Volvo S90 Twin Engine (2020 year). Manual in english - page 17

Selecting and activating speed limiter
(p. 291)

•

•

Temporary deactivation of speed limiter
(p. 292)

Temporary deactivation of speed

limiter

The speed limiter (SL

) can be temporarily

deactivated and set in standby mode.

Temporary deactivation with the
accelerator pedal

The speed limiter can also be temporarily
deactivated and overridden with the accelera-
tor pedal without the speed limiter first having
to be set in standby mode - e.g. to be able to
quickly accelerate the car out of a situation.

In which case, proceed as follows:

1. Fully depress the accelerator pedal and

release it to interrupt acceleration when
the desired speed has been reached.
> In this mode, the speed limiter is still

activated and the driver display's sym-
bol is therefore WHITE.

2. Fully release the accelerator pedal when

the temporary acceleration is finished.
> The car is then engine-braked automat-

ically to below the last stored maximum
speed.

Speed Limiter

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Related information

•

Selecting and activating speed limiter
(p. 291)

•

•

Deactivating the speed limiter (p. 292)

Limitations for speed limiter

Speed limiter (SL

) has certain general limi-

tations.

On steep downhill gradients the speed limit-
er’s (SL

) braking effect may be inadequate

and hence the stored maximum speed may be
exceeded. In this case, the driver is alerted by
the message

Speed limit exceeded

in the

driver display.

A text message that the maximum speed is
exceeded will be activated if the speed has
been exceeded by at least 3 km/h
(approx. 2 mph).

Related information

•

Driving support systems (p. 280)

Automatic speed limiter

The Automatic Speed Limiter (ASL

) func-

tion helps the driver to adapt the car's maxi-
mum speed to the speed shown on the road
signs.

The Speed Limiter function (SL

) can be

changed to Automatic Speed Limiter (ASL).

The automatic speed limiter uses speed infor-
mation from the Road Sign Information

(RSI

) function to automatically adapt the

car's maximum speed.

WARNING

Even if the driver clearly sees the speed-

related road sign, the speed information

from the Road Sign Information

(RSI)

function to ASL may be incorrect – in such

cases the driver must intervene him/herself

and accelerate or brake to a suitable speed.

Speed Limiter

Automatic Speed Limiter

Speed Limiter

Road Sign Information

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294

WARNING

•

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

•

Driver support functions are not a sub-
stitute for the driver's attention and
judgement. The driver is always
responsible for ensuring the car is
driven in a safe manner, at the appro-
priate speed, with an appropriate dis-
tance to other vehicles, and in accord-
ance with current traffic rules and reg-
ulations.

Is SL or ASL active?

Symbols in the driver display show which
speed limiter function is active:

Symbol

SL ASL

✓

Sign symbol after "70" = ASL is

activated.

✓

WHITE symbol: Function active, GREY symbol: Standby

mode.

The ASL symbol

The sign symbol (displayed along-
side the stored speed, "70", in the
centre of the speedometer) can be
shown in three colours with the fol-

lowing meanings:

Colour of

sign symbol

Meaning

Greenish yel-

low

ASL is active

Grey

ASL has been set in
standby mode

Orange

ASL is in temporary
standby mode - e.g. due to
a traffic sign not being
read

Related information

•

•

Activating or deactivating the automatic
speed limiter (p. 295)

•

Changing the tolerance for the automatic
speed limiter (p. 296)

•

Limitations for automatic speed limiter
(p. 296)

•

•

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295

Activating or deactivating the

automatic speed limiter

The automatic speed limiter function (ASL

)

can be activated and deactivated as a supple-
ment to the speed limiter (SL

Activating the automatic speed limiter

Activate or deactivate the
function using this button in
the centre display's function
view.

1. > GREEN button indication – the func-

tion is activated and the driver display
shows a sign symbol in the centre of
the speedometer.

2. Press the steering wheel button

> ASL is activated with the car’s current

speed.

•

If the automatic speed limiter function
is activated, Road Sign Information

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
function is activated but RSI is deacti-
vated, no warnings are given from RSI.
RSI must also be activated in order to
receive warnings.

Deactivating the automatic speed
limiter

To deactivate the automatic speed limiter:

–

Tap on the button in the function view.
> GREY button indication – ASL is

switched off and SL is activated
instead.

WARNING

After switching from ASL to SL the car will

no longer follow the signed speed limit but

only the stored maximum speed.

