Volvo S90 (2019 year). Manual — part 21

Cross Traffic Alert limitations

CTA

functionality may be reduced in certain

situations.

CTA does not function optimally in all situations
and has certain limitations. The CTA sensors, for
example, cannot "see" through other parked
vehicles or objects blocking the vehicle.

Below are a few examples of situations in which
CTA's field of vision may be initially limited and
approaching vehicles may therefore not be
detected until they are very close to your vehicle:

The vehicle is parked very far into a parking space.

In a diagonal parking space, CTA may be completely
"blind" on one side of your vehicle.

CTA's blind zone.

CTA's field of vision.

However, as you back your vehicle slowly out of a
parking space, CTA's field of vision changes in
relation to the obstructing vehicle/object and its
blind zone is reduced.

Cross Traffic Alert

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Examples of further limitations

•

Dirt, ice and snow covering the sensors may
reduce functionality and prevent the system
from providing warnings. For additional infor-
mation, see the section "Recommended
maintenance for Cross Traffic Alert".

•

CTA is automatically deactivated if a trailer,
bicycle holder or similar is connected to the
vehicle's electrical system.

•

For CTA to function optimally, bicycle hold-
ers, luggage racks or similar should not be
mounted on the vehicle's towbar.

Related information

•

•

Recommended maintenance for

Cross Traffic Alert

•

For optimal performance, it is important to
keep the areas in front of the sensors clean.

•

Do not attach any objects, tape or decals to
the surface of the sensors.

Keep the marked area clean (on both the left and right
sides of the vehicle)

The CTA sensors are located on the inside of
each of the rear fenders/bumpers and are also
used by the BLIS

and Rear Collision Warning

functions.

CAUTION

Repair of BLIS and CTA components or
repainting of the bumper may only be per-
formed by a workshop – an authorized Volvo
workshop is recommended.

Related information

•

•

BLIS* (p. 347)

•

Rear Collision Warning (p. 346)

Note: This illustration is general and details may vary depending on model.

Blind Spot Information

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Cross Traffic Alert messages

A number of messages related to CTA

may be

displayed in the instrument panel.

Some examples of symbols and messages are shown in the table below.

Message

Meaning

Blind spot sensor

Service required

The system is not functioning as intended. Contact a workshop

‒ an authorized Volvo workshop is recommended.

Blind spot system off

Trailer attached

BLIS and CTA have been deactivated because a trailer has been connected to the vehicle's electrical system.

A text message can be erased by briefly pressing
the

button in the center of the right-side

steering wheel keypad.

If the message persists: Contact a workshop

‒ an

authorized Volvo workshop is recommended.

Related information

•

Cross Traffic Alert

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Road Sign Information*

The Road Sign Information (RSI

) function can

help the driver observe speed-related road
signs.

Examples of signs that can be detected

Example

of registered speed information.

If the vehicle passes a speed limit sign, it will be
displayed in the instrument panel and the head-
up display*.

Activating/deactivating Road Sign Informa-
tion (p. 357)

In certain markets, the Road Sign Information
function (RSI) is only available in combination
with Sensus Navigation*.

WARNING

•

The Road Sign Information function is
supplementary driver support intended to
facilitate driving and help make it safer –
it cannot handle all situations in all traffic,
weather and road conditions.

•

Road Sign Information is not a substitute
for the driver's attention and judgment.
The driver is always responsible 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.

Related information

•

•

Road Sign Information and sign displays
(p. 358)

•

Road Sign Information and Sensus
Navigation (p. 358)

•

Road Sign Information with Speed Warning
and Settings (p. 359)

•

Activating/deactivating Speed Warning in
Road Sign Information (p. 360)

Road Sign Information

Road signs differ according to market

‒ the illustrations shown here are just some examples.

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•

Road Sign Information with speed camera
information (p. 360)

•

Road Sign Information limitations (p. 361)

Activating/deactivating Road Sign

Information

The Road Sign Information function can be
switched On or Off.

Press the

Road Sign

Information

button in the cen-

ter display's Function view.

•

GREEN button indicator light - RSI is acti-
vated.

•

GRAY button indicator light - RSI is deacti-
vated.

•

If the Automatic Speed Limiter function is
activated, road sign information is shown
in the driver display even if RSI

is not

activated.

•

To remove road sign information from the
driver display, you must deactivate both
Automatic Speed Limiter and RSI.

•

When the Automatic Speed Limiter func-
tion is activated but RSI is deactivated, no
warnings are given from RSI. RSI must
also be activated for warnings to be pos-
sible.

Related information

•

Road Sign Information (RSI)

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Road Sign Information and sign

displays

Road Sign Information (RSI

) displays road

signs in different ways depending on the sign
and situation.

Example

of registered speed information.

