the use of the ABSA, HAS, TJA, and LKA
systems is strongly discouraged as the system
could detect the entire road as single-lane
dividing lines.

NOTE:

The driving assistance systems are designed
to aid in driving the car. The driver must always
maintain a sufficient level of attention to the
traffic and road conditions and control the
trajectory of the car.
Blind Spot Monitoring (BSM) System — If
Equipped
The BSM system uses radar sensors, located
in the rear fascia/bumper, to detect the pres -
ence of other vehicles in the rear side blind
spots of your vehicle.
Rear Sensor Location The system warns the driver about the pres
-
ence of other vehicles in the detection area by
illuminating the warning light located within
the door mirror on the side in which the other
vehicle was detected. If equipped, an audible
chime will also be heard to alert the driver (if
option is selected within the radio system).
BSM Indicator Light
When the engine is started, the warning light
illuminates briefly to signal the driver that the
system is active.
Sensors
The sensors are activated when any forward
gear is engaged at a speed higher than
approximately 6 mph (10 km/h) or when
REVERSE is engaged.
The sensors are temporarily deactivated when
the vehicle is stationary or the vehicle is in
PARK.
The detection area of the system covers
approximately one lane on both sides of the
vehicle, which is around 9 ft (3 m). This area begins from the door mirror and
extends for approximately 19 ft (6 m) towards
the rear part of the vehicle.
When the sensors are active, the system moni
-
tors the detection areas on both sides of the
vehicle and warns the driver about the
possible presence of vehicles in these areas.
While driving, the system monitors the detec -
tion zone in three different situations:
when you are being overtaken by a vehicle;
when you are overtaking a vehicle;
when a vehicle approaches from the side;
to check whether it is necessary to send a
signal to the driver on both sides.

NOTE:

The system does not alert the driver of the
presence of fixed objects (e.g. safety
barriers, poles, walls, etc.). However, in
some circumstances, the system may acti -
vate in the presence of these objects. This is
normal and does not indicate a system
malfunction.
The system does not alert the driver about
the presence of vehicles coming from the
opposite direction, in the adjacent lanes.
If a trailer is hitched to the car, the system
automatically deactivates.
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