wheel ALFA ROMEO GIULIA 2021 Service Manual

123

(Continued)
TRAFFIC SIGN RECOGNITION
(TSR) SYSTEM — IF EQUIPPED
The Traffic Sign Recognition (TSR) system
uses a camera mounted on the windshield to
detect recognizable road signs such as:
Speed limits
Signs indicating the end of the situations
indicated above
If the camera does not detect valid speed
limits, the radio system navigation system may
suggest unregulated speed limits.
The system always checks the traffic signs
indicating the current speed limit signs. The
system is able to recognize and display up to
two different road signs in the instrument
cluster display.
Depending on the unit of measurement (km or
mph) set through the “Unit of Measurement”
menu in the radio system, the TSR system will
automatically show the indication of the road
sign in the unit of measurements selected in
the instrument cluster display.
To Activate/Deactivate
The TSR System can be activated/deactivated
in the radio system in the “Driver Assistance”
menu. The system activation is signaled by
road signs shown on the instrument cluster
display.
NOTE:

By selecting “Blinking”, the driver can acti
-
vate a warning to display when the speed
exceeds the limit indicated by the TSR
System. The speed road sign on the instru -
ment cluster display will blink until the
vehicle speed drops below the displayed
limit.
Selecting “Offset” will set the speed at
which “Blinking” is activated up to a
maximum of 6 mph (10 km/h) above the
limit detected by the system.
If no speed limit signs are found, the system
will revert to the speed limit signs that are
stored in the NAV system.
Indications On The Display
The system status can always be viewed
through the instrument cluster display.
The instrument cluster display shows only the
speed limit indications and consists of the
following steps:
The new speed limit recognized by the
system, which is indicated by means of a
predetermined color. The road sign indi -
cating the end of the speed limit or a “Road
Sign Not Detected” message may appear in
this zone.
After a predetermined distance, the previ -
ously displayed road sign changes color to
inform the driver that the speed limit
provided may no longer be valid. 1 — Traffic Sign Recognized
WARNING!
To prevent serious injury or death:
Always remain alert and be ready to take
control of the vehicle in the event that the
TJA system disables.
Always keep your hands on the steering
wheel when the TJA system is activated.

Maintain a safe distance from other vehicles
and pay attention to traffic conditions.

CAUTION!
Functionality may be limited or the system
may not work if the sensor is obstructed.

The system may have limited operation or
not work at all in weather conditions such as
heavy rain, hail, thick fog, and low tempera
-
tures. Strong light contrasts can influence
the recognition capability of the sensor.

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INTELLIGENT SPEED CONTROL
(ISC) SYSTEM — IF EQUIPPED
The Intelligent Speed Control (ISC) system is
always paired with the Adaptive Cruise Control
(ACC) system. The ISC system suggests an
automatic speed adjustment to the driver
based on the speed limit for the road being
traveled. The driver can decide whether to
accept or reject the automatic speed adjust-
ment, using the switch on the steering wheel.
If the speed limit is exceeded according to the
road signs or traffic conditions, a dedicated
graphic message is displayed on the instru -
ment panel display. RES/SET Switch
To Activate/Deactivate
To Activate
The system can be activated in the radio
system within the “Driver Assistance” menu.
The symbol illuminates in the instrument
cluster display when the system is active.
1 — ISC System Active To Deactivate
The system is deactivated under the following
conditions:
When the Traffic Sign Recognition (TSR)
system is deactivated
When the Adaptive Cruise Control (ACC)
system is deactivated

NOTE:

Selecting “Speed Offset” allows the driver to
set the speed up to a maximum of 6 mph
(10 km/h) above or below the suggested
speed set by the ISC system. In this instance,
the road sign information shown in the instru -
ment cluster display will continue to be
detected by the TSR system.
Indications On The Display
The system status is indicated by a white or
green icon in the instrument cluster display
(similar to the Adaptive Cruise Control (ACC)
device) to the left of the road sign indications
provided by the Traffic Sign Recognition (TSR)
system.

The area surrounding the sensor must not
be covered with stickers or any other object.

