Volvo XC40 Recharge Plug-in Hybrid (2021 year). Manual in english — page 20
DRIVER SUPPORT
* Option/accessory.
347
Steering assistance at risk of
collision
The function
Collision avoidance
can help
the driver reduce the risk of the car leaving its
lane unintentionally and/or colliding with
another vehicle or obstacle by actively steer-
ing the car back into its lane and/or swerving.
The function consists of these subfunctions:
•
Steering assistance upon risk of run-off
•
Steering assistance upon risk of head-on
collision
•
Steering assistance upon risk of rear-end
collision
*
After automatic engagement, the driver dis-
play indicates that this has occurred via a text
message:
Collision avoidance
Automatic intervention
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and make it safer – it cannot handle all
situations in all traffic, weather and
road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgement. The driver is always
responsible for ensuring the car is
driven in a safe manner, at the appro-
priate speed, with an appropriate dis-
tance to other vehicles, and in accord-
ance with current traffic rules and reg-
ulations.
It is always the driver who decides how
much the car should steer – the car can
never take command.
Related information
•
Driving support systems (p. 274)
•
Activating or deactivating steering assis-
tance in the event of a collision risk
(p. 348)
•
Steering assistance upon risk of run-off
(p. 348)
•
Steering assistance upon risk of head-on
collision (p. 349)
•
Steering assistance upon risk of rear-end
collision
•
Limitations for steering assistance at risk
of collision (p. 351)
•
Symbols and messages for steering assis-
tance upon risk of collision (p. 352)
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DRIVER SUPPORT
* Option/accessory.
348
Activating or deactivating steering
assistance in the event of a
collision risk
The steering assistance function is optional –
the driver can choose to activate or deacti-
vate it.
Activate or deactivate the
function using this button in
the centre display's function
view.
•
GREEN button indication – the function is
activated.
•
GREY button indication – the function is
deactivated.
This function is activated automatically each
time the engine is started
93
.
When the
Collision avoidance
function is
deactivated, all subfunctions are switched
off:
•
Steering assistance at risk of road
departure
•
Steering assistance at risk of oncom-
ing collision
•
Steering assistance at risk of rear-end
collision
*
Even though it is possible to deactivate the
function, it is advisable for the driver to
always have it activated since it improves
driving safety in most cases.
Related information
•
Steering assistance at risk of collision
(p. 347)
•
Limitations for steering assistance at risk
of collision (p. 351)
Steering assistance upon risk of
run-off
Steering assistance has a number of subfunc-
tions. Steering assistance in the event of run-
off risk can help the driver and reduce the risk
of the car accidentally leaving the road by
actively steering the car back onto the road.
The function has two activation levels on inter-
vention:
•
Steering assistance only
•
Steering assistance with brake interven-
tion
Steering assistance only
Intervention with steering assistance
93
In certain markets, the setting used when the engine is switched off is reactivated.
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DRIVER SUPPORT
}}
349
Steering assistance with brake intervention
Intervention with steering assistance and braking
Brake intervention helps in situations where
steering assistance alone is not sufficient. The
brake force is adapted automatically depend-
ing on the situation at the time of road run-off.
The function is active within the speed range
65-140 km/h (40-87 mph) on roads with
clearly visible lane markings/lines.
A camera scans the edges of the road and the
painted side markings. If the car is about to
leave the side of the road, the car is steered
back onto the road and if the steering inter-
vention is not enough to avoid run-off, the
brakes are also activated.
However, the function does
not
intervene with
either steering assistance or brake interven-
tion if the direction indicators are used. And if
the function detects that the driver is actively
driving the car, activation of the function will
be delayed.
Related information
•
Steering assistance at risk of collision
(p. 347)
•
Limitations for steering assistance at risk
of collision (p. 351)
Steering assistance upon risk of
head-on collision
Steering assistance has a number of subfunc-
tions. Steering assistance upon risk of head-
on collision can help a distracted driver who
does not notice that the car is heading into
the opposite lane.
The function can assist by guiding the car back to its
own lane.
Oncoming vehicles
Your car
At the same time as steering intervention is
activated, collision warning for driver support
is also activated. However, the brake pulse
included in the collision warning will not be
activated.
