Volvo XC40 (2021 year). Manual in english — page 17

Setting time interval to the vehicle ahead
(p. 295)

•

Adaptive Cruise Control

(p. 270)

•

Pilot Assist

(p. 280)

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DRIVER SUPPORT

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* Option/accessory.

297

Drive modes when using time

interval to vehicle

The driver can choose different drive modes
to determine how driver support should
maintain a time interval to the vehicle ahead.

Settings are made using the

DRIVE MODE

controls.

Select one of the following:

•

Eco

- Driver support will focus on provid-

ing good fuel economy, which will
increase the time interval to the vehicle
ahead.

•

Comfort

- Driver support will focus on fol-

lowing the set time interval to the vehicle
ahead as smoothly as possible.

•

Dynamic

- Driver support will focus on

following the set time interval to the vehi-
cle ahead more exactly, which could mean
faster acceleration and heavier braking.

Related information

•

•

•

Drive modes

(p. 389)

Auto-hold braking with driver

support

The driver support functions Adaptive Cruise
Control

and Pilot Assist

have a special brake

function in slow traffic and while stationary.
In certain situations, the parking brake will be
applied to keep the vehicle at a standstill.

Braking function in slow traffic and at
a standstill

In slow-moving, stop-and-go traffic or when
stopped at a traffic light, driving will resume
automatically if the vehicle is stopped for less
than approx. 3 seconds. If it takes more than 3
seconds for the vehicle ahead to begin moving
again, the driver support function will go into
standby mode and the auto-hold brake func-
tion will activate.

–

The function can be reactivated by:

•

Pressing the

button on the steer-

ing wheel keypad.

•

Pressing the accelerator pedal.

> The function will resume following the

vehicle ahead if it begins to move
within approx. 6 seconds.

WARNING

A noticeable increase in speed may follow
when the speed is resumed with the

steering wheel button.

WARNING

The driver support system only issues a

warning for obstacles detected by its radar

sensor – thus, a warning may come after a

delay or not at all.

•

Never wait for a warning or assistance.
Apply the brakes when necessary.

NOTE

Driver support can keep the vehicle sta-
tionary for no more than 10 minutes – after
that time the parking brake is applied and
the function is deactivated.

The parking brake must be released before
driver support can be reactivated.

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DRIVER SUPPORT

* Option/accessory.

298

Deactivation of the Auto-hold brake
function

In certain situations, auto-hold will be deacti-
vated when the vehicle is at a standstill and
the function will go into standby mode. This
means that the brakes will be released and the
vehicle could begin to roll. The driver must
actively apply the brakes to keep the vehicle
stationary.

This can occur if:

•

The driver depresses the brake pedal.

•

The parking brake is applied.

•

The gear selector is moved to the

position.

•

The driver puts Adaptive Cruise Control or
Pilot Assist in standby mode.

Auto Activate Parking Brake

The parking brake will be applied if the func-
tion is keeping the vehicle stationary using the
brakes and:

•

The driver opens the door or unbuckles
his/her seat belt.

•

The function has kept the vehicle at a
standstill for more than
approx. 10 minutes.

•

The brakes overheat.

•

The driver switches off the engine.

Related information

•

•

Adaptive Cruise Control

(p. 270)

•

Pilot Assist

(p. 280)

•

Brake functions (p. 374)

Lane Keeping Aid

Lane Keeping Aid (LKA

) is designed to

actively steer the vehicle on freeways, high-
ways and other major roads to help the driver
reduce the risk of the vehicle unintentionally
veering out of the lane.

Lake Keeping Aid steers the vehicle back into
the lane and/or alerts the driver using vibra-
tions in the steering wheel.

Lane Keeping Aid is active at speeds between
65–200 km/h (40–125 mph) on roads with
clearly visible traffic lane marker lines.

On narrow roads, the function may be unavail-
able and go into standby mode. The function
will become available again when the road
becomes sufficiently wide.

Lane Keeping Aid

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DRIVER SUPPORT

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299

A camera monitors the road/traffic lane's marker

lines.

Lane Keeping Aid steers the vehicle back into its

lane.

Lane Keeping Aid alerts the driver using vibrations in

the steering wheel.

