Volvo XC90 (2021 year). Manual in english — page 21
DRIVER SUPPORT
* Option/accessory.
357
If a passing vehicle's speed is more than
15 km/h (9 mph) faster than your vehicle, BLIS
will not react.
The light illuminates on the side of the
vehicle where the system has detected the
vehicle. If the vehicle is passed on both
sides simultaneously, both lights come on.
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and help make it safer – it cannot han-
dle all situations in all traffic, weather
and road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgment. The driver is always respon-
sible for ensuring the vehicle is driven
in a safe manner, at the appropriate
speed, with an appropriate distance to
other vehicles, and in accordance with
current traffic rules and regulations.
Related information
•
Driver support systems (p. 282)
•
Activating or deactivating BLIS (p. 357)
•
•
Activating or deactivating BLIS
The BLIS
89
function can be activated or deac-
tivated.
Activate or deactivate the
function using this button in
the center display's Function
view.
•
GREEN button indicator light – the func-
tion is activated.
•
GRAY button indicator light – the function
is deactivated.
If BLIS is activated when the engine is started,
the indicator lights in the rearview mirrors will
flash once.
If BLIS is deactivated when the engine is
turned off, it will remain off the next time the
engine is started and the indicator lights will
not illuminate.
Related information
•
•
89
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
358
BLIS limitations
BLIS
90
functionality may be reduced in cer-
tain situations.
Keep the marked area clean (on both the left and
right sides of the vehicle)
91
.
Examples of limitations:
•
Dirt, ice and snow covering the sensors
may reduce functionality and prevent the
system from providing warnings.
•
The BLIS function is automatically deacti-
vated if a trailer, bicycle holder or similar is
connected to the vehicle's electrical sys-
tem.
•
For BLIS to function effectively, bicycle
holders, luggage racks or similar should
not be mounted on the vehicle's towbar.
WARNING
•
BLIS does not work in sharp curves.
•
BLIS does not work when the vehicle
is being reversed.
The function uses the vehicle's radar sen-
sors, which have certain general limita-
tions.
Related information
•
•
Camera/radar sensor limitations (p. 395)
90
Blind Spot Information
91
Note: This illustration is general and details may vary depending on model.
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DRIVER SUPPORT
* Option/accessory.
359
BLIS messages
A number of messages related to BLIS
92
may
be displayed in the instrument panel. Several
examples are provided below.
Message
Meaning
Blind spot sensor
Service required
The system is not functioning as intended. Contact a workshop
A
.
Blind spot system off
Trailer attached
BLIS and CTA
B
have been deactivated because a trailer has been connected to the vehicle's electrical system.
A
An authorized Volvo workshop is recommended.
B
Cross Traffic Alert
*
A text message can be erased by briefly press-
ing the
button in the center of the right-
side steering wheel keypad.
If a message cannot be erased, contact a
workshop
A
.
Related information
•
•
92
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
360
Driver Alert Control
The Driver Alert Control (DAC) function is
designed to help alert the driver to erratic
behavior, e.g. if the driver is distracted or
showing signs of fatigue.
The objective of the function is to detect
slowly deteriorating driving behavior and is
primarily intended to be used on major roads.
The function is not intended for use in city traf-
fic.
DAC is activated when the vehicle's speed
exceeds 65 km/h (40 mph) and remains
active as long as speeds are above 60 km/h
(37 mph).
Driver Alert Control detects the vehicle's position in
the traffic lane.
A camera monitors the traffic lane's marker
lines and compares the direction of the road
with the driver's movements of the steering
wheel.
The vehicle is moving erratically in the lane.
If driving behavior becomes
considerably erratic, the
driver will be alerted by this
symbol in the instrument
panel, an audible signal and
the message
Time for a
break
.
If the vehicle is equipped with Sensus
Navigation
*
and the
Rest Stop Guidance
function is activated, suggestions will also be
provided for suitable places to take a break.
The warning will be repeated after a short time
if driving behavior does not improve.
WARNING
Driver Alert Control must not be used to
extend a period of driving. The driver
should plan in breaks at regular intervals
and make sure they are well rested.
WARNING
An alarm from Driver Alert Control should
be taken very seriously since a sleepy driver
is often not aware of their own condition.
If the alarm sounds or you feel fatigued:
•
Stop the vehicle safely as soon as pos-
sible and rest.
Studies have shown that it is just as dan-
gerous to drive while tired as it is to drive
under the influence of alcohol or other
stimulants.
