Volvo XC90 (2021 year). Manual in english - page 20

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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

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•

This function is not available on all markets.

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Limitations of City Safety in

crossing traffic

In certain situations, it may be difficult for
City Safety to help the driver avoid a collision
with crossing traffic.

For example:

•

On slippery roads when Electronic Stabil-
ity Control (ESC) is actively operating.

•

If an approaching vehicle is detected at a
late stage.

•

If the oncoming vehicle is partially
obstructed by another vehicle or object.

•

If the oncoming vehicle's headlights are
off.

•

If the oncoming vehicle is moving errati-
cally and e.g. suddenly changes lanes at a
late stage.

City Safety in crossing traffic (p. 341)

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

Related information

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•

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City Safety steering assistance for

evasive maneuver

City Safety steering assistance can help the
driver steer away from a vehicle/obstacle
when it is not possible to avoid a collision by
braking alone. City Safety steering assistance
is always activated and cannot be switched
off.

Your vehicle swerves away

Slow-moving/stationary vehicle or obsta-
cle.

City Safety helps provide assistance by
strengthening the driver's steering move-
ments, but only if the driver has begun evasive
action and the system detects that the driver's
steering movements are not sufficient to avoid
a collision.

The brake system is used simultaneously to
further strengthen steering movements. The

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343

function also helps stabilize the vehicle after it
has passed the obstacle.

City Safety steering assistance can detect:

•

vehicles

•

cyclists

•

pedestrians

•

large animals

Related information

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City Safety steering assistance limitations
during evasive maneuvers (p. 343)

•

•

City Safety steering assistance

limitations during evasive

maneuvers

City Safety steering assistance may have lim-
ited functionality in certain situations and not
intervene, e.g.:

•

at speeds outside the range of
50-100 km/h (30-62 mph)

•

if the driver does not take evasive action

•

if speed-dependent power steering wheel
resistance is working at reduced power –
e.g. during cooling due to overheating.

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

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

Related information

•

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

•

•

Automatic braking during delayed

evasive maneuvers with City

Safety

City Safety

can assist the driver by auto-

matically braking the vehicle when it is not
possible to avoid a collision by steering alone.

City Safety assists the driver by periodically
attempting to predict possible "escape
routes" to the sides of the vehicle in the event
a slow-moving or stationary vehicle were to be
detected at a late stage.

Your vehicle (1) cannot detect any potential escape

routes for veering away from the vehicle ahead (2)

and may therefore apply the brakes at an earlier

stage.

Own vehicle

Slow-moving/stationary vehicles

This function is not available on all markets.

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City Safety will not intervene to automatically
apply the brakes if it is possible for the driver
to avoid a collision by steering the vehicle.

However, if City Safety determines that an
evasive maneuver would not be possible due
to traffic in the adjacent lane(s), the function
can assist the driver by automatically starting
to apply the brakes at an earlier stage.

Related information

•

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City Safety braking for oncoming

vehicles

City Safety can help you apply the brakes for
an oncoming vehicle in your lane.

If an oncoming vehicle veers into your lane
and a collision is unavoidable, City Safety can
help reduce your vehicle's speed to attempt to
mitigate the force of the collision.

Own vehicle

Oncoming vehicles

The following criteria must be met for the
function to work:

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

•

the road must be straight

•

your lane must have clear side lane mark-
ings

•

your vehicle must be positioned straight in
your lane

•

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

•

the oncoming vehicle's headlights must
be on

•

the function can only handle “front-to-
front” collisions

•

the function can only detect vehicles with
four wheels.

WARNING

Warnings and brake interventions due to

an imminent collision with an oncoming

vehicle always come very late.

Related information

•

•

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345

City Safety limitations

City Safety

functionality may be reduced in

certain situations.

Surroundings

Low objects

Hanging objects, such as flags for overhang-
ing loads or accessories such as auxiliary
lights or front protective grids that extend
beyond the height of the hood, may limit City
Safety functionality.

Slippery road conditions

The extended braking distance on slippery
roads may reduce City Safety's capacity to
help avoid a collision. In these types of situa-
tions, the Anti-lock Braking System and Elec-
tronic Stability Control (ESC

) are designed

for optimal braking power with maintained
stability.

