wheel torque Alfa Romeo Stelvio 2018 Owner's Manual

ACTIVE SAFETY SYSTEMS
The vehicle may be equipped with the
following active safety devices:
Anti-Lock Braking (ABS) System
Drive Train Control (DTC) System
Electronic Stability Control (ESC)
System
Traction Control System (TCS)
Panic Brake Assist (PBA) System
Hill Start Assist (HSA) System
Dynamic Steering Torque (DST)
System
Active Torque Vectoring (ATV) System
For system operation, see the following
pages.
Anti-Lock Braking (ABS) System
An integral part of the braking system,
the ABS prevents one or more wheels
from locking and slipping in all road
surface conditions, regardless of the
intensity of the braking action. The
system ensures that the vehicle can be
controlled even during emergency
braking, allowing the driver to optimize
stopping distances.
The system intervenes during braking
when the wheels are about to lock,
typically in emergency braking or
low-grip conditions where locking may be
more frequent. The system also improves control and
stability of the vehicle when braking on a
surface where the grip of the left and
right wheels varies, such as in a corner.
The Electronic Braking Force Distribution
(EBD) system works with the ABS,
allowing the brake force to be distributed
between the front and rear wheels.
System Intervention
The ABS equipped on this vehicle is
provided with the "Brake-By-Wire"
(Integrated Brake System - IBS) function.
With this system, the command given by
pressing the brake pedal is not
transmitted hydraulically, but electrically.
Therefore, the light pulsation that is felt
on the pedal with the traditional system
is no longer noticeable.Warning!
The ABS contains sophisticated
electronic equipment that may be
susceptible to interference caused by
improperly installed or high output radio
transmitting equipment. This interference
can cause possible loss of anti-lock braking
capability. Installation of such equipment
should be performed by qualified
professionals.
Pumping of the Anti-Lock Brakes will
diminish their effectiveness and may lead to a
collision. Pumping makes the stopping distance
longer. Just press firmly on your brake pedal
when you need to slow down or stop.
The ABS cannot prevent the natural laws
of physics from acting on the vehicle, nor
can it increase braking or steering efficiency
beyond that afforded by the condition of the
vehicle brakes and tires or the traction
afforded.
The ABS cannot prevent collisions,
including those resulting from excessive
speed in turns, following another vehicle too
closely, or hydroplaning.
The capabilities of an ABS equipped
vehicle must never be exploited in a reckless
or dangerous manner that could jeopardize
the user’s safety or the safety of others.
Drive Train Control (DTC) System
Some models of this vehicle are equipped
with an All-Wheel Drive system (AWD),
which offers an optimal drive for
countless driving conditions 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 environmental
conditions require better traction, the
vehicle automatically switches to AWD
mode.
104
SAFETY

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
understeer 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
understeer or oversteer.
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.
Warning!
Electronic Stability Control (ESC) cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase the
traction afforded by prevailing road
conditions. ESC cannot prevent accidents,
including those resulting from excessive
speed in turns, driving on very slippery
surfaces, or hydroplaning. ESC also cannot
prevent accidents resulting from loss of
vehicle control due to inappropriate driver
input for the conditions. Only a safe,
attentive, and skillful driver can prevent
accidents. The capabilities of an ESC
equipped vehicle must never be exploited in
a reckless or dangerous manner which could
jeopardize the user’s safety or the safety of
others.
Vehicle modifications, or failure to
properly maintain your vehicle, may change
the handling characteristics of your vehicle,
and may negatively affect the performance
of the ESC system. Changes to the steering
system, suspension, braking system, tire
type and size or wheel size may adversely
affect ESC performance. Improperly inflated and unevenly worn tires may also
degrade ESC performance. Any vehicle
modification or poor vehicle maintenance
that reduces the effectiveness of the ESC
system can increase the risk of loss of
vehicle control, vehicle rollover, personal
injury and death.
Traction Control System (TCS)
The system automatically operates in the
event of slipping, loss of grip on wet
roads (hydroplaning), 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.
105

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 the
system. 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.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.
Hill Start Assist (HSA) System
This is an integral part of the 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 (R). When starting from a 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!
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.
106
SAFETY

Dynamic Steering Torque (DST) System
The DST function uses the integration of
the ESC system with the electric power
steering to increase the safety level of
the whole vehicle.
In critical situations for example (braking
on surfaces with different grip
conditions), the ESC system influences
the steering through the DST function to
implement an additional torque
contribution 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.
Active Torque Vectoring (ATV) System
The dynamic drive control is used to
optimize and balance the drive torque
between the wheels of the same axles.
The ATV system improves the grip in
turns, sending more drive torque to the
external wheel.
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 "understeer" condition.
Understeer occurs when the vehicle is
turning less than appropriate for the
steering wheel position.
AUXILIARY DRIVING SYSTEMS
The following auxiliary driving systems
are available in this vehicle:
Blind Spot Monitoring (BSM)
Forward Collision Warning Plus
(FCW+)
Tire Pressure Monitoring System
(TPMS)
Blind Spot Monitoring (BSM) System
The Blind Spot Monitoring (BSM) system
uses two radar sensors, located in the
rear bumper (one on each side), to detect
the presence of other vehicles in the rear
side blind spots of your vehicle.
The system warns the driver about the
presence 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.
0403132303USRear Sensor Location
107