Do not tamper or perform any operations
in the area of the windshield glass directly
surrounding the sensor.
Clean foreign matters such as bird drop -
pings, insects, snow or ice on the wind -
shield. Use specific detergents and clean
cloths to avoid scratching the windshield.
CAUTION! (Continued)
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125

Acceptance/Rejection Of The Suggested
Speed
The system can be activated if the driver has
activated the following systems beforehand:
Adaptive Cruise Control (ACC)
Traffic Sign Recognition (TSR)
When these systems are active, a telltale will
display in the instrument cluster display indi -
cating the suggested speed provided by the
TSR system. The driver has the option to
accept or reject this using the RES/SET switch
on the steering wheel.
To accept the proposed speed and adjust the
speed set by ACC, move the RES/SET switch
up or down in the direction indicated in the tell -
tale.
To reject the proposed speed, move the RES/
SET switch up or down in the direction oppo -
site of the arrow in the telltale. The ACC system
will continue to regulate to the previously set
speed.
If the speed set by the ACC system is the same
as the speed detected by the TSR system, the
speed limit indicator on the instrument cluster
display will be highlighted with a green circle. 1 — Suggested Speed Higher Than
Current Speed
2 — Suggested Speed Lower Than Current Speed
1 —Road Sign Recognized
PARKSENSE FRONT/REAR
PARK ASSIST SYSTEM — IF
EQUIPPED
The ParkSense system provides visual and
audible indications of the distance between
the rear, and if equipped, the front fascia/
bumper and a detected obstacle when
backing up or moving forward (e.g. during a
parking maneuver). The vehicle brakes may be
automatically applied and released when
performing a reverse parking maneuver if the
system detects a possible collision with an
obstacle.
When the REVERSE gear is engaged and the
system is on, the front and rear sensors are
activated. If the vehicle moves from REVERSE
to a forward gear, the rear sensors are deacti -
vated, while the front sensors remain active
until the speed of 9 mph (15 km/h) is exceeded.

NOTE:

In certain operating conditions, the system
could start detecting an obstacle only after the
vehicle has moved slightly (a few inches).
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The system operates in the same way, but
mirrored, in the event of exiting the right lane
when only the right lane marking has been
detected.
Left Lane Departure — Both Lanes Detected
When the system is active, both lane lines on
the display illuminate in white to indicate that
both of the lane markings have been detected.
When lane markings are detected, the system
is ready to provide indications in case the
driver unintentionally leaves the lane (turn
signal not activated).
As the Lane Departure Warning system
detects the lane markings while the vehicle is
in motion, it will adjust the display accordingly
(from white to yellow and vice versa, and
increase their thickness).
If a lane line is crossed, the driver is alerted by
an audible signal as well as the visual indica-
tion in the instrument cluster. The signal is
emitted through the speakers on the side of
the lane marking which is being crossed (e.g.
if the vehicle is exceeding the left line of the
lane, the audible signal will come from the
speakers on the left of the vehicle).
Limited Operation Warning
If a message appears on the display, a condi -
tion limiting the Lane Departure Warning
system operation may have occurred. This
could be an obstruction of the camera view, or
a fault in the system. If an obstruction is detected, clean the area of
the windshield by the interior rearview mirror.
Although the vehicle can still be driven in
normal conditions, the system may not func
-
tion properly.
When the conditions limiting the system are
corrected, it will go back to normal operation.
Should a fault persist, contact an authorized
dealer.
System Failure Warning
If the system turns off and the warning light
appears on the display, it means that there is
a system fault.
In this case, it is still possible to drive the
vehicle, but you are advised to contact an
authorized dealer as soon as possible.
Changing Lane Departure Warning Status
The system's sensitivity can be set through the
radio system. Sensitivity “High” or “Low” can
be selected.
To access the function, from the main menu
select the following in order:
1. “Settings”
2. “Driver Assistance”
3. “Lane Departure Warning”
4. “Sensitivity”
LANE KEEPING ASSIST (LKA)
SYSTEM — IF EQUIPPED
The Lane Keeping Assist (LKA) system uses a
camera located on the windshield to detect
the lane markings and calculate the position
of the vehicle within such markings, in order to
make sure that the vehicle remains inside the
lane. This is an active system that will apply
torque to the steering wheel if it senses that
the vehicle is drifting out of the lane.

When one or both lane markings are detected
and the vehicle passes over one without a turn
signal being applied, the system will apply torque
to the steering wheel and a visual signal will be
displayed in the instrument cluster display. An
audible signal may also sound.
If the vehicle continues to go beyond the lane line
without any driver intervention, the surpassed
lane line (left or right) will light up on the instru -
ment cluster display to urge the driver to bring
the vehicle back inside the lane limits.