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||
DRIVER SUPPORT
* Option/accessory.
350
The function is active within the speed range
60-140 km/h (37-87 mph) on roads with
clearly visible lane markings/lines.
If the car is about to leave its own lane while
an oncoming vehicle is approaching at the
same time, the function can help the driver to
steer the car back into its own lane.
However, the function does
not
intervene with
steering assistance if the direction indicator is
used. And if the function detects that the
driver is actively driving the car, activation of
the function will be delayed.
Related information
•
Steering assistance at risk of collision
(p. 347)
•
Warning from driver support in the event
of a collision risk (p. 322)
•
Limitations for steering assistance at risk
of collision (p. 351)
Steering assistance upon risk of
rear-end collision
*
Steering assistance has a number of subfunc-
tions. Steering assistance if there is a risk of
rear-end collision can help a distracted driver
who does not notice that the car is about to
leave its own lane while an oncoming vehicle
is approaching at the same time, either from
behind or in the blind spot.
The function can assist by steering the car back to its
own lane.
Other vehicle in the blind spot
Your car
If the car is about to leave its own lane while
another vehicle is in the blind spot, or another
vehicle is approaching rapidly in an adjacent
lane at the same time, the function can help
the driver to steer the car back into its own
lane.
The function can even assist if the driver inten-
tionally changes lanes using direction indica-
tors without noticing that another vehicle is
approaching.
The function is active within the speed range
60-140 km/h (37-87 mph) on roads with
clearly visible lane markings/lines.
The lamps in the door mirrors flash during
steering intervention, regardless of whether
the BLIS
94
function is activated. An acoustic
signal can also be heard.
Related information
•
Steering assistance at risk of collision
(p. 347)
•
•
Limitations for steering assistance at risk
of collision (p. 351)
94
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
351
Limitations for steering assistance
at risk of collision
In certain situations the function may have
limited functionality and fail to intervene in
the following cases, for example:
•
for small vehicles, such as motorcycles
•
if the majority of the car has steered into
the adjacent lane
•
on roads/in lanes with unclear or non-exis-
tent lane markings
•
outside the speed range 60-140 km/h
(37-87 mph)
•
as the steering servo for speed-dependent
steering wheel resistance is working at
reduced power – e.g. when cooling due to
overheating.
Other demanding situations can include:
•
road works
•
winter road conditions
•
narrow roads
•
poor road surface
•
a very “sporty” driving style
•
poor weather with reduced visibility.
In these demanding situations, the function
may have difficulty helping the driver correctly.
In such cases it is recommended to switch off
this function.
This function uses the car's camera and
radar units, which have certain general lim-
itations.
Related information
•
Steering assistance at risk of collision
(p. 347)
•
Steering assistance upon risk of run-off
(p. 348)
•
Steering assistance upon risk of head-on
collision (p. 349)
•
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DRIVER SUPPORT
352
Symbols and messages for
steering assistance upon risk of
collision
A number of symbols and messages regar-
ding steering assistance may be shown in the
driver display. Here are some examples.
Symbol
Message
Specification
Collision avoidance
Automatic intervention
When the function is activated, a message is shown to the driver indicating that the
system has been activated.
Windscreen sensor
Sensor blocked, see Owner's manual
The ability of the camera to scan the roadway in front of the car is reduced.
A text message can be cleared by briefly
pressing the
button, located in the centre
of the steering wheel's right-hand keypad.
If a message remains: Contact a workshop –
an authorised Volvo workshop is recom-
mended.
Related information
•
Steering assistance at risk of collision
(p. 347)
•
Limitations for steering assistance at risk
of collision (p. 351)
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DRIVER SUPPORT
}}
* Option/accessory.
353
Rear Collision Warning
*
95
The Rear Collision Warning
96
(RCW) function
can help the driver to avoid being hit by a
vehicle approaching from behind.
Drivers in vehicles behind can be warned
about an imminent collision by the function
flashing intensively with the direction indica-
tors.
If, at a speed below 30 km/h (20 mph), the
function detects that the car is in danger of
being hit from behind, the seatbelt tensioners
may tension the front seatbelts. The Whiplash
Protection System is also activated in the
event of a collision.
