brake Alfa Romeo Giulia 2017 Service Manual

ADAPTIVE CRUISE
CONTROL (ACC) —
IF EQUIPPED
System Description
The Adaptive Cruise Control (ACC) is a
driver assist system that combines the
speed control functions for controlling
the distance from the vehicle ahead.
The system allows to set and hold the
vehicle at the desired speed without
needing to press the accelerator. It also
allows to set and hold a distance from
the vehicle ahead (these settings are set
by the driver).
The Adaptive Cruise Control (ACC) uses
a radar sensor located behind the front
bumper and a camera located in the
center/upper part of the windshield, to
detect the presence of a vehicle close
ahead.This system enhances driving comfort
while on the highway or out of town
with light traffic.
Warning!
Adaptive Cruise Control (ACC) is a
convenience system. It is not a substitute
for active driving involvement. It is always
the driver’s responsibility to be attentive of
road, traffic, and weather conditions,
vehicle speed, distance to the vehicle
ahead; 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 and death or
serious personal injury.
The ACC system:
Does not react to pedestrians,
oncoming vehicles, and stationary objects
(e.g., a stopped vehicle in a traffic jam or a
disabled vehicle).
Cannot take street, traffic, and weather
conditions into account, and may be
limited upon adverse sight distance
conditions.
Does not always fully recognize complex
driving conditions, which can result in
wrong or missing distance warnings.
Will bring the vehicle to a complete stop
while following a target vehicle and hold the
vehicle for approximately 3 minutes in the
stop position. If the target vehicle does not
start moving within 3 minutes the parking
brake will be activated, and the ACC
system will be canceled.
You should switch off the ACC system:
When driving in fog, heavy rain, heavy
snow, sleet, heavy traffic, and complex
driving situations (i.e., in highway
construction zones).
When entering a turn lane or highway off
ramp; when driving on roads that are
winding, icy, snow-covered, slippery, or
have steep uphill or downhill slopes.
When circumstances do not allow safe
driving at a constant speed.
GUID-06016S0003EMFront Bumper Radar Location
06016S0004EMWindshield Camera Location
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While the accelerator pedal is pressed,
the system will not be able to control
the distance between the vehicle and
the one ahead. In this case, the speed
will be determined only by the position
of the accelerator pedal.
The system will return to normal
operation as soon as the accelerator
pedal is released.
The systemcannotbe set:
When pressing the brake pedal.
When the brakes are overheated.
When the electric park brake has
been operated.
When either P (PARK), R (REVERSE)
or N (NEUTRAL) is engaged.
When the engine rpm is above a
maximum threshold.
When the vehicle speed is not within
the operational speed range.
When the ESC (or ABS or other
stability control systems) are operating
or have just operated.
When the ESC system is off.
When the Forward Collision Warning
Plus system (if equipped) is braking
automatically.
In the event of system failure.
When the engine is off.
In case of obstruction of the radar
sensor (in this case the bumper area
where it is located must be cleaned).
If the system is set, the conditions
described above also cause a
cancellation or deactivation of the
system. These situations may vary
according to the conditions.
Note:
The system will not be deactivated
when speeds higher than those set are
reached by pressing the accelerator
pedal above 110 mph (180 km/h). In
these situations, the system may not
work correctly and it is recommended
to deactivate it.
Changing Speed
Increasing speed
Once the system has been activated,
you can increase the speed by lifting
the SET switch. Each time it is
operated, the speed increases by
1 mph.
By holding the button up, the set speed
will increase in increments of five mph
until the button is released. Then, the
new speed will be set.
Decreasing speed
Once the system has been activated,
you can decrease the speed by
lowering the SET switch. Each time it is
operated, the speed decreases by
1 mph. By holding the button down, the set
speed will decrease in increments of
five mph until the button is released.
Then, the new speed will be set.
Note:
Moving the SET switch allows you
to adjust the speed according to the
selected unit of measurement ("US" or
"metric") set on the Connect system
(see dedicated supplement).
When the unit of measurement is
set to metric, holding the SET switch
the speed will change in 10 km/h
increments.
By keeping the accelerator pedal
depressed, the vehicle can continue to
accelerate beyond the set speed. In this
case, use the SET switch to set the
speed to the vehicle’s current speed.