Depending on the settings used, Lane Keep-
ing Aid functions in different ways:

•

Assist

enabled: When the vehicle

approaches a lane marker line, the func-
tion will actively steer the vehicle back into
the lane using light pressure on the steer-
ing wheel.

•

Warning

enabled: If the vehicle is about

to move over a lane marker line, the driver
will be alerted by vibrations in the steering
wheel.

There is also an option for activating steering
assistance and alerts at the same time.

NOTE

When the direction indicators/turn signals
are activated, the Lane Keeping Aid does
not provide any warning or intervene with
steering.

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.

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DRIVER SUPPORT

300

Lane Keeping Aid does not intervene

Lane Keeping Aid does not intervene in sharp inside

curves.

In certain cases, such as when a turn signal is
used or when "straightening out" an inside
curve, Lane Keeping Aid will not provide steer-
ing assistance or alerts.

Hands on the steering wheel

Steering assistance with Lane Keeping Aid
only functions if the driver's hands are on the
steering wheel, which the system continu-
ously monitors.

If the driver's hands are not
on the steering wheel, an
audible signal will be given
and a message will instruct
the driver to actively steer the
vehicle:

•

Lane Keeping Aid

–

Apply steering

If the driver does not begin to steer the vehi-
cle, the function will go into standby mode
and this message will be displayed:

•

Lane Keeping Aid

–

Standby until

steering applied

The function will then be unavailable until the
driver begins actively steering the vehicle
again.

Related information

•

Activating or deactivating Lane Keeping
Aid (p. 300)

•

•

Lane Keeping Aid limitations (p. 301)

•

Lane Keeping Aid symbols and messages
(p. 302)

Activating or deactivating Lane

Keeping Aid

The Lane Keeping Aid (LKA

) function is

optional – the driver can choose to have the
function activated or deactivated.

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.

Related information

•

Lane Keeping Aid (p. 298)

•

Selecting type of assistance for Lane
Keeping Aid (p. 301)

•

Lane Keeping Aid limitations (p. 301)

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DRIVER SUPPORT

301

Selecting type of assistance for

Lane Keeping Aid

The driver can determine what types of assis-
tance Lane Keeping Aid (LKA

) should pro-

vide if the vehicle veers from its lane.

1. Select

Settings

My Car

IntelliSafe

in the center display's Top view.

2. Under

Lane Keeping Aid Mode

, select

what assistance the function should pro-
vide:

•

Assist

the driver will receive steering

assistance but no warning.

•

Warning

– the driver is only warned

through vibrations in the steering
wheel.

•

Both

– the driver receives steering

assistance and a warning through
vibrations in the steering wheel.

Related information

•

Lane Keeping Aid (p. 298)

Lane Keeping Aid limitations

In certain demanding driving conditions, Lane
Keeping Aid (LKA

) may not be able to prop-

erly assist the driver. In these situations, it is
recommended that the function be deacti-
vated.

Examples of such situations include:

•

road work

•

winter driving conditions

•

poor road surfaces

•

a very sporty driving style

•

bad weather with reduced visibility

•

roads with indistinct or no lane markings

•

sharp edges or lines other than the lane's
side markings

•

when speed-dependent power steering
wheel resistance is working at reduced
power – e.g. during cooling due to over-
heating.

The function cannot detect barriers, railings or
similar obstacles at the side of the lane.

NOTE

The function uses the vehicle's camera and
radar sensor, which has certain general
limitations.

Related information

•

Lane Keeping Aid (p. 298)

•

Speed-dependent steering wheel resis-
tance (p. 254)

•

Camera/radar sensor limitations (p. 362)

Lane Keeping Aid

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DRIVER SUPPORT

302

Lane Keeping Aid symbols and

messages

A number of symbols and messages related
to Lane Keeping Aid (LKA

) may be dis-

played in the instrument panel. Several exam-
ples are provided below.

Symbol

Message

Meaning

Driver support system

Reduced functionality Service required

The system is not functioning as intended. Contact a workshop

Windscreen sensor

Sensor blocked, see Owner's manual

The camera's ability to detect the lane in front of the vehicle is reduced.