Immediately before a collision from behind,
this function may also activate the foot brake
in order to reduce the forward acceleration of
the car during the collision. However, the foot
brake is only activated if the car is stationary.
The foot brake releases immediately if the
accelerator pedal is depressed.
This function is activated automatically each
time the engine is started.
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and make it safer – it cannot handle all
situations in all traffic, weather and
road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgement. The driver is always
responsible for ensuring the car is
driven in a safe manner, at the appro-
priate speed, with an appropriate dis-
tance to other vehicles, and in accord-
ance with current traffic rules and reg-
ulations.
Related information
•
Driving support systems (p. 274)
•
Limitations of Rear Collision Warning
•
Whiplash Protection System (p. 45)
Limitations of Rear Collision
Warning
*
97
In certain cases the Rear Collision Warning
(RCW) may have difficulty helping the driver
in the event of a collision risk.
This can, for example, be if:
•
the vehicle approaching from behind is
detected too late
•
the vehicle approaching from behind
changes lane at the last moment
•
a trailer, bicycle rack or similar is con-
nected to the car's electrical system - the
function is then deactivated automatically.
In certain markets, RCW does
not
give a
warning with the direction indicators due
to local traffic regulations - in such cases,
this part of the function is deactivated.
This function uses the car's camera and
radar units, which have certain general lim-
itations.
95
Rear collision warning.
96
The function is not available in all markets.
97
Rear collision warning.
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||
DRIVER SUPPORT
* Option/accessory.
354
Related information
•
•
Setting the warning distance for City
Safety (p. 337)
•
Limitations for camera and radar unit
(p. 399)
BLIS
*
The BLIS
98
function is intended to help the
driver detect vehicles diagonally behind and
to the side of the car so as to provide assis-
tance in heavy traffic on roads with several
lanes in the same direction.
Location of BLIS lamp
BLIS is a driver aid intended to give a warning
of:
•
vehicles in the car's blind spot
•
quickly approaching vehicles in the left
and right lanes closest to the car.
Principle of BLIS
Zone in blind spot
Zone for quickly approaching vehicle
The system is designed to react when:
•
your car is overtaken by other vehicles
•
another vehicle is quickly approaching
your car.
When BLIS detects a vehicle in Zone 1 or a
quickly approaching vehicle in Zone 2, the
indicator lamp on the door mirror on the affec-
ted side illuminates with a constant glow. If
the driver activates the direction indicator on
the same side as the warning, the indicator
lamp will change over from a constant glow to
flashing with a more intense light.
98
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
355
BLIS is active when the driver's vehicle is trav-
elling at a speed above 10 km/h (6 mph).
If passing vehicles drive more than 15 km/h
(9 mph) faster than the driver's vehicle, BLIS
will not react.
The lamp illuminates on the side of the car
where the system has detected the vehicle.
If the car is overtaken on both sides at the
same time then both lamps illuminate.
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and make it safer – it cannot handle all
situations in all traffic, weather and
road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgement. The driver is always
responsible for ensuring the car is
driven in a safe manner, at the appro-
priate speed, with an appropriate dis-
tance to other vehicles, and in accord-
ance with current traffic rules and reg-
ulations.
Related information
•
Driving support systems (p. 274)
•
Activating or deactivating BLIS (p. 355)
•
•
Activating or deactivating BLIS
The BLIS
99
function can be activated or deac-
tivated.
Activate or deactivate the
function using this button in
the centre display's function
view.
•
GREEN button indication – the function is
activated.
•
GREY button indication – the function is
deactivated.
If BLIS is activated when starting the engine,
the function is confirmed by the door mirror
indicator lamps blinking once.
If BLIS was deactivated when the engine was
switched off, it will continue to be deactivated
when the engine is next started and no indica-
tor lights will then be illuminated.
Related information
•
•
99
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
356
Limitations of BLIS
The BLIS
100
function may have limitations in
certain situations.
Keep the surface indicated clean – on both the left
and right-hand sides of the car
101
.
Examples of limitations:
•
Dirt, ice and snow covering the sensors
may reduce the functions and deactivate
alerts.
•
The BLIS function is automatically deacti-
vated if a trailer, bicycle rack or similar is
connected to the car's electrical system.
