Driver support -> City Safety? for Your Volvo Xc90 SUV 2020

City Safety messages (p. 336)

•

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).

Function overview.

Acoustic collision warning signal

Pedestrians

Collision warning symbol

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).

Camera/radar sensor distance monitoring

City Safety carries out three steps in the fol-

lowing order:

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).

1. Collision warning

2. Brake assistance

3. Auto-brake

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-

Descriptions of what happens in these three

steps are provided below.

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pedestrians, cyclists or large animals that are

crossing the road in front of your vehicle.

The seat belt tensioner may be activated when

the automatic braking function is triggered.

1 - Collision warning

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

nent collision.

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.

In certain situations, auto-braking may begin

with a limited braking force before applying

full braking force.

In vehicles equipped with a head-up display*,

a flashing warning symbol will be displayed on

the windshield.

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.

2 - Brake assistance

If the risk of a collision increases after the colli-

sion warning, brake support will be activated.

Auto-braking can always be cancelled if the

driver presses hard on the accelerator pedal.

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.

When City Safety activates the brakes, the

brake lights come on.

Collision warning symbol on the windshield.

3 - Auto-brake

The automatic braking function is activated at

the last moment.

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.

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.

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.

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.

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

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number of warnings, but it will also result in

City Safety providing warnings at a later stage.

Related information

Setting a warning distance for City

Safety

City Safety in crossing traffic (p. 329)

•

City Safety⁵⁷is always active, but the func-

tion's warning distance can be adjusted.

•

The Late warning distance setting should

therefore only be used in exceptional cases,

such as when a more dynamic driving style is

preferred.

City Safety braking for oncoming vehicles

(p. 332)

Head-up display* (p. 143)

Seat belt tensioners (p. 50)

•

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 or 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 or 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

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Detecting obstacles with City

WARNING

Safety

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.

The warning with direction indicators for

Rear Collision Warning* is deactivated if

the collision warning distance in the City

Safety function is set to the lowest level

"Late".

•

City Safety⁵⁸can 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.

The seat belt tensioning and braking func-

tions remain active.

City Safety warns the driver if there is a

risk of collision, but the function cannot

reduce the driver's reaction time.

•

Related information

For City Safety to be able to detect a vehicle in

the dark, its headlights and taillights must be

on and clearly visible.

•

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.

Rear Collision Warning * (p. 337)

Cyclists

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.

•

Examples of what City Safety would interpret to be a

cyclist: clear body and bicycle shapes.

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|| 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.

Pedestrians

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.).

•

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.

pedestrians if the background contrast

of the pedestrians is poor - warning

and brake interventions may then be

late or not occur at all.

The system can only detect adult cyclists rid-

ing on bicycles intended for adults.

WARNING

Examples of what the system considers to be a

pedestrian: clear body contours.

pedestrians who are carrying large

objects.

City Safety is supplementary driver sup-

port, but it cannot detect all cyclists in all

situations and, for example, cannot see:

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.

The driver is always responsible for ensur-

ing that the vehicle is driven correctly and

with a safety distance suitable for the

speed.

partially obscured cyclists.

•

cyclists if the background contrast of

the cyclist is poor - warning and brake

interventions may then be late or not

occur at all.

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.

cyclists in clothing that hides their

body contour.

•

bikes loaded with large objects.

The driver is always responsible for ensur-

ing that the vehicle is driven correctly and

with a safety distance suitable for the

speed.

City Safety can detect pedestrians even in

dark conditions if they are illuminated by the

vehicle's headlights.

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DRIVER SUPPORT

Large animals

City Safety in crossing traffic

WARNING

City Safety⁵⁹can assist the driver when turn-

ing into the path of an oncoming vehicle in an

intersection.

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 of the ani-

mal's background is poor - warning

and brake interventions may then

occur late or not at all.

Examples of what City Safety would interpret as a

large animal: stationary or moving slowly and with

clear body contours.

smaller animals such as cats and dogs.

•

The driver is always responsible for ensur-

ing that the vehicle is driven correctly and

with a safety distance suitable for the

speed.

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.

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.

Related information

•

•

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.

The following criteria must also be met:

your vehicle's speed must be at least

4 km/h (3 mph)

•

City Safety can detect large animals even in

dark conditions if they are illuminated by the

vehicle's headlights.

your vehicle must be making a left turn

•

the oncoming vehicle's headlights must

be on

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||

Related information

Limitations of City Safety in

crossing traffic

•

The function uses the vehicle's camera and

radar sensor, which has certain general

limitations.