Lane Keeping Aid

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DRIVER SUPPORT

303

Symbol

Message

Meaning

Lane Keeping Aid

Apply steering

LKA's steering assistance is disabled when the driver's hands are not on the wheel.
Follow the instructions and steer the vehicle.

Lane Keeping Aid

Standby until steering applied

LKA will go into standby mode until the driver begins steering the vehicle again.

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

Related information

•

Lane Keeping Aid (p. 298)

•

Lane Keeping Aid display (p. 304)

•

Lane Keeping Aid limitations (p. 301)

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DRIVER SUPPORT

304

Lane Keeping Aid display

Lane Keeping Aid (LKA

) uses symbols in

the instrument panel for various situations.

Some examples of symbols
and descriptions of the situa-
tions in which they might
appear are provided below.

Available

‒

the marker lines in the symbol are

WHITE.

Lane Keeping Aid is able to detect one or both
of the traffic lane's side marker lines.

Unavailable

‒

the marker lines in the symbol are

GRAY.

Lane Keeping Aid is unable to detect the lane
marker lines, the vehicle's speed is too low or
the road is too narrow.

Steering/warning indicator

Steering/warning

‒

the marker lines in the symbol

are COLORED.

Indicates that the Lane Keeping Aid system is
alerting the driver and/or attempting to steer
the vehicle back into the lane.

Related information

•

Lane Keeping Aid (p. 298)

•

Lane Keeping Aid limitations (p. 301)

Lane Keeping Aid

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305

City Safety

™

City Safety

can alert the driver with light,

sound and pulsations in the brake pedal to
help the driver detect pedestrians, cyclists,
large animals and vehicles.

Function overview

Audible signal at risk of collision

Collision warning symbol

Camera/radar sensor distance monitoring

The function can help the driver avoid a colli-
sion in e.g. stop-and-go traffic, when changes
in the traffic ahead and driver distraction could
lead to an incident. City Safety activates a
brief, forceful braking in an attempt to stop
your vehicle immediately behind the vehicle or
object ahead.

The function assists the driver by automati-
cally applying the brakes if there is an immi-
nent risk of a collision and the driver does not
react in time by braking and/or steering away.

City Safety is activated in situations in which
the driver should have applied the brakes
much earlier, which means that the system
will not be able to assist the driver in all situa-
tions. The function is designed to be activated
as late as possible to help avoid unnecessary
intervention. Automatic braking will only be
applied after or during a collision warning.

Normally, the occupants of the vehicle will not
be aware of City Safety except when the sys-
tem intervenes when a collision is imminent.

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.

•

Related information

•

Driver support systems (p. 254)

•

City Safety sub-functions (p. 306)

•

Setting a warning distance for City Safety
(p. 308)

•

Detecting obstacles with City Safety
(p. 309)

This function is not available on all markets.

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DRIVER SUPPORT

306

•

City Safety braking for oncoming vehicles
(p. 313)

•

Automatic braking during delayed evasive
maneuvers with City Safety (p. 312)

•

City Safety in crossing traffic (p. 311)

•

City Safety messages (p. 317)

•

City Safety sub-functions

City Safety

can help prevent a collision or

lower the vehicle's speed at the point of
impact. The function consists of several sub-
functions.

Ability to reduce speed

If the difference in speed between your vehicle
and the obstacle is greater than the speeds
specified below, the City Safety auto-brake
function cannot prevent a collision, but it can
help mitigate its effects.

Vehicles

City Safety can help prevent a collision with a
vehicle ahead by reducing your vehicle's speed
by up to 60 km/h (37 mph).

Cyclists

City Safety can help prevent a collision with a
cyclist ahead by reducing your vehicle's speed
by up to 50 km/h (30 mph).

Pedestrians

City Safety can help prevent a collision with a
pedestrian ahead by reducing your vehicle's
speed by up to 45 km/h (28 mph).

Large animals

If there is a risk of colliding with a large ani-
mal, City Safety can help reduce your vehicle's
speed by up to 15 km/h (9 mph).

The braking function for large animals is pri-
marily intended to mitigate the force of a colli-
sion at higher speeds. Braking is most effec-
tive at speeds above 70 km/h (43 mph) and
less effective at lower speeds.

City Safety steps

City Safety carries out three steps in the fol-
lowing order:

1. Collision warning
2. Brake assistance
3. Auto-brake

This function is not available on all markets.

