brake sensor Alfa Romeo Giulia 2019 Owner's Manual

Symbol What it means
FUEL LEVEL SENSOR FAILURE
The symbol switches on in the event of fuel level sensor failure.
Contact an Alfa Romeo Dealership as soon as possible.
EXTERIOR LIGHTS FAILURE
The symbol switches on to indicate a failure on the following lights: daytime running lights (DRLs) / parking lights / trailer direction
indicators (if present) / trailer lights (if present) / side lights / direction indicators / rear fog light / reversing light / brake lights /
number plate lights.
The failure may be caused by a blown bulb, a blown protection fuse or an interruption of the electrical connection.
Replace the bulb or the relevant fuse. Contact an Alfa Romeo Dealership.
KEYLESS START SYSTEM FAILURE
The symbol switches on in the event of Keyless Start system failure.
Contact an Alfa Romeo Dealership as soon as possible.
FUEL CUT-OFF SYSTEM FAILURE
The symbol switches on in the event of fuel cut-off system failure.
Contact an Alfa Romeo Dealership as soon as possible.
LANE DEPARTURE WARNING SYSTEM (LDW) FAILURE
The symbol comes on in the event of a failure in the Lane Departure Warning system.
Contact an Alfa Romeo Dealership as soon as possible.
WEAR ON BRAKE PADS
The symbol lights up when the brake pads have reached their wear limit.
Contact an Alfa Romeo Dealership as soon as possible.
IMPORTANT Always use genuine parts or similar because the Integrated Brake System (IBS) could detect anomalies.
AUTOMATIC HIGH BEAM HEADLIGHTS FAILURE
(where provided)
The symbol switches on to report a failure of the automatic main beam headlights.
Contact an Alfa Romeo Dealership as soon as possible to have the failure eliminated.
FUEL CUT-OFF SYSTEM OPERATION
The symbol switches on in the event of fuel cut-off system intervention.
For reactivating the fuel cut-off system, refer to the description in the "Fuel cut-off system" section in the "In an emergency"
chapter. If it is not possible to restore the fuel supply, contact an Alfa Romeo Dealership.
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ACTIVE SAFETYSYSTEMS
The vehicle may be equipped with the
following active safety devices:
ABS (Anti-Lock Brakes);
DTC (Drive Train Control);
ESC (Electronic Stability Control);
TC (Traction Control);
PBA (Panic Brake Assist);
HSA (Hill Start Assist);
AST (Alfa™ Steering Torque);
ATV (Alfa™ Active Torque Vectoring).
For the operation of the systems, see the
following pages.
ABS (Anti-lock Braking System)
This system, which is an integral part of
the braking system, prevents one or more
wheels from locking and slipping in all
road surface conditions, irrespective of
the intensity of the braking action,
ensuring that the vehicle can be
controlled even during emergency
braking and optimising stopping
distances.
The system intervenes during braking
when the wheels are about to lock,
typically in emergency braking or
low-grip conditions, when 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, or on corners.The Electronic Braking Force Distribution
(EBD) system completes the system
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 brake pedal
command given by pressing the brake
pedal is not transmitted hydraulically but
electronically, therefore, the light
pulsation that could be felt on the pedal
with the traditional system is no longer
perceptible.33) 34) 35) 36) 37) 38)
DTC (Drive Train Control)SYSTEM(where provided)
Some versions of this vehicle are
equipped with an automatically
activated/deactivated four-wheel drive
system (AWD), which offers an optimal
drive for countless driving conditions and
road surfaces. The system reduces the
slipping of the tyres to a minimum,
automatically redistributing the torque
to the front and rear wheels, as needed.
To maximize fuel savings, the car with
AWD automatically passes to rear-wheel
drive (RWD) when the road and
environmental conditions are such that
they would not cause the tyres to slip.When the road and environmental
conditions require better traction, the
vehicle automatically goes to AWD mode.
39)
IMPORTANT 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.
40)
ESC (Electronic Stability Control)
SYSTEM
The ESC system improves the directional
control and stability of the car in various
driving conditions.
The ESC system corrects the car’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 car to determine the trajectory
that the driver intends to follow and
compares it with the car’s effective
trajectory. When the real trajectory
deviates from the desired trajectory, the
ESC system intervenes to counter the
vehicle’s understeer or oversteer.
Oversteer: occurs when the car is
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SAFETY

48)The TC system cannot overrule the
natural laws of physics, and cannot increase
the grip available according to the condition
of the road.
49)The TC system cannot prevent
accidents, including those due to excessive
speed on corners, driving on low-grip
surfaces or aquaplaning.