•
For good performance of BLIS, there
should be no bicycle rack, luggage carrier
or similar mounted on the car's towbar.
WARNING
•
BLIS does not work on sharp bends.
•
BLIS does not work when the car is
reversing.
This function uses the car's radar units,
which have certain general limitations.
Related information
•
•
Limitations for camera and radar unit
(p. 399)
100
Blind Spot Information
101
NOTE: The illustration is schematic - details may vary depending on car model.
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DRIVER SUPPORT
* Option/accessory.
357
Messages for BLIS
A number of messages regarding BLIS
102
can
be shown in the driver display. Here are some
examples.
Message
Specification
Blind spot sensor
Service required
The system does not function as it should. A workshop should be contacted
A
.
Blind spot system off
Trailer attached
BLIS and CTA
B
have been deactivated as a trailer has been connected to the car's electrical system.
A
An authorised Volvo workshop is recommended.
B
Cross Traffic Alert
*
A text message can be cleared by briefly
pressing the
button, located in the centre
of the steering wheel's right-hand keypad.
If a message persists, contact a workshop
A
.
Related information
•
•
102
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
358
Driver Alert Control
The Driver Alert Control (DAC) function is
intended to help make the driver aware that
he or she is starting to drive less consistently,
e.g. if the driver becomes distracted or starts
to fall asleep.
The objective for the function is to detect
slowly deteriorating driving ability and it is pri-
marily intended for major roads. The function
is not intended for city traffic.
The function is activated when speed exceeds
65 km/h (40 mph) and remains active as long
as the speed is over 60 km/h (37 mph).
Driver Alert Control reads the position of the car in
the lane.
A camera detects the edge markings painted
on the carriageway and compares the align-
ment of the road with the driver’s steering
wheel movements.
The car is being driven erratically in the lane.
If driving behaviour becomes
noticeably inconsistent, the
driver is alerted by this sym-
bol in the driver display, com-
bined with an acoustic signal
and the text message
Time
to take a break
.
If the car is equipped with Sensus Navigation
*
and has the function
Rest Stop Guidance
activated, suggestions for an appropriate
place for a break are also displayed.
The warning is repeated after a time if driving
behaviour has not improved.
WARNING
Driver Alert Control should not be used to
extend a period of driving. The driver
should instead plan for breaks at regular
intervals and make sure they are well
rested.
WARNING
An alarm from Driver Alert Control should
be taken very seriously, as a sleepy driver is
often not aware of his/her own condition.
If the alarm sounds or you feel fatigued:
•
Stop the car safely as soon as possible
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.
359
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and make it safer – it cannot handle all
situations in all traffic, weather and
road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgement. The driver is always
responsible for ensuring the car is
driven in a safe manner, at the appro-
priate speed, with an appropriate dis-
tance to other vehicles, and in accord-
ance with current traffic rules and reg-
ulations.
Related information
•
Driving support systems (p. 274)
•
Activating or deactivating Driver Alert
Control (p. 359)
•
Select rest stop guidance in the event of a
warning from Driver Alert Control (p. 359)
•
Limitations of Driver Alert Control
(p. 360)
Activating or deactivating Driver
Alert Control
The Driver Alert Control (DAC) function can
be activated or deactivated.
1. Tap on
Settings
in the centre display's
top view.
2. Select
My Car
IntelliSafe
Driver
Alert
.
3. Select or deselect
Alertness Warning
to
activate or deactivate the function.
Related information
•
•
Limitations of Driver Alert Control
(p. 360)
Select rest stop guidance in the
event of a warning from Driver
Alert Control
In cars equipped with Sensus Navigation
*
,
the driver can activate a guide that can auto-
matically suggest an appropriate rest area
when Driver Alert Control (DAC) issues a
warning.
It is possible to select whether the
Rest Stop
Guidance
function should be activated or
deactivated.
1. Tap on
Settings
in the centre display's
top view.
2. Select
My Car
IntelliSafe
Driver
Alert
.
3. Select or deselect
Rest Stop Guidance
to activate or deactivate the function.
Related information
•
•
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DRIVER SUPPORT
* Option/accessory.