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DRIVER SUPPORT
* Option/accessory.
361
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and help make it safer – it cannot han-
dle all situations in all traffic, weather
and road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgment. The driver is always respon-
sible for ensuring the vehicle is driven
in a safe manner, at the appropriate
speed, with an appropriate distance to
other vehicles, and in accordance with
current traffic rules and regulations.
Related information
•
Driver support systems (p. 282)
•
Activating or deactivating Driver Alert
Control (p. 361)
•
Selecting guidance to a rest area if the
Driver Alert Control warning has been
given (p. 361)
•
Driver Alert Control limitations (p. 362)
Activating or deactivating Driver
Alert Control
The Driver Alert Control (DAC) function can
be activated or deactivated.
1. Tap
Settings
in the center display's Top
view.
2. Select
My Car
IntelliSafe
Driver
Alert
.
3. Select/deselect
Alertness Warning
to
activate/deactivate the function.
Related information
•
•
Driver Alert Control limitations (p. 362)
Selecting guidance to a rest area if
the Driver Alert Control warning
has been given
In vehicles equipped with Sensus
Navigation
*
, the driver can activate a guide
that can automatically suggest a suitable rest
stop if the Driver Alert Control (DAC) warning
is given.
The
Rest Stop Guidance
function can be
switched on or off.
1. Tap
Settings
in the center display's Top
view.
2. Select
My Car
IntelliSafe
Driver
Alert
.
3. Select/deselect
Rest Stop Guidance
to
activate/deactivate the function.
Related information
•
•
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DRIVER SUPPORT
* Option/accessory.
362
Driver Alert Control limitations
Driver Alert Control (DAC) functionality may
be reduced in certain situations.
In certain situations, the system may provide a
warning even if it has not detected a change in
driving behavior, e.g.:
•
in strong crosswinds
•
on grooved road surfaces.
WARNING
In certain cases, driving behavior might not
be affected despite the driver's fatigue –
when using the Pilot Assist
*
function –
resulting in the driver not getting a warning
from DAC.
It is therefore very important to always
stop and take a break at the slightest sign
of fatigue, regardless of whether the func-
tion has issued a warning or not.
The function uses the vehicle's camera and
radar sensor, which has certain general
limitations.
Related information
•
•
Camera/radar sensor limitations (p. 395)
Distance Alert
*
93
The Distance Alert function can help the
driver become aware if the time interval to
the vehicle in front is too short. The vehicle
must be equipped with a head-up display
*
in
order to display Distance Alert.
Symbol for Distance Alert on the windshield with
head-up display
In vehicles equipped with a head-up display, a
symbol will be displayed on the windshield as
long as the time interval to the vehicle ahead
is shorter than the set time interval. However,
the
Show Driver Support
function must be
activated under Settings in the vehicle's menu
system.
Distance Alert is active at speeds
above 30 km/h (20 mph) and only reacts for
vehicles ahead moving in the same direction
as your vehicle. No distance information is
provided for oncoming, slow-moving or sta-
tionary vehicles.
Distance Alert warning light displayed on the wind-
shield.
Even if the vehicle is not equipped with head-
up display, a warning light will be displayed on
the windshield and glow steadily if the time
interval to the vehicle ahead is shorter than the
set time interval.
Visual warnings on the windshield may be
difficult to notice in cases of strong sun-
light, reflections, extreme light contrasts,
or if the driver is wearing sunglasses or is
not looking straight ahead.
93
Distance Alert
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DRIVER SUPPORT
* Option/accessory.
363
Distance Alert is deactivated while Adap-
tive Cruise Control
*
or Pilot Assist
*
is
active.
WARNING
Distance Alert only reacts of the time inter-
val to the vehicle ahead is shorter than the
preset value – vehicle speed is not affec-
ted.
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and help make it safer – it cannot han-
dle all situations in all traffic, weather
and road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgment. The driver is always respon-
sible for ensuring the vehicle is driven
in a safe manner, at the appropriate
speed, with an appropriate distance to
other vehicles, and in accordance with
current traffic rules and regulations.
Related information
•
Activating or deactivating Distance Alert
(p. 363)
•
Distance Alert limitations (p. 364)
•
Setting time interval to the vehicle ahead
(p. 326)
•
Collision risk warning from driver support
(p. 323)
•
Activating or deactivating Distance
Alert
94
Distance Alert can be turned off. The function
is only available in vehicles that can display
information on the windshield with a head-up
display
*
.