Related information

•

Automatic speed limiter (p. 293)

•

•

Limitations for automatic speed limiter
(p. 296)

•

Automatic Speed Limiter

Speed Limiter

Road Sign Information – RSI

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Changing the tolerance for the

automatic speed limiter

The Automatic Speed Limiter function
(ASL

) can be set for different tolerance lev-

els. The tolerance is adjusted in the same way
as the speed setting is in the speed limiter.

If, for example, the car follows a signed speed
limit of 70km/h (43 mph) the driver can
instead choose to allow the car to maintain
75 km/h (47 mph).

Buttons and symbols for the function.

–

Press the steering wheel button

(1)

until 70 km/h (43 mph) in the centre of
the speedometer (2) changes to 75 km/h
(47 mph).
> After which, the car uses the selected

tolerance 5 km/h (4 mph) as long as
signs passed are showing 70 km/h
(43 mph).

The tolerance is followed until a road sign with
a lower or higher speed is passed - then the
car follows the new signed speed limit instead
and the tolerance is deleted from the memory.

Automatic speed limiter (p. 293)

The maximum selectable tolerance is
+/- 10 km/h (5 mph).

Related information

•

•

Limitations for automatic speed limiter
(p. 296)

•

Limitations for automatic speed

limiter

Automatic speed limitation (ASL

) takes

place using speed information from the Road
Sign Information function

(RSI

) – not from

the speed limit road signs that the car
passes.

If road sign information cannot interpret and
provide speed information to the driver sup-
port systems, the automatic speed limiter sets
in standby mode and changes to normal
speed limiter. In such cases the driver must
intervene and brake to a suitable speed.

The automatic speed limiter will be reactivated
when road sign information can once again
interpret and provide speed information.

Related information

•

Automatic speed limiter (p. 293)

•

•

Automatic Speed Limiter

Road Sign Information – RSI

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297

Cruise control

The cruise control (CC

) helps the driver

maintain an even speed, which can result in
more relaxed driving on motorways and long,
straight roads in regular traffic flows.

Overview

Buttons and symbols for the function.

: Activates cruise control from standby

mode and resumes stored speed

: Increases the stored speed

From standby mode

– activates

cruise control and stores current speed

From active mode

– deactivates/

changes cruise control to standby mode

: Reduces stored speed

Marker for stored speed

The car's current speed

Stored speed

Driving support systems (p. 280)

In cars equipped with adaptive cruise con-
trol

(ACC

), it is possible to switch

between cruise control and adaptive cruise
control.

WARNING

•

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

•

Using engine braking instead of the
foot brake

With Cruise Control, speed is regulated with
less frequent application of the foot brake. On
a downhill gradient it may sometimes be
desirable to start moving a little faster and

Cruise Control

Adaptive Cruise Control

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298

limit the acceleration by engine braking. In this
case the driver can temporarily disable foot
brake application by Cruise Control.

To do so, proceed as follows:

–

Depress the accelerator pedal about half-
way down and release.
> Cruise Control will disengage its auto-

matic foot braking and then uses
engine braking only.

Related information

•

•

Selecting and activating cruise control
(p. 298)

•

Deactivating cruise control (p. 299)

•

Standby mode for cruise control (p. 299)

•

Set the stored speed for driver support
(p. 320)

•

Change between cruise control and adap-
tive cruise control

Selecting and activating cruise

control

The cruise control function (CC

) must first

be selected and activated in order to be able
to regulate the speed.

In order to start the cruise control from the
standby mode, the car's current speed must
be 30 km/h (20 mph) or higher.

1. Press

◀

(1) or

▶

(3) to scroll to the symbol

for cruise control

(4).

> The symbol is grey – cruise control is in

standby mode.

2. When cruise control is selected – press

the steering wheel button

(2) to acti-

vate.
> The symbol is white – cruise control is

started and the current speed is stored
as maximum speed. The lowest speed
that can be stored is 30 km/h
(20 mph).

Reactivating cruise control to the last
stored speed

–

When cruise control is selected – press
the steering wheel button

to activate.

> The cruise control markings and sym-

bols in the driver display change colour
from GREY to WHITE — the car will
now follow the most recently stored
speed again.

WARNING

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

steering wheel button.

Related information

•

Deactivating cruise control (p. 299)

•

•

Standby mode for cruise control (p. 299)

Cruise Control

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Deactivating cruise control

Cruise control (CC

) can be deactivated and

switched off.

1. Press the steering wheel button

(2).

> The symbol and indicators turn grey –

cruise control is set in standby mode.

2. Press the steering wheel button

◀

(1) or

▶

(3) to change to another function.
> The driver display's symbol and indica-

tor for cruise control (4) are switched
off – which deletes the stored maxi-
mum speed.

