Volvo V90 Recharge Plug-in Hybrid (2021 year). Manual in english — page 21

||

DRIVER SUPPORT

362

For this function to work, the following criteria
must be met:

•

your car must be travelling at more than
4 km/h (3 mph)

•

the road section must be straight

•

your car's lane must have clear lane mark-
ings

•

your car must be positioned straight in its
own lane

•

the oncoming vehicle must be within your
car's lane markings

•

the oncoming vehicle must have its head-
lamps switched on

•

this function can only handle "front to
front" collisions

•

this function can only detect vehicles with
four wheels.

WARNING

Warnings and brake interventions due to

an impending collision with an oncoming

vehicle always come very late.

Related information

•

City Safety

™

(p. 352)

•

Limitations of City Safety (p. 362)

Limitations of City Safety

The City Safety

95

function may have limita-

tions in certain situations.

Surroundings

Low objects

Low-hanging objects, e.g. a flag/pennant for
projecting load, or accessories such as auxili-
ary lamps and bull bars that are higher than
the bonnet limit the function.

Skidding

On slippery road surfaces the braking distance
is extended, which may reduce the capacity of
City Safety to avoid a collision. In such situa-
tions, the anti-lock brakes and the stability
control ESC

96

are designed to give the best

possible braking force with maintained stabil-
ity.

Oncoming light

The visual warning signal in the windscreen
may be difficult to notice in the event of strong
sunlight, reflections, when sunglasses are
being worn or if the driver is not looking
straight ahead.

Heat

In the event of high passenger compartment
temperature, caused by e.g. strong sunlight,
the visual warning signal in the windscreen
may be temporarily disengaged.

The camera and radar unit's field of view

The camera's field of vision is limited, which is
why pedestrians, large animals, cyclists and
vehicles in some situations cannot be
detected, or they are detected later than
anticipated.

Dirty vehicles may be detected later than oth-
ers and if it is dark, motorcycles may be
detected late or not at all.

If a text message in the driver display indicates
that the camera or radar unit is obstructed,
City Safety may be unable to detect pedes-
trians, large animals, cyclists, vehicles or road
lines ahead of the car. This means that the
functionality of City Safety may be reduced.

However, an error message is not shown in all
situations where the windscreen sensors are
obstructed. The driver must therefore take
care to keep the area of windscreen in front of
the camera and radar unit clear.

IMPORTANT

Maintenance of driver support components
must only be performed at a workshop –
an authorised Volvo workshop is recom-
mended.

95

The function is not available in all markets.

96

Electronic Stability Control

DRIVER SUPPORT

}}

}}

363

Driver intervention

Reversing

When your own car is reversing, City Safety is
temporarily deactivated.

Low speed

City Safety is not activated at very low speeds
- below 4 km/h (3 mph) - and the system
therefore does not intervene in situations
where your car is approaching a vehicle ahead
very slowly, e.g. when parking.

Active driver

Driver commands are always prioritised,
which is why City Safety does not intervene or
postpone warning/intervention in situations
where the driver is steering and accelerating in
a decisive manner, even if a collision is
unavoidable.

Active and aware driving behaviour can there-
fore delay a collision warning and intervention
in order to minimise unnecessary warnings.

Important warnings

WARNING

Driver supports only warn of obstacles

which their radar unit has detected –

hence a warning may not be given, or it

may be given with a certain delay.

•

Never wait for a warning or interven-
tion. Apply the brakes when the situa-
tion requires.

WARNING

•

Warnings and brake interventions
could be implemented late or not at all
if a traffic situation or external influ-
ences mean that the camera and radar
unit cannot detect pedestrians,
cyclists, large animals or vehicles cor-
rectly.

•

For vehicles to be detected at night,
their headlamps and rear lamp cluster
must be switched on and shining
clearly.

•

The camera and radar unit has a limited
range for pedestrians and cyclists. The
system can provide effective warnings
and brake interventions as long as the
relative speed is below 50 km/h
(30 mph). For stationary or slow-mov-
ing vehicles, warnings and brake inter-
ventions are effective at vehicle speeds
up to 70 km/h (43 mph). Speed reduc-
tion for large animals is less than 15
km/h (9 mph) and can be achieved at
vehicle speeds above 70 km/h
(43 mph). The warning and brake inter-
vention for large animals is less effec-
tive at lower speeds.

•

Warnings for stationary or slow-mov-
ing vehicles as well as large animals

||

DRIVER SUPPORT

364

may be disengaged due to darkness or
poor visibility.

•

Warnings and brake interventions for
pedestrians and cyclists are deacti-
vated at vehicle speeds exceeding
80 km/h (50 mph).

•

Do not place, stick or mount anything
on the outside or inside of the wind-
screen in front of or around the camera
and radar unit — this can interfere with
camera-dependent functions.

•

Objects, snow, ice or dirt in the area of
the camera sensor may reduce its func-
tionality, fully deactivate it or give
incorrect function response.

WARNING

•

The City Safety auto-brake function
can prevent a collision or reduce colli-
sion speed, but to ensure full brake
performance the driver should always
depress the brake pedal – even when
the car auto-brakes.