When RSI has registered a speed limit sign, the
sign will be displayed as a symbol in the instru-
ment panel and a colored marking will be shown
in the speedometer's speed scale.

If the vehicle is equipped with Sensus
Navigation*, speed-related information will also
be retrieved from map data, which means that the
instrument panel can display or change informa-
tion about speed limits even if the vehicle has not
passed a speed-related sign.

Signs for "School" and "Children
playing"

If the warning sign

"School"

or "Children playing" is
included in the satellite naviga-
tor's map data

, a symbol of

this type will be displayed in the
instrument panel.

Related information

•

Activating/deactivating Road Sign Informa-
tion (p. 357)

•

•

Road Sign Information with Speed Warning
and Settings (p. 359)

Road Sign Information and Sensus

Navigation

If the vehicle is equipped with Sensus Navigation,
speed-related information will be provided in the
following situations:

•

In cases where the speed limit is given indi-
rectly, e.g. signs for highways or other major
roads.

•

If a previously detected speed sign is
deemed to be no longer valid and no new
sign has been passed.

In certain markets, the Road Sign Information
function (RSI) is only available in combination
with Sensus Navigation*.

If a downloaded third-party app is used for
navigation, there is no support for speed-rela-
ted information.

Related information

•

Road Sign Information

Road signs differ according to market

‒ the illustrations shown here are just examples.

Only vehicles with Sensus Navigation*.

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Road Sign Information with Speed

Warning and Settings

The

Speed Limit Warning

sub-function for

RSI

can be switched On or Off.

Speed Limit Warning

warns the driver if the

vehicle's speed has exceeded the applicable
speed limit or the preset Speed Limiter speed.
The warning will be repeated once after
about 1 minute in that speed limit area if the
driver does not slow down.

A new warning and message indicating that the
speed limit has been exceeded will be provided
only when the vehicle has entered a new/differ-
ent speed limit area.

When Speed Warning is acti-
vated, the symbol for the cur-
rent speed limit in the instru-
ment panel

will flash tempo-

rarily if that speed is exceeded.

The driver can be alerted if the
vehicle is exceeding a detected
speed limit and is approaching
a speed camera.

Settings

Adjusting the Speed Warning limit

The driver can adjust the settings to be alerted at
a higher speed than the posted speed limit.

To adjust the Speed Warning limit:

1. Select

Settings

My Car

IntelliSafe

Road Sign Information

in the center

display's Top view.

2. Mark

Speed Limit Warning

> The function is activated and a speed limit

selector is displayed.

3. Tap the up/down arrows on the screen to

adjust the speed at which the Speed Warn-
ing will be given.

Please note that the set warn-
ing limit will not be used when
a speed camera symbol is dis-
played in the instrument panel.

Audible alert On/Off

An audible alert can also be given along with the
Speed Warning.

To adjust the audible alert settings:

1. Select

Settings

My Car

IntelliSafe

Road Sign Information

in the center

display's Top view.

2. Select/deselect

Road Sign Audio Warning

to activate/deactivate the audible alert.

When

Road Sign Audio Warning

is activated,

the driver will also be alerted if the vehicle is
approaching a one-way/"no-entry" road or
entrance.

Speed camera warning On/Off

If the vehicle is equipped with
Sensus Navigation* and map
data contains information on
speed cameras, the driver can
choose to receive an audible
alert if the vehicle is approach-
ing a speed camera.

To adjust the audible alert settings:

1. Select

Settings

My Car

IntelliSafe

Road Sign Information

in the center

display's Top view.

2. Select/deselect

Speed Camera Audio

Warning

to activate/deactivate the speed

camera audible alert.

Road Sign Information

Road signs differ according to market

‒ the illustration shown here is just an example.

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Related information

•

Road Sign Information with speed camera
information (p. 360)

•

Activating/deactivating Speed

Warning in Road Sign Information

To activate the

Speed Limit Warning

sub-func-

tion:

1. Select

Settings

My Car

IntelliSafe

Road Sign Information

in the center

display's Top view.

2. Mark

Speed Limit Warning

> The function is activated and a speed limit

selector is displayed.

(See description for “Adjusting the Speed
Warning limit” in section “Road Sign Infor-
mation with Speed Warning and Set-
tings.”)

Related information

•

Road Sign Information with Speed Warning
and Settings (p. 359)

•

Road Sign Information with speed

camera information

Vehicles equipped with RSI

and Sensus

Navigation* can provide information on upcom-
ing speed cameras in the instrument panel.

Speed camera information in the instrument panel

If the vehicle exceeds a
detected speed limit with the

Speed Limit Warning

func-

tion activated, the driver is
given a speed warning when
the vehicle is approaching a
speed camera if the navigation

map for the vehicle's current location contains
information on speed cameras.

Road Sign Information

Note: This illustration is general and details may vary depending on model and market/region.

