2021 ALFA ROMEO GIULIA sensor

109

Activating Adaptive Cruise Control (ACC)
The minimum set speed for the ACC system is
19 mph (30 km/h) and the maximum is110 mph (180 km/h).
The system cannot be activated:
When pressing the brake pedal.
When the brakes are overheated.
When the Electric Park Brake has been
operated.
When either PARK, REVERSE or 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 Electronic Stability Control (ESC)
(or Anti-Lock Brake System (ABS) or other
stability control systems) are operating or
have just operated.
When the ESC system is off.
When the Forward Collision Warning system
(if equipped) is braking automatically.
In the event of a 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 deactiva -
tion 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 recom -
mended to deactivate it.
To Activate/Deactivate
The system has four operating states:
Enabled (speed not set)
Activated (speed set)
Paused
Deactivated
•
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 vehicle ahead
and hold the vehicle for approximately
two minutes in the stop position. If the
vehicle ahead does not start moving
within two minutes, the parking brake
will be activated and the ACC sys t

em
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.
WARNING! (Continued)
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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.Distance Button
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 illumi -
nates from grey to white. The system automat -
ically adjusts the vehicle’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 deac -
tivated/paused.
Overtake Aid
When driving with ACC engaged and following
a vehicle at a speed greater than 45 mph
(70 km/h), the system will provide an addi -
tional acceleration up to the ACC set speed to
assist in passing the vehicle. This additional acceleration is triggered when the driver
utilizes the left turn signal and will only be
active when passing on the left hand side.

The system detects the direction of traffic auto
-
matically when the vehicle passes from left hand
traffic to right hand traffic. In this case, the over -
taking assist function is only active when the
reference vehicle is overtaken on the right. The
additional acceleration is deactivated when the
driver uses the right direction indicator and
returns to the original lane.

“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.

In the event that the ACC system brings your
vehicle to a standstill while following the
vehicle in front, if the vehicle in front starts
moving within two seconds of your vehicle
coming to a standstill, your vehicle will resume
motion without the need for any driver action.
If the vehicle in front does not start moving
within two seconds of your vehicle coming to a
standstill, the driver will have to push the RES/
SET switch upward to restart.
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
objects 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.
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.

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Deactivation
The system is deactivated and the set speed is
canceled if:
The on/off button is pushed (when the
system is on or paused).
The ignition is placed in the OFF position
RACE mode is activated (Quadrifoglio
models)
The system is canceled (the set speed and
distance are stored):
When the system is paused
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page 109
When the conditions shown in the “Acti -
vating Adaptive Cruise Control (ACC)”
section occur
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page 109
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
vehicle’s 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 rearview 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 disap -
peared. When the conditions limiting the system func
-
tions end, normal operation will resume.
Should the fault persist, contact an authorized
dealer.
Precautions While Driving With ACC
In certain driving situations, ACC may have
detection issues. In these cases, ACC may
brake late or unexpectedly. The driver needs
to stay alert and may need to intervene. The
following are examples of these types of situa -
tions:
Offset Driving
ACC may not detect a vehicle in the same lane
that is offset from your direct line of travel, or
a vehicle merging in from a side lane. There
may not be sufficient distance to the vehicle
ahead. The offset vehicle may move in and out
of the line of travel, which can cause your
vehicle to brake or accelerate unexpectedly.
Turns And Bends
When driving on a curve with ACC engaged,
the system may increase or decrease the
vehicle speed for stability, with no vehicle
ahead detected. Once the vehicle is out of the
curve the system will resume your original set
speed. This is a part of normal ACC system
functionality.
NOTE:

On tight turns ACC performance may be
limited. In this case, it is advisable to deac
-
tivate the system.
The system only limits the speed DURING a
bend and not BEFORE it.
Turn Or Bend Example
Using ACC On Hills
When driving on hills, ACC may not detect a
vehicle in your lane. Depending on speed,
vehicle load, traffic conditions, and the steep -
ness of the hills, ACC performance may be
limited.

NOTE:

The driver must maintain control of the
vehicle, remain alert, and be ready to apply the
brakes if needed.
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To Activate/Deactivate
To Activate
To activate the HAS system, push the button
located on the left side of the steering wheel.Highway Assist Button
Suspension Conditions
The following operations will suspend the HAS
system:
Steer manually
Press the brake pedal
Disable the ACC device
Activate the turn signals
Push the ACC activation setting button for
two seconds to activate Cruise Control
Place the gear selector in PARK, REVERSE,
or NEUTRAL
Reactivating the ACC system will reactivate
HAS
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page 107. Automatic Deactivation
The system can be deactivated in any of the
following situations:
If there are narrow bends
When hands are removed from the steering
wheel
If the left or right turn signal is activated
If the driver intentionally changes lanes
without using the turn signal
If the driver’s seat belt is released
If the gear selector is placed in DRIVE
If the “Active Braking” function is activated