Related information

•

Change between cruise control and adap-
tive cruise control

•

Selecting and activating cruise control
(p. 298)

•

•

Standby mode for cruise control (p. 299)

Standby mode for cruise control

Cruise control (CC

) can be deactivated and

set in standby mode. This can take place due
to driver intervention or automatically.

Standby mode means that the function is
selected in the driver display but not activated.
In this case, cruise control does not regulate
speed.

Standby mode on driver intervention

The cruise control is deactivated and set in
standby mode if any of the following occurs:

•

The foot brake is used.

•

The gear selector is moved to

position.

•

The clutch pedal is held depressed for
longer than 1 minute.

•

The driver maintains a speed higher than
the stored speed for longer than 1 minute.

The driver must then control the speed him-
self/herself.

A temporary increase in speed with the accel-
erator pedal, e.g. during overtaking, does not
affect the setting - the car returns to the last
stored speed when the accelerator pedal is
released.

Cruise Control

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Automatic standby mode

Automatic standby mode may occur if:

•

wheels lose traction

•

engine speed is too low/high

•

brake temperature is too high

•

speed falls below 30 km/h (20 mph).

The driver must then control the speed him-
self/herself.

Related information

•

Selecting and activating cruise control
(p. 298)

•

•

Deactivating cruise control (p. 299)

Adaptive cruise control

The adaptive cruise control (ACC

) helps the

driver to maintain an even speed combined
with a pre-selected time interval to the vehi-
cle ahead.

An adaptive cruise control can provide a more
relaxing driving experience on long journeys on
motorways and long straight main roads in
smooth traffic flows.

The camera and radar unit measures the distance to

the vehicle ahead.

The driver selects the desired speed and a
time interval to the vehicle ahead. If the cam-
era and radar unit detects a slower vehicle in
front of the car, the speed is adapted automat-
ically via the preset time interval to the vehicle.

When the road is clear again the car returns to
the selected speed.

If the cornering support

function is activated,

this may also affect the speed of the car.

WARNING

•

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

•

This function can be either standard or optional, depending on market.

Adaptive Cruise Control

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Adaptive Cruise Control regulates the speed
with acceleration and braking. It is normal for
the brakes to emit a low sound when they are
being used to adjust the speed.

The adaptive cruise control aims to control the
speed in a smooth way. In situations that
demand sudden braking the driver must brake
himself/herself. This applies in cases of large
speed differences or if the vehicle in front
brakes suddenly. Due to the limitations of the
radar unit, braking may come unexpectedly or
not at all.

The adaptive cruise control aims to follow the
vehicle ahead in the same lane at a time inter-
val set by the driver. If the radar unit cannot
see any vehicle in front then the car will
instead maintain the speed set and stored by
the driver. This also takes place if the speed of
the vehicle ahead increases and exceeds the
stored speed.

IMPORTANT

Maintenance of driver support components
must only be performed at a workshop –
an authorised Volvo workshop is recom-
mended.

Related information

•

Driving support systems (p. 280)

•

Controls and display mode for adaptive
cruise control

(p. 301)

•

Selecting and activating adaptive cruise
control

(p. 302)

•

Symbols and messages for adaptive
cruise control

•

(p. 307)

•

Warning from driver support in the event
of a collision risk (p. 318)

•

Set time interval to vehicle ahead (p. 321)

•

Set the stored speed for driver support
(p. 320)

•

Automatic braking with driver support
(p. 322)

•

Change of target with driver support
(p. 319)

•

Overtaking Assistance (p. 326)

Controls and display mode for

adaptive cruise control

A summary of how adaptive cruise control
(ACC

) is controlled using the left-hand key-

pad on the steering wheel and how the func-
tion is shown in the display.

From standby mode

- activates and

stores the current speed

From active mode

- deactivates/

changes to standby mode

: Activates the function from standby

mode and resumes stored speed

: Increases the stored speed

: Reduces stored speed

Increases the time interval to vehicles
ahead

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Reduces the time interval to vehicles
ahead
Target vehicle indicator: the function has
detected and is following a target vehicle
at the preset time interval
Symbol for time interval to vehicles ahead

Driver display

Indication of speeds.

Stored speed.

Speed of vehicle ahead.

Current speed of your car.

Related information

•

•

Selecting and activating adaptive

cruise control

Adaptive cruise control (ACC

) must first be

selected and then activated to enable it to
control speed and distance.

To start the function requires the following:

•

The driver's seatbelt must be buckled and
the driver's door must be closed.

•

There must be a vehicle (the "target vehi-
cle") within reasonable distance in front of

This function can be either standard or optional, depending on market.