In certain situations, it may be difficult for

City Safety to help the driver avoid a collision

with crossing traffic.

City Safety in crossing traffic (p. 329)

•

Related information

•

Camera/radar sensor limitations (p. 318)

For example:

on slippery roads when Electronic Stability

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.

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DRIVER SUPPORT

function also helps stabilize the vehicle after it

has passed the obstacle.

City Safety steering assistance for

evasive maneuver

Automatic braking during delayed

evasive maneuvers with City

Safety

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.

City Safety steering assistance can detect:

City Safety⁶⁰can 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.

vehicles

•

cyclists

pedestrians

large animals

Related information

•

•

Your vehicle swerves away

Slow-moving/stationary vehicle or obsta-

cle.

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.

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.

Own vehicle

Slow-moving/stationary vehicles

The brake system is used simultaneously to

further strengthen steering movements. The

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DRIVER SUPPORT

|| 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.

your lane must have clear side lane mark-

ings

City Safety braking for oncoming

vehicles

City Safety can help you apply the brakes for

•

your vehicle must be positioned straight in

your lane

an oncoming vehicle in your lane.

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.

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.

the oncoming vehicle must be positioned

within your vehicle's lane markings

the oncoming vehicle's headlights must

be on

Related information

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

•

Own vehicle

•

Oncoming vehicles

The following criteria must be met for the

function to work:

your vehicle's speed must be above

4 km/h (3 mph)

•

the road must be straight

•

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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.

City Safety limitations

Driver intervention

Backing up

City Safety is temporarily deactivated when

the vehicle is backing up.

City Safety⁶¹functionality may be reduced in

certain situations.

Surroundings

Low speed

Low objects

Vehicles that are dirty may be detected later

than clean vehicles, and in dark conditions,

motorcycles may be detected late or not at all.

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.

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.

If a text message displayed in the instrument

panel indicates that the camera/radar sensor

is obstructed, it may be difficult for City Safety

to detect pedestrians, large animals, cyclists,

vehicles or lane markings in front of the vehi-

cle. City Safety functionality may therefore be

reduced.

Active driver

Slippery road conditions

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.

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 (ESC⁶²) are designed

for optimal braking power with maintained

stability.

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.

An active and aware driving style may there-

fore delay collision warnings and intervention

in order to minimize unnecessary warnings.

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.

CAUTION

Only a workshop may perform mainte-

nance on driver support components – an

authorized Volvo workshop is recom-

mended.

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.

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Electronic Stability Control

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||

Warnings and brake interventions for

pedestrians and cyclists are disen-

gaged at vehicle speeds over 80 km/h

(50 mph).

Other limitations

WARNING

•

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.

•

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.

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.

Never wait for a warning or assistance.

•

Apply the brakes when necessary.

To be able to detect vehicles at night,

its front and rear lights must work and

illuminate clearly.

•

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.

•

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.

•

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DRIVER SUPPORT

Settings menu, your vehicle is not equipped

with this function.

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.

•

In the center display's Top view, tap:

•

Settings My Car IntelliSafe

Related information

•

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.

Camera/radar sensor limitations (p. 318)

•

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

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DRIVER SUPPORT

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

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

Automatic intervention

The system is not functioning as intended. Contact a workshop^A.

City Safety

Reduced functionality Service

required

A

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^A.

Related information

•

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Rear Collision Warning*⁶³

Rear Collision Warning*⁶⁵

WARNING

The Rear Collision Warning⁶⁴(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.

limitations

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.

•

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 driver is advised to read all sec-

tions in the Owner's Manual about this

function to learn of its limitations,

which the driver must be aware of

before using the function.

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.

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.

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.

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.

Rear Collision Warning * limitations

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.

The function is automatically activated each

time the engine is started.

Related information

Driver support systems (p. 276)

•

•

(p. 337)

Whiplash Protection System (p. 46)

•

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Warning of collision from the rear.

This function is not available on all markets.

Warning of collision from the rear.

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BLIS*

The BLIS⁶⁶function is designed to help pro-

vide assistance in heavy traffic with several

lanes moving in the same direction by helping

the driver to detect the presence of vehicles

in the "blind spot" area behind and to the side

of the vehicle.

The warning with direction indicators for

Rear Collision Warning* is deactivated if

the collision warning distance in the City

Safety function is set to the lowest level

"Late".

The seat belt tensioning and braking func-

tions remain active.