Activate or deactivate the
function using this button in
the center display's Function
view.
•
GREEN button indicator light – the func-
tion is activated.
•
GRAY button indicator light – the function
is deactivated.
Distance Alert is automatically activated each
time the engine is started.
Related information
•
•
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DRIVER SUPPORT
* Option/accessory.
364
Distance Alert limitations
95
Distance Alert functionality may be reduced
in certain situations. The function is only
available in vehicles that can display informa-
tion on the windshield with a head-up dis-
play
*
.
WARNING
•
Detection ability may be affected by
vehicle size, e.g. motorcycles, which
can cause the warning light to come on
at a shorter time interval than that set
or cause the warning to be temporarily
absent.
•
Very high speeds can cause the light to
come on at a shorter time interval than
that set due to limitations in the range
of the radar unit.
The function uses the vehicle's camera and
radar sensor, which has certain general
limitations.
Related information
•
•
Camera/radar sensor limitations (p. 395)
•
Cross Traffic Alert
*
96
Cross Traffic Alert(CTA) is a supplementary
driver support system to BLIS
97
that is
intended to help the driver detect vehicles
crossing behind the vehicle while backing up.
The
auto-brake
subfunction can help the
driver stop the car if there is a risk of collision
with an unobserved vehicle.
Examples of areas in which Cross Traffic Alert can
help the driver detect obstacles while backing up.
The function is primarily designed to detect
vehicles, but in certain cases can also detect
pedestrians or smaller objects such as bicy-
cles.
The function is only active when the vehicle is
moving backward or reverse gear is engaged.
If the function detects that something is
approaching your vehicle from the side:
•
an audible signal will sound from either
the left or right speaker, depending on
which side of your vehicle the object is
approaching from.
•
an icon will illuminate in the
Park Assist
System
graphic on the screen.
•
an icon will appear in the Park Assist Cam-
era's Top view.
Illuminated Cross Traffic Alert icon in the
Park
Assist System
graphic on the screen.
If the driver does not pay attention to the
warning from the function and a collision is
unavoidable, the
auto brake
function will
intervene to stop the vehicle and a text will be
94
Distance Alert
95
Distance Alert
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DRIVER SUPPORT
* Option/accessory.
365
shown on the instrument panel to explain why
the vehicle was braked.
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and help make it safer – it cannot han-
dle all situations in all traffic, weather
and road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgment. The driver is always respon-
sible for ensuring the vehicle is driven
in a safe manner, at the appropriate
speed, with an appropriate distance to
other vehicles, and in accordance with
current traffic rules and regulations.
Related information
•
Driver support systems (p. 282)
•
Activating or deactivating Cross Traffic
Alert
•
•
•
•
Activating or deactivating Cross
Traffic Alert
*
98
The driver can choose to deactivate the Cross
Traffic Alert (CTA) function.
Activate or deactivate the
function using this button in
the center display's Function
view.
•
GREEN button indicator light – the func-
tion is activated.
•
GRAY button indicator light – the function
is deactivated.
The function is automatically activated each
time the engine is started.
Related information
•
•
•
96
Warning for crossing traffic when the vehicle is backing up.
97
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
366
Cross Traffic Alert
*
99
limitations
The Cross Traffic Alert (CTA) function with
auto brake
may have limited functionality in
certain situations. Auto-brake is active at
speeds under 15 km/h (9.3 mph).
WARNING
The
auto-brake
sub-function can only
detect and apply the brakes for other mov-
ing vehicles –
not
for e.g. stationary obsta-
cles, cyclists or pedestrians.
The function has certain limitations – the sen-
sors, for example, cannot "see" through other
parked vehicles or objects blocking the vehi-
cle.
Below are a few examples of situations in
which the function's field of vision may be ini-
tially limited and approaching vehicles may
therefore not be detected until they are very
close to your vehicle:
The vehicle is parked very far into a parking space.
In a diagonal parking space, Cross Traffic Alert may
be completely "blind" on one side of your vehicle.
Blind zone.
The function's field of vision.
However, as you back your vehicle slowly out
of a parking space, CTA's field of vision
changes in relation to the obstructing vehicle/
object and its blind zone is reduced.
Examples of further limitations
•
The
auto brake
subfunction only detects
vehicles in motion and may therefore
not
"see" and brake for e.g. stationary obsta-
cles, a cyclists or a pedestrian.
•
Dirt, ice and snow covering the sensors
may reduce functionality and prevent the
system from providing warnings.