Lane Crossed
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NOTE:

The system operates in the same way, but
mirrored, in the event of exiting the right lane
when only the right lane marking has been
detected.
Left Lane Departure — Both Lanes Detected
When the system is active, both lane lines on
the display illuminate in white to indicate the
successful detection of both limits.
When lane markings are detected, the system
is ready to provide indications in case the
driver unintentionally leaves the lane (turn
signal not activated).
As the Lane Keeping Assist system detects the
lane markings while the vehicle is in motion, it
will adjust the display accordingly (from white
to yellow and yellow to white, and increase
their thickness).
If a lane line is crossed, the driver is alerted by
an audible signal as well as the visual indica-
tion in the instrument cluster. The signal is
emitted through the speakers on the side of
the lane marking which is being crossed (e.g.
if the vehicle is exceeding the left line of the
lane, the audible signal will come from the
speakers on the left of the vehicle). Hands Presence On The Steering Wheel
Detection
The system is able to detect the presence of
the driver’s hands on the steering wheel.
When the system does not detect the pres
-
ence of hands on the steering wheel for a few
seconds (up to 6 seconds), the following
screen will be displayed on the instrument
cluster display. No acoustic warning will be
emitted in this case.
Hand Presence On The Steering Wheel Not Detected Display (Up To 6 Seconds)
When the system does not detect the pres -
ence of hands on the steering wheel for a few
seconds (from 6 to 15 seconds), the following
screen will be displayed on the instrument
cluster display. A short acoustic signal will
sound if hands are not detected on the
steering wheel for 6 to 12 seconds. A contin-
uous signal will sound if hands are not
detected on the steering wheel for 12 to 15
seconds. Hand Presence On The Steering Wheel Not
Detected Display (6 To 15 Seconds)
After 15 seconds with the hands removed
from the steering wheel, the LKA system will
be deactivated and a dedicated message will
be shown on the instrument cluster display. A
short acoustic signal will sound in this case.
In any of the situations above where the hands
are removed from the steering wheel for more
than 6 seconds, it is necessary to reposition
the hands on the steering wheel.
Changing The System Sensitivity
The system's sensitivity can be set through the
radio system in the “Driver Assistance” menu.
Sensitivity “Early” or “Late” can be selected.
Changing The System Strength
The system’s strength can be set through the
radio system in the “Driver Assistance” menu.
Strength “Low” or “High” can be selected.
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REAR BACK UP CAMERA /
DYNAMIC GRIDLINES
The Rear Back Up Camera is located just
under the vehicle’s trunk lid, above the rear
license plate.Rear Back Up Camera Location
Camera Activation/Deactivation
The Rear Back Up Camera can be activated
and deactivated through the radio system by
selecting the “Settings” option on the menu.
Once the Rear Back Up Camera is activated,
choose from one of the following options:
“Activate”
“Switch-Off Delay”
“Camera Guidelines”
When the vehicle is in REVERSE, the radio
system display will show the area behind the
vehicle, as seen by the Rear Back Up Camera,
along with a warning message. Rear Back Up Camera Display

When enabled in the radio settings, active guide -
lines are overlaid on the image to illustrate the
width of the vehicle and its projected backup
path based on the steering wheel position. A
dashed center line overlay indicates the center
of the vehicle to assist with parking. Different
colored zones indicate the distance to the rear
of the vehicle. The following table shows the
approximate distances for each zone:
Messages On The Display
If the trunk lid is lifted, the camera will not
detect any obstacle behind the vehicle. The
display will show a dedicated warning
message.
Make sure the trunk lid is closed by pushing
next to the lock until it clicks.
Important Notes
Ice, snow or mud on the surface of the
camera may reduce its sensitivity. It is
important to keep the camera surface
clean, and free from debris.
When parking, be aware of obstacles that
may be above or under the camera range.
AreaDistance From The
Rear Of The Vehicle
Red 0–11.8 inches
(0–30 cm)
Yellow 11.8 inches to 3.3 feet
(30 cm–1 m)
Green 3.3 feet or more
(1 m or more)
WARNING!
Drivers must be careful when backing up
even when using the Rear Back Up Camera.
Always check carefully behind your vehicle,
and be sure to check for pedestrians,
animals, other vehicles, obstructions, or
blind spots before backing up. You are
responsible for the safety of your
surroundings and must continue to pay
attention while backing up. Failure to do so
can result in serious injury or death.
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137

Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of
your vehicle including driver, passengers,
vehicle, options and cargo. The label also
specifies maximum capacities of front and
rear axle systems (GAWR). Total load must be
limited so GVWR and front and rear GAWR are
not exceeded.
Payload
The payload of a vehicle is defined as the
allowable load weight a truck can carry,
including the weight of the driver, all passen-
gers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load
on the front and rear axles. The load must be
distributed in the cargo area so that the GAWR
of each axle is not exceeded.
Each axle GAWR is determined by the compo -
nents in the system with the lowest load
carrying capacity (axle, springs, tires or
wheels). Heavier axles or suspension compo -
nents sometimes specified by purchasers for
increased durability do not necessarily
increase the vehicle's GVWR.
Tire Size
The tire size on the Vehicle Certification Label
represents the actual tire size on your vehicle.
Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the
tire size listed.
Inflation Pressure
This is the cold tire inflation pressure for your
vehicle for all loading conditions up to full
GAWR.
Curb Weight
The curb weight of a vehicle is defined as the
total weight of the vehicle with all fluids,
including vehicle fuel, at full capacity condi -
tions, and with no occupants or cargo loaded
into the vehicle. The front and rear curb weight
values are determined by weighing your
vehicle on a commercial scale before any
occupants or cargo are added.
Loading
The actual total weight and the weight of the
front and rear of your vehicle at the ground can
best be determined by weighing it when it is
loaded and ready for operation. The entire vehicle should first be weighed on a
commercial scale to ensure that the GVWR
has not been exceeded. The weight on the
front and rear of the vehicle should then be
determined separately to be sure that the load
is properly distributed over the front and rear
axle. Weighing the vehicle may show that the
GAWR of either the front or rear axles has
been exceeded but the total load is within the
specified GVWR. If so, weight must be shifted
from front to rear or rear to front as appro
-
priate until the specified weight limitations are
met. Store the heavier items down low and be
sure that the weight is distributed equally.
Stow all loose items securely before driving.
Improper weight distributions can have an
adverse effect on the way your vehicle steers
and handles and the way the brakes operate.
CAUTION!
Do not load your vehicle any heavier than
the GVWR or the maximum front and rear
GAWR. If you do, parts on your vehicle can
break, or it can change the way your vehicle
handles. This could cause you to lose
control. Also overloading can shorten the
life of your vehicle.
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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 all liquid levels in the engine
compartment.
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
NAO type pads (Non-Asbestos Organic). 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). Preheating The Carbon Ceramic Material
Brake Discs (If Equipped)
The brake discs must be warmed up to make
them fully efficient. You are advised to perform
the following procedure to achieve optimal
efficiency:
Brake nine times from 80 mph to 18 mph
(130 km/h to 30 km/h) with deceleration
equal to 0.7g (the longitudinal acceleration
value is shown on the instrument panel
display by setting RACE mode and selecting
the “Performance” page) with 20 second
intervals between brake applications; keep
the car at a speed comprised between
37 mph and 62 mph (60 km/h and
100 km/h) and do not brake for 4 minutes to allow the brakes to cool down.
Brake three times from 124 mph to 18 mph
(200 km/h to 30 km/h) with deceleration
equal to 1.1g (ABS operation) with 30
second intervals between brake applica -
tions; keep the car at a speed comprised
between 37 mph and 62 mph (60 km/h
and 100 km/h) and do not brake for
5 minutes to allow the brakes to cool down.
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141
(Continued)
This very important section describes the
safety systems that your vehicle may be
equipped with, and provides instructions on
how to use them correctly.
ACTIVE SAFETY SYSTEMS
The vehicle may be equipped with the
following active safety devices:
Anti-Lock Brake System (ABS)
Active Torque Vectoring (ATV)
Dynamic Steering Torque (DST)
Drive Train Control (DTC)
Electronic Stability Control (ESC)
Hill Start Assist (HSA)
Panic Brake Assist (PBA)
Traction Control System (TCS)
For the operation of the systems, see the
following pages.
Anti-Lock Brake System (ABS)
An integral part of the braking system, the ABS
prevents one or more wheels from locking and
slipping in all road surface conditions, regard -
less 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 emer
-
gency 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 capa -
bility. Installation of such equipment
should be performed by qualified profes -
sionals.
Pumping of the Anti-Lock Brakes will
diminish their effectiveness and may lead
to a collision. Pumping makes the stop -
ping 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 effi -
ciency beyond that afforded by the condi -
tion 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 reck -
less or dangerous manner that could jeop -
ardize the user’s safety or the safety of
others.
WARNING! (Continued)
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142

Active Torque Vectoring (ATV) — If Equipped
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 "under-
steer" condition. Understeer occurs when the
vehicle is turning less than appropriate for the
steering wheel position.
Dynamic Steering Torque (DST)
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 (braking on surfaces with
different grip conditions), the ESC system
controls the steering through the DST function
to implement an additional torque contribu-
tion 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 sensation of 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 depen
-
dent on the driver’s sensitivity and overall reac -
tion 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 — If
Equipped
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
the slipping of the tires to a minimum, auto -
matically 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 goes to AWD mode.

NOTE:

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)
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.
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.
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 counteract the above
conditions.
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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