50)The capability of the TC must never be
tested irresponsibly and dangerously, in
such a way as to compromise personal
safety and the safety of others.
51)The PBA system cannot overrule the
natural laws of physics, and cannot increase
the grip available according to the condition
of the road.
52)The PBA system cannot prevent
accidents, including those due to excessive
speed on corners, driving on low-grip
surfaces or aquaplaning.
53)The capability of the PBA system must
never be tested irresponsibly and
dangerously, in such a way as to compromise
the safety of the driver, the other occupants
of the vehicle or any other road user.
54)The HSA system is not a parking brake;
therefore, never leave the vehicle without
having engaged the electric parking brake,
turned the engine off and engaged first gear,
so that it is parked in safe conditions (for
further information read the "Parking"
paragraph in the "Starting and driving"
chapter).
55)There may be situations on small
gradients (less than 8%), with vehicle laden,
in which the Hill Start Assist system may not
activate, causing a slight reversing motion
and increasing the risk of collision with
another vehicle or object. The driver is, in any
case, responsible for safe driving.56)The AST system is an aid for driving and
does not relieve the driver of responsibility
for driving the vehicle.DRIVING ASSISTANCE
SYSTEMS
The vehicle can feature the following
driving assistance systems:
BSM (Blind Spot Monitoring);
FCW (Forward Collision Warning);
TPMS (Tyre Pressure Monitoring
System).
For the operation of the systems, see the
following pages.
BSM (Blind Spot Monitoring)SYSTEM
The BSM (Blind Spot Monitoring) system
uses two radar sensors, located in the
rear bumper (one for each side - see
fig. 58 ), to detect the presence of cars
(cars, trucks, motorbikes, etc.) in the rear
side blind spots of your car.
The system warns the driver about the
presence of vehicles in the detection
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when that vehicle is at a greater distance,
thus providing the possibility of acting on
the brakes more lightly and gradually.
This setting provides the drivers with the
maximum possible reaction time to
prevent a potential accident.
With the option set to "Near", the system
will warn the driver of a possible accident
with the vehicle in front when that vehicle
is close. This setting offers the driver a
lower reaction time compared to the
"Med" and "Far" settings, in the event of a
potential accident, but permits more
dynamic driving of the car.
The system sensitivity setting is kept in
the memory when the engine is switched
off.
System limited operation warning
If the dedicated message is displayed, a
condition limiting the system operation
may have occurred. The possible reasons
of this limitation are something blocking
the camera view or a fault.
In this condition it will still be possible to
drive the car normally, but automatic
braking will not be available in the event
of an impending collision.
If an obstruction is signalled, clean the
area of the windscreen indicated in
fig. 61.
When the conditions limiting the system
functions end, this will go back to normaland complete operation. Should the fault
persist, contact an Alfa Romeo
Dealership.
System failure warning
If the system switches off and a
dedicated message is shown on the
display, it means that there is a fault on
the system.
In this case, it is still possible to drive the
car, but you are advised to contact an
Alfa Romeo Dealership as soon as
possible.
Radar warning not available
If conditions are such that the radar
cannot detect obstacles correctly, the
system is deactivated and a dedicated
message appears on the display. This
generally occurs in the event of poor
visibility, such as when it is snowing or
raining heavily.
The system can also be temporarily
dimmed due to obstructions such as mud,
dirt or ice on the bumper. In such cases, a
dedicated message will be shown on the
display and the system will be
deactivated. This message can
sometimes appear in conditions of high
reflectivity (e.g. tunnels with reflective
tiles or ice or snow). When the conditions
limiting the system functions end, this
will go back to normal and complete
operation.In certain particular cases, this dedicated
message could be displayed when the
radar is not detecting any vehicles or
objects within its view range.
If atmospheric conditions are not the real
reason behind this message, check if the
sensor is dirty. It could be necessary to
clean or remove any obstructions in the
area shown in fig. 60.
If the message appears often, even in the
absence of atmospheric conditions such
as snow, rain, mud or other obstructions,
contact an Alfa Romeo Dealership for a
sensor alignment check.
In the absence of visible obstructions,
cleaning the radar surface, by manually
removing the decorative cover trim,
could be required. Have this operation
performed at an Alfa Romeo Dealership.
IMPORTANT It is recommended that you
do not install devices, accessories or
aerodynamic attachments in front of the
sensor or darken it in any way, as this can
compromise the correct functioning of
the system.
