Volvo XC90 (2021 year). Manual in english - page 19

For vehicles without Adaptive Cruise Con-
trol

, speed instead increases by +/- 1km/h

(+/- 1 mph) each time the button is
pressed.

Pressing the accelerator pedal

If speed is increased by depressing the accel-
erator pedal while pressing the

(1) button

on the steering wheel, the vehicle's speed
when the button is pressed will be stored as
the set speed.

Temporarily increasing speed using the accel-
erator pedal, e.g. when passing another vehi-
cle, will not affect the setting. The vehicle will
return to the set speed when the accelerator
pedal is released.

Possible speed

Automatic transmission

The driver support functions can follow
another vehicle at speeds from a standstill up
to 200 km/h (125 mph).

Pilot Assist can provide steering assistance
from near-stationary speeds up to 140 km/h
(87 mph).

The lowest speed that can be set is 30 km/h
(20 mph). When following another vehicle,
ACC can monitor that vehicle's speed and
slow your own vehicle down to a standstill,
but it is not possible to set speeds lower than
30 km/h (20 mph).

Related information

•

•

Cruise control (p. 295)

•

Adaptive Cruise Control

(p. 298)

•

Pilot Assist

(p. 308)

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Setting time interval to the vehicle

ahead

The time interval to the vehicle ahead can be
set for the functions Adaptive Cruise Control

Pilot Assist

and Distance Alert

Different time intervals to the
vehicle ahead can be selected
and are shown in the instru-
ment panel as 1–5 horizontal
bars. The more bars, the
longer the time interval. One
bar represents an interval of

approx. 1 second to the vehicle ahead. 5 bars
represents approx. 3 seconds.

When the symbol in the instrument panel
shows a vehicle and a steering wheel, Pilot
Assist follows a vehicle ahead at a preset
time interval.

When only a steering wheel is shown,
there is no vehicle ahead within a reasona-
ble distance.

When the symbol in the instrument panel
shows two vehicles, Adaptive Cruise Con-
trol is following the vehicle ahead at a pre-
set time interval.

When only one vehicle is shown, there is
no vehicle ahead within a reasonable dis-
tance.

Controls for setting a time interval.

Reduce the time interval

Increase the time interval

Distance indicator

–

Press the (1) or (2) button to decrease or
increase the time interval.
> The distance indicator (3) shows the

current time interval.

In order to help your vehicle follow the vehicle
ahead as smoothly and comfortably as possi-
ble, Adaptive Cruise Control allows the time
interval to vary noticeably in certain situations.
At low speeds, when the distance to the vehi-
cle ahead is short, Adaptive Cruise Control
increases the time interval slightly.

Drive modes when using time interval to
vehicle (p. 327)

•

The greater the vehicles' speed, the
greater the distance between them for
a set time interval.

•

Only use the time intervals permitted
by local traffic regulations.

•

If driver support does not seem to
respond with a speed increase when
activated, it may be because the time
interval to the vehicle ahead is shorter
than the set time interval.

WARNING

•

Only use a time interval suitable for the
current traffic conditions.

•

The driver should be aware that short
time intervals give them limited time to
react and act to any unforeseen traffic
situation.

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Related information

•

•

Setting time interval to the vehicle ahead
(p. 326)

•

Adaptive Cruise Control

•

•

•

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. 425)

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.

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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.

Driver support can keep the vehicle sta-
tionary for no more than 5 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.

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. 5 minutes.

•

The brakes overheat.

•

The driver switches off the engine.

Related information

•

•

Adaptive Cruise Control

(p. 298)

•

Pilot Assist

(p. 308)

•

Brake functions (p. 409)

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.

A camera monitors the road/traffic lane's marker

lines.

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329

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.

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.

Lane Keeping Aid

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330

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. 330)

•

•

Lane Keeping Aid symbols and messages
(p. 332)

•

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

•

Selecting type of assistance for Lane
Keeping Aid (p. 331)

•

•

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331

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 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.

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

Related information

•

Speed-dependent steering wheel resis-
tance (p. 282)

•

•

Camera/radar sensor limitations (p. 395)

Lane Keeping Aid

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332

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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333

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 display (p. 334)

•

•

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334

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

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335

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

•

City Safety sub-functions (p. 336)

•

•

Setting a warning distance for City Safety
(p. 338)

•

Detecting obstacles with City Safety
(p. 339)

This function is not available on all markets.

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336

•

City Safety braking for oncoming vehicles
(p. 344)

•

Automatic braking during delayed evasive
maneuvers with City Safety (p. 343)

•

City Safety in crossing traffic (p. 341)

•

City Safety steering assistance for evasive
maneuver (p. 342)

•

City Safety limitations (p. 345)

•

City Safety messages (p. 348)

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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1 - Collision warning

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

In vehicles equipped with a head-up display

a flashing warning symbol will be displayed on
the windshield.

Collision warning symbol on the windshield

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.

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.

City Safety in crossing traffic (p. 341)

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.

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Related information

•

City Safety

™

(p. 335)

•

•

City Safety braking for oncoming vehicles
(p. 344)

•

City Safety limitations (p. 345)

•

Head-up display

(p. 146)

•

Seat belt tensioners (p. 52)

Setting a warning distance for City

Safety

City Safety

is always active, but the func-

tion's warning distance can be adjusted.