When you push the SET button to
reduce the speed, the braking system
intervenes automatically if the engine
brake does not slow the vehicle down
sufficiently to reach the set speed. The
device holds the set speed uphill and
downhill; however a slight variation is
entirely normal, particularly on slight
inclines.
The transmission could change to a
lower gear when driving downhill, or
when accelerating. This is normal and
necessary to maintain the set speed.
The system will disable while driving
if the brakes overheat.
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The setting is 4 (maximum) the first time
the system is used. After the distance
has been modified by the driver, the
new distance will be stored also after
the system is deactivated and
reactivated.
To Decrease The Distance
Push and release the distance button to
decrease the distance setting. The
distance setting decreases by one bar
(shorter) every time the button is
pushed.
The set speed is held if there are no
vehicles ahead. Once the shortest
distance has been selected, the next
push of the button will set the
maximum distance.
If a slower vehicle is detected in the
same lane, the vehicle icon on the
display illuminates from grey to white.
The system automatically adjusts thevehicle’s speed to keep the set
distance, independently of the set
speed.
The vehicle holds the set distance until:
The vehicle ahead accelerates to a
speed higher than the set speed.
The vehicle ahead leaves the lane or
the detection field of the Adaptive
Cruise Control system sensor.
The distance setting is changed.
The Adaptive Cruise Control system
is deactivated/paused.
Warning!
The maximum breaking applied by the
system is limited. The driver may apply the
brakes in all cases if needed.
If the system predicts that the braking
level is insufficient to hold the set distance,
either “BRAKE!” or a dedicated message is
displayed to warn the driver of approaching
the vehicle ahead. An acoustic signal is
also emitted. In this case, it is advised to
brake immediately as necessary to hold a
safe distance from the vehicle ahead.
The driver is responsible for ensuring
that there are no pedestrians, other
vehicles or objectives along the direction of
the vehicle. Failure to comply with these
precautions may cause serious accidents
and injuries.
The driver is fully responsible for holding
a safe distance from the vehicle ahead
respecting the highway code in force in the
respective country.
“Stop And Go” Function
The “Stop and Go” operating strategy
allows you to maintain a safe distance
from the vehicle ahead until the vehicle
has completely stopped. It will also
restart the vehicle automatically if the
vehicle ahead drives away within two
seconds, otherwise it is necessary to
press the accelerator pedal or push the
RES button to restart.
Warning!
When the ACC system is resumed, the
driver must ensure that there are no
pedestrians, vehicles or objects in the path
of the vehicle. Failure to follow these
warnings can result in a collision and death
or serious personal injury.
GUID-07146S0015EMDistance Button
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Deactivation
The system is deactivated and the set
speed is canceled if:
Thebutton on the Active Cruise
Control is pushed (with the system
enabled or paused).
The ignition is in STOP mode.
RACE mode is activated.
The system is canceled (the set speed
and distance are stored):
When the system is paused (Refer to
the “Activation / Deactivation” section).
When the conditions shown in the
“Setting The Desired Speed” section
occur.
Limited Operation
Warning
If the dedicated message is shown on
the display, a condition limiting the
Adaptive Cruise Control operation may
have occurred.
This could be due to an obstruction of
the vehicles sensor or camera. It could
also be due to a fault in the system. If
an obstruction is detected, clean the
area of the windshield opposite the
interior rear view mirror, where the
camera is located, as well as the area
of the front bumper where the sensor is
located. Then check that the message
has disappeared. When the conditions limiting the system
functions end, normal operation will
resume.
Should the fault persist, contact an
authorized dealer.
Precautions While
Driving
The system may not work correctly in
some driving conditions (see below):
the driver must control the vehicle at all
times.
Vehicle Not Aligned
The system may not detect a vehicle
travelling in the same lane, in the same
direction, but is not aligned. It also may
not detect a vehicle which is cutting in
from a side lane. Sufficient distance
from the vehicles ahead may not be
guaranteed in these cases.
The non-aligned vehicle can weave in
and out of the driving lane causing the
vehicle to brake or accelerate
unexpectedly.
Steering And Curves
Driving on curves with the system set
could limit speed and acceleration to
guarantee vehicle stability, even if no
vehicles are detected ahead.
When leaving the curve, the system
resets the previously set speed.
Note:
In cases of narrow curves, the
performance of the system could be
limited. In this case, it is advisable to
deactivate the system.