•

The warning and steering assistance
are only activated if there is a high risk
of collision – you must therefore never
wait for a collision warning or for City
Safety to intervene.

•

The warning and brake intervention for
pedestrians and cyclists are deacti-
vated at vehicle speeds exceeding
80 km/h (50 mph).

•

City Safety does not activates any
auto-brake functions in the event of
heavy acceleration.

NOTE

This function uses the car's camera and
radar units, which have certain general lim-
itations.

Market limitation

City Safety is not available in all countries. If
City Safety does not appear in the centre dis-

play's

Settings

menu, the car is not equipped

with this function.

Search path in the top view of the centre dis-
play:

•

Settings

My Car

IntelliSafe

Related information

•

City Safety

™

(p. 352)

•

Limitations for camera and radar unit
(p. 419)

DRIVER SUPPORT

365

Messages for City Safety

A number of messages regarding City Safety
can be shown in the driver display. Here are
some examples.

Message

Specification

City Safety

Automatic intervention

When City Safety brakes or has done an automatic braking, several of the driver display symbols may be
illuminated in connection with a text message being shown.

City Safety

Reduced functionality Service
required

The system does not function as it should. A workshop should be contacted

A

.

A

An authorised Volvo workshop is recommended.

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

•

City Safety

™

(p. 352)

DRIVER SUPPORT

* Option/accessory.

366

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.

NOTE

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. 290)

•

Activating or deactivating steering assis-
tance in the event of a collision risk
(p. 367)

•

Steering assistance upon risk of run-off
(p. 367)

•

Steering assistance upon risk of head-on
collision (p. 368)

•

Steering assistance upon risk of rear-end
collision

*

(p. 369)

•

Limitations for steering assistance at risk
of collision (p. 370)

•

Symbols and messages for steering assis-
tance upon risk of collision (p. 371)

DRIVER SUPPORT

}}

* Option/accessory.

367

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

97

.

NOTE

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. 366)

•

Limitations for steering assistance at risk
of collision (p. 370)

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

97

In certain markets, the setting used when the engine is switched off is reactivated.

||

DRIVER SUPPORT

368

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. 366)

•

Limitations for steering assistance at risk
of collision (p. 370)

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.

DRIVER SUPPORT

* Option/accessory.

369

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. 366)

•

Warning from driver support in the event
of a collision risk (p. 340)

•

Limitations for steering assistance at risk
of collision (p. 370)

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

98

function is activated. An acoustic

signal can also be heard.

Related information

•

Steering assistance at risk of collision
(p. 366)

•

BLIS

*

(p. 373)

•

Limitations for steering assistance at risk
of collision (p. 370)

98

Blind Spot Information

DRIVER SUPPORT

* Option/accessory.

370

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.

NOTE

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. 366)

•

Steering assistance upon risk of run-off
(p. 367)

•

Steering assistance upon risk of head-on
collision (p. 368)

•

Steering assistance upon risk of rear-end
collision

*

(p. 369)

DRIVER SUPPORT

371

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. 366)

•

Limitations for steering assistance at risk
of collision (p. 370)

DRIVER SUPPORT

* Option/accessory.

372

Rear Collision Warning

*

99

The Rear Collision Warning

100

(RCW) func-

tion 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. 290)

•

Limitations of Rear Collision Warning

*

(p. 372)

•

Whiplash Protection System (p. 47)

Limitations of Rear Collision

Warning

*

101

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.

NOTE

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.

NOTE

This function uses the car's camera and
radar units, which have certain general lim-
itations.

99

Rear collision warning.

100

The function is not available in all markets.

101

Rear collision warning.

DRIVER SUPPORT

}}

* Option/accessory.

373

Related information

•

Rear Collision Warning

*

(p. 372)

•

Setting the warning distance for City
Safety (p. 355)

•

Limitations for camera and radar unit
(p. 419)

BLIS

*

The BLIS

102

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.

102

Blind Spot Information

||

DRIVER SUPPORT

* Option/accessory.

374

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.

NOTE

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. 290)

•

Activating or deactivating BLIS (p. 374)

•

Limitations of BLIS (p. 375)

•

Messages for BLIS (p. 376)

Activating or deactivating BLIS

The BLIS

103

function can be activated or

deactivated.

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

•

BLIS

*

(p. 373)

•

Limitations of BLIS (p. 375)

103

Blind Spot Information

DRIVER SUPPORT

* Option/accessory.

375

Limitations of BLIS

The BLIS

104

function may have limitations in

certain situations.

Keep the surface indicated clean – on both the left
and right-hand sides of the car

105

.

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.

NOTE

This function uses the car's radar units,
which have certain general limitations.

Related information

•

BLIS

*

(p. 373)

•

Limitations for camera and radar unit
(p. 419)

104

Blind Spot Information

105

NOTE: The illustration is schematic - details may vary depending on car model.

DRIVER SUPPORT

* Option/accessory.

376

Messages for BLIS

A number of messages regarding BLIS

106

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

•

BLIS

*

(p. 373)

•

Cross Traffic Alert

*

(p. 381)

106

Blind Spot Information

DRIVER SUPPORT

}}

* Option/accessory.

377

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.