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Frontal collision alarm with active
braking
(where provided)
Selecting the “Warning-brake” function
from the “Mode” menu on the Connect
device, allows the FCW system to apply
braking to slow the vehicle down in the
event of a potential frontal impact, in
addition to activating visual and acoustic
messages.
This function applies an additional
braking pressure if the braking pressure
applied by the driver does not suffice to
prevent potential frontal impact.
The function is active with speed above
4.3 mph (7 km/h).
Driving in special conditions
In certain driving conditions, such as, for
example:
driving close to a bend;
the vehicle ahead is leaving a
roundabout;
vehicles with small dimensions and/or
not aligned in the driving lane;
lane change by other vehicles;
vehicles travelling at right angles to
the vehicle.
system intervention might be
unexpected or delayed. The driver must
therefore be very careful, keeping
control of the vehicle to drive in complete
safety.
IMPORTANT In particularly complex
traffic conditions, the driver can
deactivate the system manually through
the Connect system.
Driving close to a bend
When entering or leaving a wide bend, the
system may detect a vehicle that is in
front of you, but that is not driving in the
same lane fig. 62. In cases such as these,
the system may intervene.
The vehicle ahead is leaving a
roundabout
On a roundabout, the system could
detect the presence of a vehicle ahead
which is leaving the roundabout and cut in
fig. 63.Vehicles with small dimensions and/or
not aligned in the driving lane
The system cannot detect vehicles in
front of you but outside the range of the
radar sensor and may therefore not react
in the presence of small vehicles, such as
bicycles or motorcycles fig. 64.
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SAFETY

operation when all the pressure sensors
have been detected again.
IMPORTANT If wheels without pressure
sensors (e.g. wheels with winter tyres)
have been installed on the vehicle and the
standard wheels (with sensors) are
stored close the vehicle, the system
could detect the pressures of the latter
and consequently display the fault cycle
again once its has left the sensitive area.
WARNING
57)The system is an aid for vehicle driving,
it DOES NOT warn the driver about incoming
vehicles outside of the detection areas. The
driver must always maintain a sufficient
level of attention to the traffic and road
conditions and for controlling the trajectory
of the vehicle.
58)The Forward Collision Warning (FCW)
system is automatically deactivated when
RACE mode is selected.
59)The system is an aid for the driver, who
must always pay full attention while driving.
The responsibility always rests with the
driver, who must take into account the
traffic conditions in order to drive in
complete safety. The driver must always
maintain a safe distance from the vehicle in
front.
60)If the driver depresses the brake pedal
fully or carries out a fast steering during
system operation, the automatic braking
function may stop (e.g. to allow a possible
manoeuvre to avoid the obstacle).61)The system intervenes on vehicles
travelling in the same lane. People, animals
and things (e.g. pushchairs) are not taken
into consideration.
62)If the car must be placed on a roller
bench for maintenance interventions or if it
is washed in an automatic roller washing
tunnel with an obstacle in the front part (e.g.
another car, a wall or another obstacle), the
system may detect its presence and
activate. In this case the system must be
deactivated through the settings of the
Connect system.
63)The presence of the TPMS does not
permit the driver to neglect regular checks
of the tyre pressure, including for the spare
tyre, and correct maintenance: the system is
not used to signalling a possible tyre fault.
64)Tyre pressure must be checked with
tyres rested and cold. Should it become
necessary for whatever reason to check
pressure with warm tyres, do not reduce
pressure even though it is higher than the
prescribed value. Repeat the check when the
tyres are cold.
65)Should one or more wheels be fitted
without sensors, the system will no longer be
available and a warning message will be
shown on the display, until wheels with
sensors are fitted again.
66)The TPMS cannot indicate sudden tyre
pressure drops (e.g. if a tyre bursts). In this
case, stop the vehicle, braking with caution
and avoiding abrupt steering.
67)Changes in outside temperature may
cause tyre pressures to vary. The system
may temporarily indicate insufficient
pressure. In this case, check the tyre
pressure when cold and, if necessary,
restore the inflation values.68)Replacing standard tyres with winter
tyres and vice versa requires TPMS system
adjustment that must only be performed by
Alfa Romeo Dealerships.
69)When a tyre is removed, it is advisable
to replace the rubber valve seal as well:
contact an Alfa Romeo Dealership. The
fitting/removal of the tyres and/or rims
require special care. To avoid damaging or
fitting the sensors incorrectly, tyre and/or
rim fitting/removal operations should only
be carried out by specialised staff. Contact
an Alfa Romeo Dealership.
IMPORTANT
22)The system may have limited or absent
operation due to weather conditions such as:
heavy rain, hail, thick fog, heavy snow.