Using The System On Slopes
When driving on roads with a variable
incline, the system may not detect the
presence of a vehicle in the lane.
System performance could be limited
according to speed, load, traffic
conditions and steep slopes.
Lane Change
The system may not detect the
presence of a vehicle until it is fully in
your lane.
GUID-07146S0011EMSteering And Curves
161

In this case, sufficient distance from the
vehicle which is changing lanes may not
be guaranteed. It is advisable to pay the
utmost attention at all times and be
always ready to apply the brakes if
needed.
Small Vehicles
Some narrow vehicles (e.g. bicycles
and motorcycles) travelling near the
outer edges of the lane or which enter
the lane from curb side are not
detected until they are fully in the lane.Sufficient distance from the vehicles
ahead may not be guaranteed in these
cases.
Stationary Objects And Vehicles
The system cannot detect the presence
of stationary vehicles or objects. For
example, the system will not operate if
the vehicle ahead leaves the lane and a
vehicle ahead of that one is stationary in
that lane. Pay the utmost attention at all
times and be always ready to apply the
brakes if needed.
Objects And Vehicles Moving In
Opposite Or Crosswise Direction
The system cannot detect the presence
of objects or vehicles traveling in
opposite or crosswise directions and
consequently will not be operated.General Information
This vehicle has systems that operate
on radio frequency that comply with
Part 15 of the Federal Communications
Commission (FCC) rules and with
Industry Canada Standards RSS-
GEN/210/220/310.
Operation is subject to the following
two conditions:
1. The device may not cause harmful
interference.
2. The device must accept any
interference received, including
interference that may cause undesired
operation of the device.
Changes or modifications to any of
these systems by other than an
authorized service facility could void
authorization to use this equipment.
GUID-07146S0012EMLane ChangeGUID-07146S0013EMSmall VehiclesGUID-07146S0014EMObjects And Vehicles Moving In
Opposite Or Crosswise Direction
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If the obstacle is detected in the rear left
and/or right area, a single flashing arc
will be shown in the corresponding area
on the display and the system will emit
an acoustic signal, either at frequent
intervals or constantly.
In general, the vehicle is closer to the
obstacle when a single flashing arc is
shown on the display and the acoustic
signal becomes continuous.
If several obstacles are detected
simultaneously in the rear area, the
display will show all of them, regardless
of the area in which they were detected.
The color on the display depends on
the distance from and position of the
obstacle.
It is possible to exit from the display
screen by pressing the Rotary Pad,
however, the acoustic alert will remain
active.
Fault Indication
Parking sensor faults, if any, will be
indicated when REVERSE is engaged
by a message on the instrument cluster
display. Refer to "Warning Lights And
Messages" in "Getting To Know Your
Instrument Panel".
Messages On The Display
In case of system failure, a dedicated
message appears on the instrument
cluster for about 5 seconds.Cleaning The Front Sensors:Ifthe
display shows a message requiring the
sensors to be cleaned, make sure that
the outer surface and the underside of
the rear bumper is free of debris (e.g.
snow, mud, ice, etc.). Once these areas
are clear, place the ignition in STOP
mode. Then, return it to ON mode. If
the message is still displayed, contact
an authorized dealer.
Audio System Not Available :Ifthe
display shows a message that the
audio system is not available, it means
that the acoustic signal will be emitted
by the instrument panel, and not
through the vehicles speakers.
Note: Some conditions may influence
the performance of the ParkSense
system:
Reduced sensor sensitivity could
be due to the presence of ice, snow,
mud, or thick paint on the surface of
the sensor.
The sensors may detect a false
obstacle (echo interference) due to
mechanical interference, for example
when washing the vehicle or in
extreme weather.
The signals sent by the sensors can
be altered by the presence of
ultrasonic systems (e.g. pneumatic
brake systems of trucks or pneumatic
drills) near the vehicle.
System performance can be
influenced by the position of the
sensors. For example, due to a change
in the ride setting (caused by wear to
the shock absorbers or suspension),
by changing tires, overloading the
vehicle or operations that require the
vehicle to be lowered.
Be sure not to place bumper
stickers or other adhesives over the
sensors as this will affect system
performance.
Warning!