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page 151
If the vehicle exits the highway
If the lane markings are not detected by the
camera
If the ACC device is deactivated
If the vehicle speed exceeds 90 mph
(145 km/h)

NOTE:

When the HAS system is turned off, the
symbol on the display turns red and then
grey.
Hands on the steering wheel are detected
by a capacitive sensor installed in it. When the automatic suspension conditions
are over, HAS will be automatically reacti
-
vated.
Operation
The HAS system only operates when the
driver’s hands are on the steering wheel.
If the system detects that the driver’s hands
have been removed from the steering wheel,
the system will alert the driver to place their
hands back on the steering wheel

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page 117.
If the vehicle crosses the lane boundary, the
steering wheel will vibrate and the dedicated
screen will appear in the instrument cluster
display.

NOTE:

The HAS system may take up to five seconds
to turn on once all conditions are met. During
this time, a grey indicator light will appear on
the instrument cluster display and the system
will automatically activate as soon as all of the
conditions are met with no intervention from
the driver.
The following conditions must be met before
the HAS system turns on:
The HAS system must be enabled by
pushing the button on the steering wheel
The vehicle must be on a highway
ACC must be activated
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117

The right and left lane boundaries must be
visible
The vehicle speed must be between 0 and
90 mph (0 and 145 km/h)
The camera, radar, and radio system must
be functioning properly
The road lane width must be between 8.5 ft
and 13.7 ft (2.6 m and 4.2 m)
The turn signals must not be activated
The HAS system must be functioning prop-
erly
Other operating limits:
If the speed of ACC can be set to a higher
value (top speed 110 mph (180 km/h), HAS
is only available as long as the vehicle
speed is equal to or less than 90 mph
(145 km/h).
When the ACC speed is reduced and the
vehicle speed is less than 90 mph
(145 km/h), the system will automatically
reactivate.

If the ACC speed is set to 90 mph (145 km/h),
traveling downhill may increase the vehicle
speed. The HAS system will deactivate until
the speed returns to 90 mph (145 km/h).

Indications On The Display
The HAS system status can always be viewed
in the instrument cluster display.
The system status is indicated by the color of
the symbol on the display.
The HAS system uses sensors in the steering
wheel to detect if the driver’s hands are on it.
If the driver’s hands are not on the steering
wheel, a series of warnings will appear in the
instrument cluster display to alert the driver to
reposition their hands on the steering wheel.
An acoustic signal will also sound. After a
period of time, the HAS system will disable if
the driver’s hands do not return to the steering
wheel.
After a period of time, the HAS system will
disable if the driver has not repositioned their
hands on the steering wheel.
When the system does not detect hands on
the steering wheel, it will warn the driver by
displaying a dedicated screen on the instru -
ment cluster display.
System Status
Active System
When the system is active, the screen below
will appear in the “Driver Assistance” menu on
the instrument cluster display.
HAS Active
If on a different menu screen, a symbol will
appear on the instrument cluster display indi -
cating that the system is active.
When the driver’s hands are removed from the
steering wheel, the system disables after a few
seconds. A screen will appear in the instru-
ment cluster display warning the driver to
return their hands to the steering wheel.
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119

System Limited Operation
The HAS system may have limited or reduced
functionality when one of the following condi-
tions occur:
Lane markings are not clear or in conditions
of poor visibility (e.g. in heavy rain, snow,
fog, etc.)
Either the camera or radar are damaged,
covered, or obstructed (e.g. by mud, ice,
snow, etc.)
When driving on hills or roads with narrow
bends
Near highway toll booths
When the highway entrance or exit is wider
than 20 ft (6 m)
If the camera is exposed to glare caused by
reflections or direct sunlight
If the navigation system information is
unavailable or being recalculated

NOTE:

If the vehicle approaches a bend that is too
narrow with respect to the current speed,
the HAS system will disable.
If damage to the windshield occurs, have
the windshield replaced by an authorized
dealer as soon as possible.
TRAFFIC JAM ASSIST (TJA)
SYSTEM — IF EQUIPPED
The Traffic Jam Assist (TJA) system can be acti -
vated on all road types. The system uses a
camera to detect lane markings and keep the
vehicle in the center of the lane.
When the system is unable to detect lane
markings, it will still operate using surrounding
traffic. This can occur in congested traffic
scenarios, when the vehicles ahead or
surrounding obstruct the visibility of the lane
markings. When the speed is below 12 mph
(20 km/h), the system can use a lock-on
strategy that allows the vehicle to automati -
cally follow the vehicle ahead. The TJA system combines Adaptive Cruise
Control (ACC) functions with Lane Departure
Warning functions to maintain vehicle speed
and steering wheel behavior.