23)The section of the bumper before the
sensor must not be covered with adhesives,
auxiliary headlights or any other object.
24)System intervention might be
unexpected or delayed when other vehicles
transport loads projecting from the side,
above or from the rear, with respect to the
normal size of the vehicle.
25)Operation can be adversely affected by
any structural change made to the vehicle,
such as a modification to the front geometry,
tyre change, or a heavier load than the
standard load of the vehicle.
26)Incorrect repairs made on the front part
of the vehicle (e.g. bumper, chassis) may alter
the position of the radar sensor, and
adversely affect its operation. Go to an Alfa
Romeo Dealership for any operation of this
type.
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SAFETY

RECALLING THE SPEED
For versions with automatic transmission
operating in D mode (Drive - automatic),
press and release the RES
fig. 100 button to recall the previously
set speed.
For versions with manual gearbox or
automatic transmission in Autostick
(sequential) mode, before recalling the
previously set speed you should
accelerate until getting close to it, then
press and release the RES button.
DEACTIVATING THE DEVICE
Lightly pressing the brake pedal
deactivates the Cruise Control without
deleting the stored speed.
The Cruise Control may be deactivated
also by applying the electric parking
brake or when the braking system is
operated (e.g. operation of the ESC
system).
The stored speed is deleted in the
following cases:
pressing the on/off button or
switching off the engine;
if there is a malfunction in the Cruise
Control.
DEACTIVATING THE DEVICE
The Cruise Control is deactivated by
pressing the activation/deactivation
button or bringing the ignition device to
the STOP position.
WARNING
114)When travelling with the device active,
never move the gear lever to neutral.
115)In case of a malfunction or failure of
the device, contact an Alfa Romeo
Dealership.
116)The Cruise Control can be dangerous if
the system cannot keep a constant speed. In
specific conditions speed may be excessive,
resulting in the risk of losing control of the
vehicle and causing accidents. Do not use the
device in heavy traffic or on winding, icy,
snowy or slippery roads.
ACTIVE CRUISE CONTROL
(where provided)
117) 118) 119) 120) 121) 122)
41) 42) 43) 44) 45) 46) 47)
The Active Cruise Control (ACC) is a
driver assist device which combines the
Cruise Control functions with one for
controlling the distance from the vehicle
ahead.
The device allows to hold the vehicle at
the desired speed without needing to
press the accelerator. It also allows to
hold a given distance from the vehicle
ahead (the distance can be set by the
driver).
The Active Cruise Control (ACC) uses a
radar sensor, located behind the front
bumper fig. 101 and a camera, located in
the middle area of the windscreen
fig. 102, to detect the presence of a
vehicle close ahead.
121

IMPORTANT It is dangerous to leave the
device activated when it is not used.
There is a risk of inadvertently activating
it and losing control of the vehicle due to
unexpected excessive speed.
Pausing / Deactivating
With the device enabled (speed not set),
press the
button.
With the device activated (speed set),
press the
button to enter the Paused
state. The display shows the white icon
with the speed in brackets. Press the
button again to deactivate the device
completely.
SETTING THE DESIRED SPEED
The speed can be set from a minimum of
30 km/h (or 20 mph for markets with
instrument panels in mph) to a maximum
of 180 km/h (or 110 mph for markets
with instrument panels in mph).
When the car reaches the desired speed,
raise/lower the SET fig. 105 switch and
release it to activate the device. When
the accelerator is released, the vehicle
will keep the selected speed
automaticallyWhile the accelerator pedal is pressed:
the device 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 device 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 parking 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 settable speed range;
when the ESC (or ABS or other
stability control systems) are operatingor have just operated;
when the ESC system is off;
when the Forward Collision Warning
Plus system (where provided) is braking
automatically;
in the event of device 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).
In case of system set, the conditions
described above also cause a
cancellation or deactivation of the
system with times that may vary
according to the conditions.
IMPORTANT The device will not be
deactivated when speeds higher than
those set are reached by pressing the
accelerator pedal (180 km/h or 110 mph,
the latter for instrument panels set to
miles per hour). In these conditions, the
device may not work correctly and it is
advisable to deactivate it.
CHANGING SPEED
Speed increase
Once the device has been activated, you
can increase the speed by lifting the SET
switch. Each time it is operated, the
speed increases by 1 mph (1 km/h).
By holding the button up, the set speed
will increase in steps of 6 mph (10 km/h)
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of the vehicle. Failure to comply with
these precautions may cause serious
accidents and fatal injuries.