•
CTA is automatically deactivated if a
trailer, bicycle holder or similar is con-
nected to the vehicle's electrical system.
•
For CTA to function effectively, bicycle
holders, luggage racks or similar should
not be mounted on the vehicle's towbar.
The function uses the vehicle's radar sen-
sors, which have certain general limita-
tions.
Related information
•
•
Camera/radar sensor limitations (p. 395)
98
Warning for crossing traffic when the vehicle is backing up.
99
Warning for crossing traffic when the vehicle is backing up.
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DRIVER SUPPORT
* Option/accessory.
367
Cross Traffic Alert
*
100
messages
A number of messages related to Cross
Traffic Alert (CTA) may be displayed in the
instrument panel. Several examples are provi-
ded below.
Message
Meaning
Blind spot sensor
Service required
The system is not functioning as intended. Contact a workshop
A
.
Blind spot system off
Trailer attached
BLIS
B
and CTA have been deactivated because a trailer has been connected to the vehicle's electrical system.
A
An authorized Volvo workshop is recommended.
B
Blind Spot Information System
A text message can be erased by briefly press-
ing the
button in the center of the right-
side steering wheel keypad.
If a message cannot be erased, contact a
workshop
A
.
Related information
•
•
•
100
Warning for crossing traffic when the vehicle is backing up.
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DRIVER SUPPORT
* Option/accessory.
368
Park Assist
*
The Park Assist function (PAS
101
) uses sen-
sors to help the driver when maneuvering in
tight spaces by indicating distances to obsta-
cles using audible signals and graphics in the
center display.
Display view showing obstacle zones and sensor
sectors.
The center display shows an overview of the
vehicle in relation to objects that have been
detected.
The marked sector indicates where the obsta-
cle is located. The closer the vehicle symbol is
to a marked sector forward/rearward, the
closer the detected obstacle is to your vehicle.
The side sectors change color as the distance
between the vehicle and an object decreases.
The audible signals will also speed up the
closer the obstacle is to the vehicle. The vol-
ume of the audio system will be automatically
lowered.
Audible signals for obstacles in front and to
the sides of the vehicle are active when the
vehicle is moving but will cease after the vehi-
cle has been stationary for approx. 2 seconds.
Audible signals for obstacles behind the vehi-
cle will remain active even when the vehicle is
stationary.
If a detected obstacle is within approx. 30 cm
(1 ft) from the front or rear of the vehicle, the
tone will become constant and the active sen-
sor field closest to the vehicle symbol will be
filled in.
At distances within approx. 25 cm (0.8 ft)
from an obstacle to the sides of the vehicle, an
rapid pulsing signal will be given and the
active sector fields will change color from
ORANGE to RED.
The volume of the Park Assist audible signals
can be adjusted while the signal is being given
using the
>II
knob or in the center display's
Top view under
Settings
.
Besides in the sector closest to the vehicle
symbol, audible warnings are only provided
for objects located directly in the vehicle's
path.
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and help make it safer – it cannot han-
dle all situations in all traffic, weather
and road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgment. The driver is always respon-
sible for ensuring the vehicle is driven
in a safe manner, at the appropriate
speed, with an appropriate distance to
other vehicles, and in accordance with
current traffic rules and regulations.
101
Park Assist System
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DRIVER SUPPORT
}}
* Option/accessory.
369
Related information
•
Driver support systems (p. 282)
•
Park Assist front, rear and sides
•
Activating or deactivating Park Assist
•
Park Assist symbols and messages
(p. 372)
•
Park Assist limitations (p. 371)
Park Assist front, rear and sides
*
Park Assist (PAS
102
) behaves differently
depending on which part of the vehicle is
approaching an obstacle.
Front camera
The warning signal has a continuous tone when the
obstacle is less than approx. 30 cm (1 ft) from the
vehicle.
The Park Assist system's front sensors are
automatically activated when the engine is
started. They are active at speeds
below 10 km/h (6 mph).
The distance monitored extends
approx. 80 cm (2.5 ft) in front of the vehicle.
The Park Assist system is deactivated
when the parking brake is used or when
P
is selected on vehicles with automatic
transmission.
When installing auxiliary lights: Make sure
these do not obscure the sensors – the
auxiliary lights could be perceived as an
obstacle.
Back
The warning signal has a continuous tone when the
obstacle is less than approx. 30 cm (1 ft) from the
vehicle.