Backlighting

The visual warning signal in the windshield
may be difficult to detect in bright sunlight, if
there are reflections, or if the driver is wearing
sunglasses or not looking straight ahead.

Heat

If the temperature in the passenger compart-
ment is high due to e.g. bright sunlight, the
visual warning signal in the windshield may be
temporarily disabled.

Camera and radar sensor's field of vision

The camera's field of vision is limited and in
certain situations, it may be unable to detect
pedestrians, large animals, cyclists or vehicles,
or it may detect them later than expected.

Vehicles that are dirty may be detected later
than clean vehicles, and in dark conditions,
motorcycles may be detected late or not at all.

If a text message displayed in the instrument
panel indicates that the camera or radar sen-
sor is obstructed, it may be difficult for City
Safety to detect pedestrians, large animals,
cyclists, vehicles or lane markings in front of
the vehicle. City Safety functionality may
therefore be reduced.

Text messages may not be displayed for all sit-
uations in which the windshield sensors are
blocked. The driver must therefore always
keep the windshield in front of the camera/
radar sensor clean.

CAUTION

Only a workshop may perform mainte-
nance on driver support components – an
authorized Volvo workshop is recom-
mended.

Driver intervention

Backing up

City Safety is temporarily deactivated when
the vehicle is backing up.

Low speed

City Safety is not activated at very low speeds
under 4 km/h (3 mph). The system will there-
fore not intervene in situations in which your
vehicle is approaching another vehicle very
slowly, such as when parking.

Active driver

Action by the driver always has priority. City
Safety will therefore not react or will react at a
later stage with a warning or intervention in
situations in which the driver is clearly steering
and operating the accelerator pedal, even if a
collision is unavoidable.

An active and aware driving style may there-
fore delay collision warnings and intervention
in order to minimize unnecessary warnings.

This function is not available on all markets.

Electronic Stability Control

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346

Important warnings

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.

WARNING

•

Warnings and brake interventions can
be triggered late or not at all if the traf-
fic situation or external influences pre-
vent the camera and radar unit from
properly detecting pedestrians,
cyclists, large animals or vehicles
ahead of the vehicle.

•

To be able to detect vehicles at night,
its front and rear lights must work and
illuminate clearly.

•

The camera and radar unit have a lim-
ited range for pedestrians and cyclists
– the system can provide effective
warnings and brake interventions if the
relative speed is lower than 50 km/h
(30 mph). For stationary or slow-mov-
ing vehicles, warnings and brake inter-
ventions are effective at vehicle speeds
of up to 70 km/h (43 mph). Speed
reduction for large animals is less than
15 km/h (9 mph) and can be achieved
at vehicle speeds over 70 km/h
(43 mph). At lower speeds, the warn-
ing and brake intervention for large ani-
mals is less effective.

•

Warnings for stationary or slow-mov-
ing vehicles and large animals can be
disengaged due to darkness or poor
visibility.

•

Warnings and brake interventions for
pedestrians and cyclists are disen-
gaged at vehicle speeds over 80 km/h
(50 mph).

•

Do not place, affix or mount anything
on the inside or outside of the wind-
shield, or in front of or around the cam-
era and radar unit – this could disrupt
camera-based functions.

•

Objects, snow, ice or dirt in the area of
the camera sensor can reduce the
function, disengage it completely or
give an improper function response.

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WARNING

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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 the collision warning or City
Safety to intervene.

•

Warnings and brake interventions for
pedestrians and cyclists are disen-
gaged at vehicle speeds over 80 km/h
(50 mph).

•

City Safety does not activate auto-
braking intervention during heavy
acceleration.

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

Market limitations

City Safety is not available in all countries. If
City Safety is not shown in the center display's

Settings

menu, your vehicle is not equipped

with this function.

In the center display's Top view, tap:

•

Settings

My Car

IntelliSafe

Related information

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•

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348

City Safety messages

A number of messages related to City Safety
may be displayed in the instrument panel.
Several examples are provided below.

Message

Meaning

City Safety

Automatic intervention

When City Safety is braking or has activated the automatic braking function, one or more symbols may
illuminate in the instrument panel and a text message may be displayed.