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For more information on Speed Warnings in con-
junction with speed cameras, also see “Road
Sign Information with Speed Warning and Set-
tings” and “Road Sign Information limitations”.

•

For an audible alert to be provided if the
speed is exceeded, the

Speed Limit

Warning

function must be activated and

the

Road Sign Audio Warning

sub-

function must be On. Audible alerts are
provided if the vehicle's speed exceeds
the speed displayed by RSI in the instru-
ment panel.

•

It is possible to receive an audible alert
for speed cameras regardless of the vehi-
cle's speed, whether or not the speed
limit is exceeded, and even if the

Road

Sign Audio Warning

function is deacti-

vated: See heading "

Speed camera

warning

On/Off" in section "Road Sign

Information with Speed Warning and set-
tings" and select

Speed Camera Audio

Warning

there.

•

Information about speed cameras on the
navigation map is not available for all
markets/areas.

Related information

•

Road Sign Information with Speed Warning
and Settings (p. 359)

•

•

Road Sign Information limitations (p. 361)

Road Sign Information limitations

Road Sign Information (RSI

) functionality may

be reduced in certain situations.

RSI could have reduced functionality due to e.g.:

•

faded road signs

•

signs located in a curve in the road

•

twisted or damaged signs

•

signs positioned high above the road

•

fully/partially obstructed or poorly positioned
signs

•

signs partially or fully covered by frost, snow
and/or dirt

•

digital road maps

that are outdated, incor-

rect or do not contain speed information

Certain types of bike carriers that are con-
nected to the trailer socket may be interpre-
ted as a connected trailer by the RSI function.
In such cases, the instrument panel may indi-
cate incorrect speed information.

Road Sign Information

Vehicles equipped with Sensus Navigation*.

Map data and speed information is not available for all areas.

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The function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".

Related information

•

Camera limitations (p. 330)

•

Driver Alert Control

The Driver Alert Control (DAC) function is
designed to help capture the driver become
aware of erratic behavior, e.g. if the driver is dis-
tracted or showing signs of fatigue.

The objective of DAC is to detect slowly deterio-
rating driving behavior and is primarily intended to
be used on major roads. The function is not
intended for use in city traffic.

DAC is activated when the vehicle's speed
exceeds 65 km/h (40 mph) and remains active
as long as speeds are above 60 km/h (37 mph).

DAC detects the vehicle's position in the traffic lane.

A camera monitors the traffic lane's marker lines
and compares the direction of the road with the
driver's movements of the steering wheel.

The vehicle is moving erratically in the lane.

If driving behavior becomes
considerably erratic, the driver
will be alerted by this symbol in
the instrument panel, an audi-
ble signal and the message

Time for a break

If the vehicle is equipped with Sensus
Navigation* and the

Rest Stop Guidance

func-

tion is activated, a suitable place to take a break
will also be suggested (see section “Selecting
guidance to a rest stop if a Driver Alert Control
warning has been given”).

The warning will be repeated after a short time if
driving behavior does not improve.

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WARNING

•

The Driver Alert Control function is sup-
plementary driver support intended to
facilitate driving and help make it safer –
it cannot handle all situations in all traffic,
weather and road conditions.

•

Driver Alert Control must not be used to
extend a period of driving. The driver
should plan in breaks at regular intervals
and make sure they are well rested.

•

Driver Alert Control is not a substitute for
the driver's attention and judgment. The
driver is always responsible for ensuring
the vehicle is driven in a safe manner, at
the appropriate speed, with an appropri-
ate distance to other vehicles, and in
accordance with current traffic rules and
regulations.

WARNING

An alarm from Driver Alert Control should be

taken very seriously since a sleepy driver is

often not aware of their own condition.
If the alarm sounds or you feel fatigued:

•

Stop the vehicle safely as soon as possi-
ble and rest.

Studies have shown that it is just as danger-

ous to drive while tired as it is to drive under

the influence of alcohol or other stimulants.

Related information

•

Activating/deactivating Driver Alert Control
(p. 363)

•

Selecting guidance to a rest area if the
Driver Alert Control warning has been given
(p. 364)

•

Driver Alert Control limitations (p. 364)

Activating/deactivating Driver Alert

Control

The Driver Alert Control (DAC) function can be
activated/deactivated.

On/Off

To change DAC settings:

1. Tap

Settings

in the center display's Top

view.

2. Select

My Car

IntelliSafe

Driver Alert

Control

3. Select/deselect

Alertness Warning

to acti-

vate/deactivate DAC.

Related information

•

Driver Alert Control (p. 362)

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Selecting guidance to a rest area if

the Driver Alert Control warning has

been given

The

Rest Stop Guidance

function can be

switched on or off.

In vehicles equipped with Sensus Navigation*, the
driver can activate a guide that can automatically
suggest a suitable rest stop if the DAC warning
is given.