102
Park Assist System
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||
DRIVER SUPPORT
* Option/accessory.
370
The rear sensors will be activated if the vehicle
begins rolling backward or if reverse gear is
engaged.
The distance monitored extends
approx. 1.5 meters (5 ft) behind the vehicle.
The Park Assist system's rear sensors will be
automatically deactivated if the vehicle is
backing up with a trailer connected to the
vehicle's electrical system.
When reversing with e.g. a trailer or bike
carrier on the trailer hitch – without Volvo
original trailer cables – the Parking Assist
system may have to be turned off manually
to prevent the sensors from reacting to
these.
Side sensors
The warning signal will begin pulsating rapidly when
the obstacle is less than approx. 25 cm (0.8 ft) from
the vehicle.
Park Assist's side sensors are automatically
activated when the engine is started. They are
active at speeds below 10 km/h (6 mph).
The distance monitored is approx. 25 cm
(0.8 ft) out from the sides.
The detection area of the side sensors increa-
ses significantly, however, when the steering
angle of the front wheel increases and
depending on the position of the steering
wheel, obstacles up to approx. 90 cm (3 ft)
diagonally behind or in front of the vehicle can
be detected.
Related information
•
•
Park Assist sensor field (p. 378)
Activating or deactivating Park
Assist
*
The Park Assist function (PAS
103
) can be acti-
vated or deactivated.
Park Assist's front and side sensors are auto-
matically activated when the engine is started.
The rear sensors are activated if the vehicle is
moving backward or reverse gear is engaged.
Activate or deactivate the
function using this button in
the center display's Function
view.
•
GREEN button indicator light – the func-
tion is activated.
•
GRAY button indicator light – the function
is deactivated.
In vehicles equipped with Park Assist Cam-
era
*
, Park Assist can also be activated or deac-
tivated from the relevant camera view.
Related information
•
•
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DRIVER SUPPORT
* Option/accessory.
371
Park Assist limitations
Park Assist (PAS
104
) may not be able to
detect all conditions in all situations and func-
tionality may therefore be limited in certain
cases.
The driver should be aware of the following
limitations for Park Assist:
WARNING
•
The parking sensors have dead/blind
spots where objects cannot be
detected.
•
Pay particular attention to people and
animals near the vehicle.
•
Bear in mind that the front end of the
vehicle may swing out towards oncom-
ing traffic during the parking maneuver.
WARNING
Be extra cautious when
reversing if this symbol is
shown when a trailer, bike
carrier or similar is
attached and electrically
connected to the vehicle.
The symbol indicates that
the rear parking assist sensors are
deacti-
vated
and will not warn of any obstacles.
Objects such as chains, thin and glossy
poles or low obstacles may end up in the
"signal shadow" and then go temporarily
undetected by the sensors – the pulsating
tone may then unexpectedly stop instead
of becoming a constant tone as expected.
The sensors cannot detect high objects,
such as protruding ramps.
•
In such situations, pay extra attention
and maneuver/drive the vehicle very
slowly or stop the current parking
maneuver – there may be a high risk of
damage to the vehicle or other objects
since information from the sensors is
not always reliable in such situations.
In some circumstances, the Park Assist
System may produce false warnings due to
external sound sources with the same
ultrasonic frequencies as those the system
works with.
Examples of such sources are horns, wet
tires on asphalt, pneumatic brakes, exhaust
noise from motorcycles, etc.
When a trailer hitch is configured with the
vehicle electrical system, the trailer hitch
protrusion is included when the function
measures the distance to objects behind
the vehicle.
Related information
•
103
Park Assist System
104
Park Assist System
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DRIVER SUPPORT
* Option/accessory.
372
Park Assist symbols and messages
Symbols and messages for the Park Assist
system (PAS
105
) may be displayed in the
instrument panel and/or the center display.
Several examples are provided below.
Symbol
Message
Meaning
The rear Park Assist sensors are
turned off
and no acoustic warnings for obstacles/
objects will be provided.
Park Assist System
Sensors blocked, cleaning needed
One or more of the sensors are blocked. Check and clean/remove the obstacle as soon as
possible.
Park Assist System
Unavailable Service required
The system is not functioning as intended. Contact a workshop
A
.
A
An authorized Volvo workshop is recommended.
A text message can be erased by briefly press-
ing the
button in the center of the right-
side steering wheel keypad.
If a message cannot be erased, contact a
workshop
A
.
Related information
•
•
Park Assist limitations (p. 371)
105
Park Assist System
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