360
Limitations of Driver Alert Control
The Driver Alert Control (DAC) function may
have limitations in certain situations.
In some cases the system may issue a warn-
ing despite driving ability not deteriorating, for
example:
•
in strong side winds
•
on rutted road surfaces.
WARNING
In some cases, driving behaviour is not
affected despite driver fatigue – e.g. when
using the Pilot Assist
*
function – resulting
in the driver not getting a warning from
DAC.
It is therefore important to always stop and
take a break at the slightest feeling of fati-
gue, regardless of whether the function has
given a warning.
This function uses the car's camera and
radar units, which have certain general lim-
itations.
Related information
•
•
Limitations for camera and radar unit
(p. 399)
Cross Traffic Alert
*
103
Cross Traffic Alert (CTA) is a driver support
that supplements BLIS
104
and is designed to
help the driver detect traffic crossing behind
the car when it is reversing.
The
auto-brake
subfunction can help the
driver to stop the car in the event of a risk of
collision with an unobserved vehicle.
Examples of areas where Cross Traffic Alert can
assist the driver to detect obstacles during reversing.
The function is primarily designed to detect
vehicles. In favourable conditions it may also
be able to detect smaller objects, such as
cyclists and pedestrians.
The function is only active if the car rolls back-
wards or if reverse gear has been selected.
If the function senses that something is
approaching from the side, this is indicated
with:
•
an acoustic signal - the sound is heard in
the left-hand or right-hand speaker
according to the direction from which the
object approaches.
•
an illuminated icon in the
Park Assist
System
graphic on the screen.
•
an icon on the Park assist camera top
view.
Illuminated icon for Cross Traffic Alert in the
Park
Assist System
graphic on the screen.
If the driver does not observe the warning
from the function and a collision is unavoida-
ble, the
auto-brake
function engages in order
to stop the car, after which the driver display
103
Cross traffic alert when the car is reversing.
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DRIVER SUPPORT
* Option/accessory.
361
shows an explanatory text message on why
the car was braked.
WARNING
•
The function is supplementary driver
support intended to facilitate driving
and make it safer – it cannot handle all
situations in all traffic, weather and
road conditions.
•
•
Driver support functions are not a sub-
stitute for the driver's attention and
judgement. The driver is always
responsible for ensuring the car is
driven in a safe manner, at the appro-
priate speed, with an appropriate dis-
tance to other vehicles, and in accord-
ance with current traffic rules and reg-
ulations.
Related information
•
Driving support systems (p. 274)
•
Activating or deactivating Cross Traffic
Alert
•
Limitations of Cross Traffic Alert
•
Messages for Cross Traffic Alert
•
•
Activating or deactivating Cross
Traffic Alert
*
105
The driver can choose to switch off the Cross
Traffic Alert (CTA) function.
Activate or deactivate the
function using this button in
the centre display's function
view.
•
GREEN button indication – the function is
activated.
•
GREY button indication – the function is
deactivated.
The function is activated automatically each
time the engine is started.
Related information
•
•
Limitations of Cross Traffic Alert
•
Messages for Cross Traffic Alert
104
Blind Spot Information
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DRIVER SUPPORT
* Option/accessory.
362
Limitations of Cross Traffic
Alert
*
106
The Cross Traffic Alert (CTA) function with
auto-brake
may have limited functionality in
certain situations. Brake intervention is active
at speeds below 15 km/h.
WARNING
The
auto-brake
subfunction can only
detect and brake for other vehicles that are
moving –
not
for stationary obstacles, a
cyclist or a pedestrian, for example.
The function has a certain limitation – the sen-
sors cannot "see" through other parked vehi-
cles or obstructions, for example.
Here are some examples of situations where
the function's "field of vision" may be already
limited and approaching vehicles cannot
therefore be detected until they are very close:
The car is parked deep inside a parking slot.
In an angled parking slot Cross Traffic Alert may be
completely “blind” on one side.
Blind sector.
Sector in which the function can
detect/"see".
However, as your car slowly reverses, the
angle it makes with the obstructing vehicle/
object changes and the blind sector rapidly
decreases.
105
Cross traffic alert when the car is reversing.
106
Cross traffic alert when the car is reversing.
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