City Safety

Reduced functionality Service
required

The system is not functioning as intended. Contact a workshop

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

•

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349

Steering assistance at risk of

collision

The

Collision avoidance

function can help

the driver reduce the risk of the vehicle leav-
ing its lane unintentionally and/or colliding
with another vehicle or obstacle by actively
steering the vehicle back into its lane and/or
swerving.

The function consists of these subfunctions:

•

Run-Off Mitigation with steering assis-
tance

•

Steering assistance during collision risks
from oncoming traffic

•

Steering assistance during collision risks
from behind

After the system has automatically intervened,
this text message will appear in the instru-
ment panel:

Collision avoidance

–

Automatic

intervention

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.

Driver support systems (p. 282)

It is always the driver who must decide
how much the vehicle should be in control
– the vehicle can never take command.

Related information

•

•

Activating or deactivating steering assis-
tance during collision risks (p. 350)

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Run-Off Mitigation with steering assis-
tance (p. 350)

•

Steering assistance during collision risks
from oncoming traffic (p. 351)

•

Steering assistance during collision risks
from behind

(p. 352)

•

Steering assistance during collision risks
limitations (p. 353)

•

Symbols and messages for steering assis-
tance during collision risks (p. 354)

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350

Activating or deactivating steering

assistance during collision risks

The steering assistance function is optional –
the driver can choose to have it 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.

The function is automatically activated each
time the engine is started

When the

Collision avoidance

function is

deactivated, all subfunctions of the follow-
ing are deactivated:

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Steering assistance at risk of run-off

•

Steering assistance at risk of head-on
collision

•

Steering assistance during collision
risks from behind

Although it is possible to deactivate the
function, the driver is advised to keep it
activated since it can help improve driving
safety in most cases.

Related information

•

Steering assistance during collision risks
limitations (p. 353)

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Run-Off Mitigation with steering

assistance

Steering assistance has several sub-func-
tions. Run-Off Mitigation with steering assis-
tance can help the driver and reduce the risk
of the vehicle inadvertently running off the
road by actively steering the vehicle back
onto the road.

This function has two activation levels for
intervention:

•

Steering assistance only

•

Steering assistance with braking

Steering assistance only

Intervention with steering assistance

On some markets, the setting that was active when the engine was switched off is reactivated.

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351

Steering assistance with braking

Intervention with steering assistance and braking

Braking intervention assists in situations
where steering assistance alone is not suffi-
cient. Braking force is automatically adapted
according to the situation at the moment the
vehicle begins to run off the road.

The function is active at speeds between
65-140 km/h (40-87 mph) on roads with
clearly visible traffic lane markings/lines.

The system uses a camera to monitor the
edges of the road and the painted side marker
lines. If the vehicle is about to cross the edge
of the road, the function will attempt to steer
the vehicle back onto the road. If this is not
sufficient to keep the vehicle on the road, the
brakes will also be applied.

However, the function will

not

provide either

steering assistance or braking if the turn signal

is used. The function will also not be activated
if it detects that the driver is actively operating
the vehicle.

Related information

•

Steering assistance during collision risks
limitations (p. 353)

•

Steering assistance during

collision risks from oncoming

traffic

Steering assistance has several sub-func-
tions. Steering assistance during collision
risks from oncoming traffic can help a dis-
tracted driver who has not noticed that the
vehicle is veering out of the lane.

The function provides assistance by swerving your

vehicle back into your own lane.

Oncoming vehicles

Own vehicle

When steering assistance is activated, colli-
sion warning for driver support will also be
activated. However, the brake pedal pulsa-
tions that are part of collision warning will not
be activated.

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The function is active at speeds between
60-140 km/h (37-87 mph) on roads with
clearly visible traffic lane markings/lines.

If your vehicle is starting to veer from your
own lane and a vehicle is approaching from
the opposite direction, this function can help
the driver steer the vehicle back into its own
lane.

However, the function will

not

provide steer-

ing assistance if the turn signal is used. The
function will also not be activated if it detects
that the driver is actively operating the vehicle.