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307

1 - Collision warning

The driver is first alerted to the risk of an immi-
nent collision.

City Safety can detect pedestrians, cyclists or
vehicles that are stationary, are moving in the
same direction as your vehicle and are ahead
of your vehicle. City Safety can also detect
pedestrians, cyclists or large animals that are
crossing the road in front of your vehicle.

If there is a risk of a collision with a pedestrian,
large animal, cyclist or another vehicle, the
driver will be alerted with light, sound and pul-
sations in the brake pedal. At lower speeds,
during hard braking or if the accelerator pedal
is pressed, the brake pedal pulsation warning
will not be given. The intensity of the brake
pedal pulsations varies according to the vehi-
cle's speed.

2 - Brake assistance

If the risk of a collision increases after the colli-
sion warning, brake support will be activated.

If the system determines that the pressure the
driver is exerting on the brake pedal is insuffi-
cient to prevent the collision, brake support
will increase pressure.

3 - Auto-brake

The automatic braking function is activated at
the last moment.

If the driver has not taken evasive action by
this stage and a collision is imminent, the

automatic braking function will be triggered.
This occurs whether or not the driver is press-
ing the brake pedal. Full braking force will be
applied to reduce the speed at impact or
reduced braking effect will be applied if this is
sufficient to avoid the collision.

The seat belt tensioner may be activated when
the automatic braking function is triggered.

In certain situations, auto-braking may begin
with a limited braking force before applying
full braking force.

If City Safety has prevented a collision, the
vehicle will be kept at a standstill until the
driver takes action. If the vehicle has slowed to
avoid colliding with a slower-moving vehicle
ahead, your speed will be reduced to that vehi-
cle's speed.

Auto-braking can always be cancelled if the
driver presses hard on the accelerator pedal.

NOTE

When City Safety activates the brakes, the
brake lights come on.

When City Safety applies the brakes, a text
message will appear in the instrument panel
to notify the driver that the function is/was
activated.

WARNING

City Safety may not be used to change

how the driver operates the vehicle. The

driver must not only rely on City Safety to

brake the vehicle.

Related information

•

City Safety in crossing traffic (p. 311)

•

•

City Safety braking for oncoming vehicles
(p. 313)

•

Seat belt tensioners (p. 52)

•

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DRIVER SUPPORT

* Option/accessory.

308

Setting a warning distance for City

Safety

City Safety

is always active, but the func-

tion's warning distance can be adjusted.

NOTE

The City Safety function cannot be deacti-
vated. It is activated automatically each
time the engine/electric motor is started.

The alert distance determines the sensitivity of
the system and regulates the distance at
which the light, sound and brake pulsations
will be activated.

To select warning distance:

1. Select

Settings

My Car

IntelliSafe

in the center display's Top view.

2. Under

City Safety Warning

, tap

Late

Normal

Early

to set the desired warn-

ing distance.

If the driver feels that the

Early

setting is giv-

ing too many warnings or finds them irritating,
the

Normal

Late

warning distance settings

can be selected instead.

If the driver feels that the warnings are too fre-
quent and distracting, the warning distance
can be reduced. This will reduce the total

number of warnings, but it will also result in
City Safety providing warnings at a later stage.

The

Late

warning distance setting should

therefore only be used in exceptional cases,
such as when a more dynamic driving style is
preferred.

WARNING

•

No automatic system can guarantee
100% correct function in all situations.
You should therefore never test use of
City Safety in the direction of people,
animals or vehicles – this could lead to
severe damage, serious personal injury
or even death.

•

City Safety warns the driver if there is a
risk of collision, but the function cannot
reduce the driver's reaction time.

•

Even if the warning distance has been
set to

Early

, warnings may be per-

ceived as late in certain situations –
e.g. when there are large speed differ-
ences or if the vehicle ahead suddenly
brakes heavily.

•

With the warning distance set to

Early

warnings come further in advance. This
may cause the warnings to come more
frequently than with warning distance

Normal

, but is recommended since it

can make City Safety more effective.

Related information

•

•

•

Rear Collision Warning

(p. 324)

This function is not available on all markets.