INDEX
Accessories Purchased By TheOwner....................4
Active Safety Systems .........104
Active Torque Vectoring (ATV) System ................ .107
Adaptive Cruise Control .........166
Adaptive Cruise Control (ACC) (Cruise Control) ............166
Additives, Fuel ............. .256
AFS Function ................40
AirBag.................. .123
Advance Front Air Bag ........123
Air Bag Operation ...........125
Air Bag Warning Light ........123
Driver Knee Air Bag ..........126
Enhanced Accident
Response .............129,207
Event Data Recorder (EDR) .....207
Front Air Bag .............123
If A Deployment Occurs .......128
Knee Impact Bolsters ........125
Maintaining Your Air Bag System ..................... .131
Redundant Air Bag Warning Light ..................... .123
Side Air Bags .............126
Transporting Pets ..........141
Air Bag Light .............123,142
Air Bag Maintenance ...........131 Air Pressure
Tires .................. .233
Alarm (Security Alarm) ..........21
Alfa Active Suspension (AAS) .....161
Alfa DNA System .............158
Anti-Lock Braking (ABS) System . . .104
Antifreeze (Engine Coolant) ......257
Automatic Dimming Mirror ........37
Automatic Headlights ...........39
Automatic Temperature Control (ATC) ...................48
Automatic Transmission ........152
Auxiliary Driving Systems ........107
B-Pillar Location .............230
Battery ..................
.217
K

eyless Key Fob Replacement ....17
Battery Recharging ...........218
Belts, Seat ................ .142
Blind Spot Monitoring ..........107
Bodywork (Cleaning And Maintenance) .............242
Brakes .................. .250
Brake Fluid Level ...........217
Brightness, Interior Lights ........44
Bulbs, Light ............... .143
Camera, Rear .............. .179
Capacities, Fluid .............257
Carbon Monoxide Warning .......141Certification Label
............182
Changing A Flat Tire ...........225
Chart, Tire Sizing .............227
Check Engine Light (Malfunction Indicator Light) ............101
Checking Levels .............215
Checking Your Vehicle For Safety . . .141
Checks, Safety ..............141
Child Restraint ..............131
Child Restraints Booster Seats .............134
Child Restraints ............131
Child Seat Installation ........139
How To Stow An Unused ALR Seat
Belt .................. .138
Infants And Child Restraints . . . .133
LATCH Positions ...........135
Lower Anchors And Tethers For
Children ............... .135
Older Children And Child
Restraints .............. .133
Seating Positions ...........134
Clean Air Gasoline ............255
Cleaning Wheels ................ .238
Climate Control ............47,50
Close The Hood ...............57
Compact Spare Tire ...........237
Contract,

Service .............263

Cooling SystemCoolant Capacity ...........257
Selection Of Coolant (Antifreeze) ..................... .257
Courtesy Mirror Light (Bulb Replacement) .............191
Cruise Control (Speed Control) . . . .166
Cupholder ..................67
Cupholders .................67
Customer Assistance ..........262
Daytime Running Lights ..........39
Daytime Running Lights (DRL) ......39
Defroster, Windshield ..........142
Dimensions ............... .253
Direction Indicators (Changing A Bulb) .................. .191
Disabled Vehicle Towing .........204
Door Light ..................43
Door Locks Child-Protection Door Lock —
Rear Doors ................27
Power Door Locks ...........27
Doors .....................23
Drive Train Control (DTC) System . . .104
Driving Modes ............. .158
Dynamic Steering Torque (DST) System ................ .107
Electric Park Brake ............149
Electric Remote Mirrors .........37Electric Steering Wheel Heating
.....37
Electronic Speed Control ........164
Electronic Speed Control (Cruise Control) ............. .164,166
Electronic Stability Control (ESC) System ................ .105
Emergency, In Case Of ..........198
Hazard Warning Flasher .......188
Jacking ................ .225
Jump Starting .............201
Overheating ............. .203
Towing ..............204,206
Emission Control System Maintenance ............. .101
Engine .................. .247
Block Heater ............. .149
Engine Coolant Level ........
.216
Exhaust

Gas Caution .........141
Fuel Requirements ..........255
Jump Starting .............201
Oil................... .257
Oil Selection ............. .257
Overheating ............. .203
Starting ............... .203
Engine Compartment ..........215
Engine Compartment (Washing) . . . .244
Engine Oil Level Check ............. .216
Engine Overheating ...........203 Enhanced Accident Response
Feature ..............129,207
Ethanol .................. .255
Exhaust Gas Caution ...........141
Exhaust System .............141
Exterior Lighting ............38,40
Exterior Lights ............38,143
Flashers Hazard Warning ............188
Turn Signal ............41,143
Fluid Capacities ..............257
Fluid Leaks ............... .143
Fluids And Lubricants ..........258
Forward Collision Warning (System) .110
Front Light Cluster With Main Beam Xenon Gas Discharge Headlights
(Bulb Replacement) ..........191
Front Seat Electric Heating .......31
Front Seats (Power Adjustment) ....29
Front Wipers Wiper Operation ............45
Fuel Additives ............... .256
Clean Air ............... .255
Ethanol ................ .255
Materials Added ...........256
Methanol ............... .255
Tank Capacity .............257
INDEX