Drivers must be careful when backing up
even when using the Parking Sensor
system. 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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Note:If the sensors detect several
front and rear obstacles, the closest
obstacle is considered. An intermittent
signal will sound if the obstacles are at
the same distance (front and rear).
When the system emits an acoustic
signal, the volume of the Connect
system, if activated, is automatically
lowered.
Indication On Display
The driver can select the type of
warning they would like to be displayed
through the Connect system. To access
the function on the main menu, select in
the following order:
1. “Settings”
2. “Driver assistance”
3. “Park Sensors”
4. “Mode”
5. “Sound-Display”
Visual Indications
The system indicates the presence of
an obstacle by displaying a single arc in
the detected areas, in relation to the
distance of the object and the position
of the vehicle.
If the obstacle is detected in the front or
rear central area, a single arc will be
displayed as the obstacle approaches,
first constant, then flashing, in addition
to an acoustic signal. If the obstacle is detected in the front or
rear left and/or right area, a single
flashing arc will be shown in the
corresponding area on the display and
the system will emit an acoustic signal,
either at frequent intervals or constantly.
If several obstacles are detected
simultaneously in the front and rear
area, the display will show all of them,
regardless of the area in which they
were detected.
In general, the vehicle is closer to the
obstacle when a single or several
flashing arcs are shown on the display
and the acoustic signal becomes
continuous. The color on the display
depends on the distance from and
position of the obstacle.
It is possible to exit from the display
screen by pressing the Rotary Pad,
however, the acoustic alert will remain
active.
Fault Indication
Parking sensor faults, if any, will be
indicated by a message on the display
on the instrument cluster. Refer to
"Warning Lights And Messages" in
"Getting To Know Your Instrument
Panel".
Messages On The Display
In case of system failure, a dedicated
message appears on the instrument
cluster for about 5 seconds.Cleaning the front or rear
sensors: If the display shows a
message requiring the sensors to be
cleaned, make sure that the outer
surface and the underside of the front
and rear bumpers are free of debris
(e.g. snow, mud, ice, etc.). Once these
areas are clear, place the ignition in
STOP mode. Then, return it to ON
mode. If the message is still displayed,
contact an authorized dealer.
Audio system not available :Ifthe
display shows a message that the
audio system is not available, it means
that the acoustic signal will be emitted
by the instrument panel, and not
through the vehicles speakers.
Note: Some conditions may influence
the performance of the ParkSense
system:
Reduced sensor sensitivity could
be due to the presence of ice, snow,
mud, or thick paint on the surface of
the sensor.
The sensors may detect a false
obstacle (echo interference) due to
mechanical interference, for example
when washing the vehicle or in
extreme weather.
The signals sent by the sensors can
be altered by the presence of
ultrasonic systems (e.g. pneumatic
brake systems of trucks or pneumatic
drills) near the vehicle.
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Payload
The payload of a vehicle is defined as
the allowable load weight a truck can
carry, including the weight of the driver,
all passengers, 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
components in the system with the
lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles
or suspension components sometimes
specified by purchasers for increased
durability does 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 conditions, 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
insure 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
appropriate 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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broken, damaged, worn or have moved
from their correct fitting position. If any
of these things occur, contact your
authorized dealer.
Open welding or loose connections
may permit exhaust gas to enter the
passenger compartment.
Check the exhaust system each time
the vehicle is raised for lubrication or oil
change operations. Replace the
components if necessary, contact your
authorized dealer.
Performance
This vehicle is equipped with an engine
capable of delivering exceptionally fast
acceleration and speed:
Peak power: 505 HP at 6500 rpm.
Peak torque: 443 ft-lbs at
2500–5000 rpm.
Top speed: 190 mph (307 km/h).
Acceleration from 0 to 60 mph (0 to
100 km/h): 3.9 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 discovering 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 component
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 condensation 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 your authorized
dealer which exclusively has the skills
needed for the repair 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 your 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. For more information,
see the “Checking Levels” section in
the “Servicing And Maintenance”
chapter.
Have the car inspected at your
authorized dealer.
Remember that the car was not
designed to be driven exclusive on the
race track and that this use increases
stress and component wear.
177

Preheating the carbon ceramic
material brake discs
The brake discs must be warmed up to
make them fully efficient. You are
advised to perform the following
procedure:
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;
Then 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 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
5 minutes to allow the brakes to cool
down.
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