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309

Detecting obstacles with City

Safety

City Safety

can help the driver detect other

vehicles, cyclists, large animals and pedes-
trians.

Vehicles

City Safety can detect most vehicles that are
stationary or are moving in the same direction
as your vehicle. In some cases, it can also
detect oncoming vehicles and crossing traffic.

For City Safety to be able to detect a vehicle in
the dark, its headlights and taillights must be
on and clearly visible.

Cyclists

Examples of what City Safety would interpret to be a

cyclist: clear body and bicycle shapes.

For good performance, the system's function
for cyclist detection needs the clearest possi-
ble information about the contours of the bicy-
cle and of the cyclist's head, arm, shoulders,
legs, torso and lower body in combination
with normal human movements.

If large portions of the cyclist's body or the
bicycle itself are not visible to the function's
camera, it will not be able to detect a cyclist.

The system can only detect adult cyclists rid-
ing on bicycles intended for adults.

WARNING

City Safety is supplementary driver sup-

port, but it cannot detect all cyclists in all

situations and, for example, cannot see:

•

partially obscured cyclists.

•

cyclists if the contrast to the cyclist's
background is poor.

•

cyclists in clothing that hides their
body contour.

•

bikes loaded with large objects.

Warnings and brake interventions may

occur late or not at all. The driver is always

responsible for ensuring that the vehicle is

driven correctly and with a safety distance

suitable for the speed.

Pedestrians

Examples of what the system considers to be a

pedestrian: clear body contours.

For good performance, the system's function
for pedestrian detection needs the clearest
possible information about the contours of the
pedestrian's head, arm, shoulders, legs, torso
and lower body in combination with normal
human movements.

In order to detect a pedestrian, there must be
a contrast to the background, which could
depend on clothing, weather conditions, etc. If
there is little contrast, the person may be
detected late or not at all, which may result in
a delayed reaction from the system or no reac-
tion at all.

This function is not available on all markets.

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310

City Safety can detect pedestrians even in
dark conditions if they are illuminated by the
vehicle's headlights.

WARNING

City Safety is supplementary driver sup-

port, but it cannot detect all pedestrians in

all situations and, for example, cannot see:

•

partially obscured pedestrians, people
in clothing that hides their body con-
tour or pedestrians shorter than 80 cm
(32 in.).

•

pedestrians if the contrast to the
pedestrian's background is poor.

•

pedestrians who are carrying large
objects.

Warnings and brake interventions may

occur late or not at all. The driver is always

responsible for ensuring that the vehicle is

driven correctly and with a safety distance

suitable for the speed.

Large animals

Examples of what City Safety would interpret as a

large animal: stationary or moving slowly and with

clear body contours.

For good performance, the system's function
for detecting large animals (e.g. moose,
horses, etc.) needs the clearest possible infor-
mation about body contours. This entails
being able to detect the animal straight from
the side in combination with normal move-
ments for that animal.

If parts of the animal's body are not visible to
the function's camera, the system will not be
able to detect the animal.

City Safety can detect large animals even in
dark conditions if they are illuminated by the
vehicle's headlights.

WARNING

City Safety is supplementary driver sup-

port, but it cannot detect all large animals

in all situations and, for example, cannot

see:

•

partially obscured larger animals.

•

larger animals seen from the front or
from behind.

•

running or fast moving larger animals.

•

larger animals if the contrast to the ani-
mal's background is poor.

•

smaller animals such as cats and dogs.

Warnings and brake interventions may

occur late or not at all. The driver is always

responsible for ensuring that the vehicle is

driven correctly and with a safety distance

suitable for the speed.

Related information

•

•

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DRIVER SUPPORT

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311

City Safety in crossing traffic

City Safety

can assist the driver when turn-

ing into the path of an oncoming vehicle in an
intersection.

Sector in which City Safety can detect an
oncoming vehicle in crossing traffic.

In order for City Safety to detect an oncoming
vehicle in situations where there is a risk of a
collision, that vehicle must be within the sec-
tor in which City Safety can analyze the situa-
tion.

The following criteria must also be met:

•

your vehicle's speed must be at least
4 km/h (3 mph)

•

your vehicle must be making a left turn

•

the oncoming vehicle's headlights must
be on

Related information

•

•