Related information

•

Collision risk warning from driver support
(p. 323)

•

•

Steering assistance during collision risks
limitations (p. 353)

Steering assistance during

collision risks from behind

Steering assistance has several sub-func-
tions. If you become distracted and do not
notice your vehicle starting to veer out of the
lane while another vehicle is approaching
from behind or is in your vehicle's blind spot,
Steering assistance during collision risks
from behind can help provide assistance.

The function provides assistance by steering your

vehicle back into your own lane.

Another vehicle in blind spot zone

Own vehicle

If your vehicle is beginning to veer out of your
lane while another vehicle is in your blind spot
or another vehicle is rapidly approaching in the

next lane, this function can help the driver
steer the vehicle back into its own lane.

Even if the driver intentionally changes lanes
using a turn signal without noticing another
vehicle approaching, the function can provide
assistance.

The function is active at speeds between
60-140 km/h (37-87 mph) on roads with
clearly visible traffic lane markings/lines.

The lights in the door mirrors will flash while
steering assistance is being provided, whether
or not the BLIS

function is activated. An

audible signal will also sound.

Related information

•

Steering assistance during collision risks
limitations (p. 353)

•

BLIS

(p. 356)

•

Blind Spot Information

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Steering assistance during

collision risks limitations

The function may have limited functionality in
certain situations and not intervene, e.g.:

•

for smaller vehicles such as motorcycles

•

if more than half of your vehicle has
moved into the adjacent lane

•

on roads/lanes with indistinct or no side
lane markings

•

outside the speed range 60-140 km/h
(37-87 mph)

•

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

Functionality may also be reduced in other sit-
uations, such as:

•

road work

•

winter driving conditions

•

narrow roads

•

poor road surfaces

•

a very sporty driving style

•

bad weather with reduced visibility.

In these demanding driving conditions, the
function may not be able to properly assist the
driver. In these situations, it is recommended
that it is turned off.

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

Related information

•

Run-Off Mitigation with steering assis-
tance (p. 350)

•

•

Steering assistance during collision risks
from oncoming traffic (p. 351)

•

Steering assistance during collision risks
from behind

(p. 352)

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354

Symbols and messages for

steering assistance during collision

risks

A number of symbols and messages related
to steering assistance may be displayed in

the instrument panel. Several examples are
provided below.

Symbol

Message

Meaning

Collision avoidance

Automatic intervention

When the function is activated, a message will appear to alert the driver.

Windscreen sensor

Sensor blocked, see Owner's manual

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

A text message can be erased by briefly press-
ing the

button in the center of the right-

side steering wheel keypad.

If the message persists: Contact a workshop

‒

an authorized Volvo workshop is recom-
mended.

Related information

•

Steering assistance during collision risks
limitations (p. 353)

•

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* Option/accessory.

355

Rear Collision Warning

The Rear Collision Warning

(RCW) function

can help the driver avoid rear-end collisions
from vehicles approaching from behind.

The function can alert drivers of following vehi-
cles of the risk of a collision by rapidly flashing
the turn signals.

If, at a speed below 30 km/h (20 mph), the
function detects that the vehicle is in danger
of being hit from behind, the seat belt tension-
ers may tension the front seat belts. The
Whiplash Protection System will also be acti-
vated in a collision.

Immediately before a collision from behind,
the function may also activate the brakes in
order to reduce the forward acceleration of the
vehicle during the collision. However, the
brakes will only be applied if your vehicle is
stationary. The brakes will be immediately
released if the accelerator pedal is depressed.

The function is automatically activated each
time the engine is started.

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. 282)

•

Rear Collision Warning

limitations

(p. 355)

•

Whiplash Protection System (p. 48)

Rear Collision Warning

limitations

In some situations, it may be difficult for Rear
Collision Warning (RCW) to warn the driver
of a collision risk.

This may be the case if:

•

the vehicle approaching from the rear is
detected at a late stage

•

the vehicle approaching from the rear
changes lanes at a late stage

•

a trailer, bicycle holder or similar is con-
nected to the vehicle's electrical system -
the function will then be automatically
deactivated.

In certain markets RCW does

not

warn

with the direction indicators due to local
traffic regulations – in such cases, that part
of the function is deactivated.

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

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

Warning of collision from the rear.

This function is not available on all markets.

Warning of collision from the rear.

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Related information

•

Rear Collision Warning

(p. 355)

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