NOTE:

Do not use the TJA system while driving in
urban areas.
To Activate/Deactivate
To activate the system, push the button on the
left side of the steering wheel.
To deactivate the system, push the button
again.
Traffic Jam Assist Button
WARNING!
To prevent serious injury or death:
Always remain alert and be ready to take
control of the vehicle in the event that the
HAS system disables.
Always keep your hands on the steering
wheel when the HAS system is activated.
Maintain a safe distance from other vehi -
cles and pay attention to traffic condi -
tions.
Do not place any objects on the steering
wheel (e.g. steering wheel covers) which
could interfere with the hand detection
sensor.
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Suspension Conditions
The following operations will suspend the TJA
system:
Pressing the brake pedal
Opening the driver’s door
Disabling ACC
If the vehicle speed exceeds 37 mph
(60 km/h)
Releasing the driver’s seat belt
Placing the gear selector in PARK,
REVERSE, or NEUTRAL
If the Forward Collision Warning system or
“Active Braking” intervenes
Automatic Deactivation
System operation will be temporarily disabled
under the following conditions:
When traveling around narrow bends
If the lane boundaries are not detected
One of the two lines is interrupted
The sun is low and reflects on the radar
camera
If the turn signals are activated
If the driver intentionally changes lanes
without using the turn signal
If manual steering begins
If the driver’s hands are removed from the
steering wheel
When there is no surrounding traffic and
there are no horizontal lane boundaries
If the system is not functioning properly
If lateral acceleration is high

NOTE:

When TJA is turned off, the symbol in the
instrument cluster display will turn red, and
then grey.
A sensor in the steering wheel detects
whether the driver’s hands are placed on
the steering wheel.
When the automatic suspension conditions
are over, the TJA system will be automatically
reactivated.
Operation
The TJA system can only operate when the
driver’s hands are on the steering wheel.
If the system detects that the driver’s hands
have been removed from the steering wheel, a
message will appear in the instrument cluster
display to alert the driver to place their hands
back on the wheel.
NOTE:

If the vehicle begins to cross the lane
boundary, the steering wheel will vibrate
and a dedicated screen will appear in the
instrument cluster display.

The TJA system may take up to five seconds
to become active once all conditions are met.

The following conditions must be met in order
to activate the system:
The TJA system must be enabled
The Adaptive Cruise Control (ACC) system
must be turned on
The right and left lane boundaries must be
recognized by the system
The vehicle must be traveling at a speed
between 0 and 37 mph (0 and 60 km/h)
The camera, radar, and radio system must
be functioning properly
The road lane width must be between 8.5 ft
and 13.7 ft (2.6 m and 4.2 m)
The turn signals must be turned off

The TJA system must be functioning properly

If the ACC speed is set to 37 mph (60 km/h)
or less, traveling downhill may increase the
vehicle speed. The system will remain inac -
tive until the speed returns to 37 mph
(60 km/h) or less.
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Indications On The Display
The TJA system status is indicated by the color
of the symbol in the instrument cluster display.
The system uses sensors in the steering wheel
to detect if the driver’s hands are present. If
the driver’s hands are removed, a series of
warnings will appear in the instrument cluster
display to alert the driver to reposition their
hands on the steering wheel. Acoustic signals
will also be emitted.
If the driver’s hands are not returned to the
steering wheel after a period of time, the
system will be disabled.
System Status
Active System
An active system is indicated by the following
screen in the “Driver Assistance” menu on the
instrument cluster display.TJA System Active Active System (Hands Removed From The
Steering Wheel For A Short Time)
The following screen will appear in the instru
-
ment cluster display immediately after the
driver’s hands are removed from the steering
wheel. The system still remains active at this
time.
Hands Removed Initial Warning
If the driver does not return their hands to the
steering wheel within a few seconds, the
following screen will appear in the instrument
cluster display.
Hands Removed Secondary Warning Active System (Hands Removed From The
Steering Wheel For A Long Time)
If the driver’s hands have still not been
returned to the steering wheel, the following
screen will appear in the instrument cluster
display.
Hands Removed Final Warning
An acoustic signal will sound until the driver
regains control of the vehicle (hands on
steering wheel). The system is still active at
this time.
If the driver’s hands are not returned to the
steering wheel after a period of time, a deacti -
vation message will appear on the instrument
cluster display and the steering wheel control
will be deactivated.
Once the indicator light on the display turns
grey, the system is no longer active and the
driver must take control of the vehicle. At this
time, the Adaptive Cruise Control (ACC) system
and Lane Departure Warning system will also
be disabled.
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