To select

Rest Stop Guidance

1. Tap

Settings

in the center display's Top

view.

2. Select

My Car

IntelliSafe

Driver Alert

Control

3. Select/deselect

Rest Stop Guidance

activate/deactivate the function.

Related information

•

Driver Alert Control (p. 362)

Driver Alert Control limitations

Driver Alert Control (DAC) functionality may be
reduced in certain situations.

In certain situations, the system may provide a
warning even if it has not detected a change in
driving behavior, e.g.:

•

in strong crosswinds

•

on grooved road surfaces.

WARNING

In certain cases, driving behavior might not be

affected despite the driver's fatigue – when

using the Pilot Assist function – resulting in

the driver not getting a warning from DAC.
It is therefore very important to always stop

and take a break at the slightest sign of fati-

gue, regardless of whether the DAC function

has issued a warning or not.

Driver Alert Control (p. 362)

The function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".

Related information

•

•

Camera limitations (p. 330)

Lane Keeping Aid

Lane Keeping Aid (LKA

) is designed to

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

Lake Keeping Assistance 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 unavailable
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.

Lane Keeping Aid

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Lane Keeping Aid steers the vehicle back into its lane.

Lane Keeping Aid alerts the driver using vibrations in the
steering wheel

100

Depending on the settings used, Lane Keeping
Aid functions in different ways:

•

With

Assist

101

activated: When the vehicle

approaches a lane marker line, LKA will
actively steer the vehicle back into the lane
using light pressure on the steering wheel.

•

With

Warning

101

activated: If the vehicle is

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

Steering assistance with Lane Keeping Aid
(p. 366)

When the direction indicator is activated, the
Lane Keeping Aid does not provide any warn-
ing or intervene with steering.

WARNING

•

The Lane Keeping Aid function is supple-
mentary driver support intended to help
improve driving safety – it cannot handle
all situations in all traffic, weather and
road conditions.

•

The function is not a substitute for the
driver's attention and judgment. The driver
is always responsible for ensuring the
vehicle is driven in a safe manner, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.

100

The steering wheel vibrations vary. The more time the vehicle is over the lane marker line, the longer the vibrations.

101

See "LKA assistance options" under "Activating/deactivating Lane Keeping Aid".

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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 steering assis-
tance or alerts.

Related information

•

•

Lane Keeping Aid limitations (p. 368)

•

Activating/deactivating Lane Keeping Aid
(p. 367)

•

Selecting type of assistance for Lane Keep-
ing Aid (p. 367)

•

Lane Keeping Aid symbols and messages
(p. 369)

•

Lane Keeping Aid symbols in the instrument
panel (p. 371)

Steering assistance with Lane

Keeping Aid

Lane Keeping Aid (LKA

102

) only functions if the

driver's hands are on the steering wheel.

This symbol on the instrument
panel indicates that LKA is
activated and continuously
monitoring that the driver's
hands are on the steering
wheel.

1. 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

2. If LKA detects that the driver is not actively

steering the vehicle, the message will be
repeated along with a longer audible signal.

3. If the driver still does not begin actively steer-

ing the vehicle, a short audible signal will be
given in a different tone, LKA will be deacti-

102

Lane Keeping Aid

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367

vated, another symbol will illuminate and the
following message will be displayed:

–

Lane Keeping Aid

–

Apply

steering

LKA will then be deactivated until the driver
begins actively steering the vehicle again.

The audible signal will stop and the information
symbol and message will disappear when LKA
detects that the driver is actively steering the
vehicle again.

Related information

•

Activating/deactivating Lane

Keeping Aid

The Lane Keeping Aid (LKA

103

) function can be

switched On or Off.

On/Off

Press the

Lane Keeping Aid

button in the center display's
Function view.

•

GREEN button indicator light - LKA is acti-
vated.

•

GRAY button indicator light - LKA is deacti-
vated.

Related information

•

Selecting type of assistance for

Lane Keeping Aid

The driver can determine what types of assis-
tance LKA

104

should provide if the vehicle veers

from its lane.

1. Select

Settings

My Car

IntelliSafe

the center display's Top view.

2. Under

Lane Keeping Aid Mode

, select

what assistance LKA should provide:

•

Assist

the driver will receive steering

assistance but no warning.

•

Both

- the driver will receive both steering

assistance and a warning.

•

Warning

- the driver will only receive a

warning.

Related information

•

103

Lane Keeping Aid

104

Lane Keeping Aid

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Lane Keeping Aid limitations

In certain demanding driving conditions, Lane
Keeping Aid may not be able to properly assist
the driver. In these situations, it is recommended
that the function be deactivated.

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 the power steering works at reduced
power, e.g. during cooling due to overheating
(see section “Speed-dependent steering
force”).

The function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".

Related information

•