SETTING THE DISTANCE BETWEEN
VEHICLES
The distance between your vehicle and
the vehicle ahead may be set to 1 bar
(short), 2 bars (medium), 3 bars (long),
4 bars (maximum) fig. 107.
The distances from the vehicle ahead are
proportional to speed.
The interval of time with respect to the
vehicle ahead remains constant and
varies from 1 second (for the short
distance 1-bar setting) to 2 seconds (for
the maximum distance 4-bar setting).
The set distance is shown on the display
by a dedicated icon.
The setting is 4 (maximum) the first time
the device is used. After the distance hasbeen modified by the driver, the new
distance will be stored also after the
system is deactivated and reactivated.
To decrease the distance
Press and release the fig. 108 button to
decrease the distance setting. The
distance setting decreases by one bar
(shorter) every time the button is
pressed.
The set speed is held if there are no
vehicles ahead. Once the shortest
distance has been reached, a further
press of the button will set the longest
distance.
If a slower car is detected in the same
lane, the car icon on the display turns
from grey to white. The device
automatically adjusts the car’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 Active Cruise
Control device sensor;
the distance setting is changed;
the Active Cruise Control device is
deactivated/paused.
IMPORTANT The maximum breaking
applied by the device is limited. The
driver may apply the brakes in all cases if
needed.
IMPORTANT If the device 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 advisable to brake
immediately as necessary to hold a safe
distance from the vehicle ahead.
IMPORTANT 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.
IMPORTANT The driver is fully
responsible for holding a safe distance
from the vehicle ahead respecting the
highway code in force in the respective
country.
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Small cars
Some narrow cars (e.g. bicycles and
motorcycles) travelling near the outer
edges of the lane or which enter the lane
from kerbside are not detected until they
are fully in the lane.
Sufficient distance from the cars ahead
may not be guaranteed in these cases.
Stationary objects and vehicles
The device cannot detect the presence of
stationary vehicles or objects. For
example, the device will not operate if
the vehicle ahead leaves the lane and a
vehicle ahead of that one is standing on
the lane. Pay the utmost attention at all
times and be always ready to press the
brakes if needed.
Objects and cars moving in opposite or
crosswise direction
The device cannot detect the presence of
objects or vehicles travelling in opposite
or at right-angles and consequently will
not be operated.
WARNING
117)Pay the utmost attention while driving
at all times and be always ready to press the
brakes if needed.118)The system is an aid for the driver, who
must always pay full attention while driving.
The responsibility always rests with the
driver, who must take into account the
traffic conditions in order to drive in
complete safety. The driver must always
maintain a safe distance from the vehicle in
front.
119)The device is not activated in presence
of pedestrians, oncoming vehicles in the
opposite direction of travel or moving in the
crosswise direction and stationary objects
(e.g. a vehicle standing in a queue or a broken
down vehicle).
120)The device cannot take account of
road, traffic and weather conditions, and
conditions of poor visibility (e.g. fog).
121)The device does not always fully
recognise complex driving conditions that
could cause it to determine the safe distance
to be held incorrectly or not at all.
122)The device cannot apply the maximum
braking force: the car will not be stopped
completely.
IMPORTANT
41)The system may have limited or absent
operation due to weather conditions such as:
heavy rain, hail, thick fog, heavy snow.
42)The section of the bumper before the
sensor must not be covered with adhesives,
auxiliary headlights or any other object.
43)Operation can be adversely affected by
any structural change made to the vehicle,
such as a modification to the front geometry,
tyre change, or a heavier load than the
standard load of the vehicle.44)Incorrect repairs made on the front part
of the vehicle (e.g. bumper, chassis) may alter
the position of the radar sensor, and
adversely affect its operation. Go to an Alfa
Romeo Dealership for any operation of this
type.
45)Do not tamper with nor carry out any
intervention on the radar sensor or on the
camera on the windscreen. In the event of a
sensor failure, contact an Alfa Romeo
Dealership.
46)Do not wash with high-pressure jets in
the bumper lower area: in particular do not
operate on the system's electrical connector.
47)Be careful in the case of repairs and new
paintings in the area around the sensor
(panel covering the sensor on the left side of
the bumper). In the event of a frontal impact
the sensor may automatically deactivate
and display a warning to indicate that the
sensor needs to be repaired. Even without a
malfunction warning, deactivate the system
operation if you think that the position of the
radar sensor has changed (e.g. due to
low-speed frontal impact as during parking
manoeuvres). In these cases, go to an Alfa
Romeo Dealership to have the radar sensor
realigned or replaced.
127