Adaptive Cruise Control

This function can be either standard or optional, depending on market.

Adaptive Cruise Control

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the car, or the current speed must be at
least 15 km/h (9 mph).

•

For cars with manual gearbox. Speed
must be at the lowest 30 km/h (20 mph).

1. Press the steering wheel button

◀

(2) or

▶

(3) to scroll to the adaptive cruise control
symbol

(4).

> The symbol is grey – the adaptive

cruise control is in standby mode.

2. When speed limiter is selected – press the

steering wheel button

(1) to activate.

> The symbol is white – the speed limiter

is started and the current speed is
stored as maximum speed.

Reactivating adaptive cruise control to
the last stored speed

–

When the adaptive cruise control is
selected – press the steering wheel but-
ton

to activate.

> The cruise control markings and sym-

bols in the driver display change colour
from GREY to WHITE — the car will
now follow the most recently stored
speed again.

WARNING

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

steering wheel button.

Additional indicators in the driver
display

The time interval is only
adjusted to the vehicle ahead
by the ACC when the dis-
tance symbol shows two
vehicles.

At the same time a speed
range is marked.

The higher speed is the
stored speed, and the lower
speed is that of the vehicle
ahead (target vehicle).

Related information

•

Deactivating adaptive cruise control

•

(p. 303)

•

Change between cruise control and adap-
tive cruise control

•

Deactivating adaptive cruise

control

The adaptive cruise control (ACC

) can be

deactivated and switched off.

1. Press the steering wheel button

(2).

> The symbol and indicators turn grey –

the adaptive cruise control is set in
standby mode. The indicator for time
interval and symbol for target vehicle, if
activated, are also switched off.

2. Press the steering wheel button

◀

(1) or

▶

(3) to change to another function.
> The driver display's symbol and indica-

tor for adaptive cruise control (4) are
switched off – which deletes the stored
maximum speed.

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WARNING

•

With the adaptive cruise control is in
standby mode, the driver must inter-
vene and regulate both speed and dis-
tance to the vehicle ahead.

•

When the adaptive cruise control is in
standby mode and the car comes too
close to a vehicle ahead, the driver may
be warned of the short distance by the
Distance Warning

function instead.

Related information

•

Selecting and activating adaptive cruise
control

•

(p. 302)

•

Change between cruise control and adap-
tive cruise control

•

Standby mode for adaptive cruise

control

Adaptive cruise control (ACC

) can be deac-

tivated and set to standby mode. This can
take place due to driver intervention or auto-
matically.

Standby mode means that the function is
selected in the driver display but not activated.
Adaptive cruise control does not then regulate
the speed or distance to the vehicle in front.

Standby mode on driver intervention

The adaptive cruise control is deactivated and
set in standby mode if any of the following
occurs:

•

The foot brake is used.

•

The gear selector is moved to

position.

•

The driver maintains a speed higher than
the stored speed for longer than 1 minute.

•

The clutch pedal is depressed for approx. 1
minute - applies to cars with manual gear-
box.

A temporary increase in speed with the accel-
erator pedal, e.g. during overtaking, does not
affect the setting - the car returns to the last

stored speed when the accelerator pedal is
released.

WARNING

•

With the adaptive cruise control is in
standby mode, the driver must inter-
vene and regulate both speed and dis-
tance to the vehicle ahead.

•

When the adaptive cruise control is in
standby mode and the car comes too
close to a vehicle ahead, the driver may
be warned of the short distance by the
Distance Warning

function instead.

Automatic standby mode

Adaptive cruise control is dependent on other
systems, e.g. stability control/anti-skid ESC

If any of these other systems stops working,
adaptive cruise control is deactivated auto-
matically.

This function can be either standard or optional, depending on market.

Adaptive Cruise Control

This function can be either standard or optional, depending on market.

Adaptive Cruise Control

Electronic Stability Control

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WARNING

With automatic standby mode, the driver is

warned via an acoustic signal and a mes-

sage on the driver display.

•

The driver must then regulate the car's
speed, apply the brakes as needed and
maintain a safe distance to other vehi-
cles.

Automatic standby mode may occur if:

•

the speed is below 5 km/h ((3 mph)) and
ACC is uncertain whether the vehicle
ahead is a stationary vehicle or an object,
such as a speed bump.

•

the speed is below 5 km/h ((3 mph)) and
the vehicle ahead turns off so that ACC no
longer has a vehicle to follow.

•

speed is reduced to below 30 km/h
(20 mph) - only applies to cars with man-
ual gearbox.

•

the driver opens the door.

•

the driver takes off the seatbelt.

•

engine speed is too low/high.

•

one or more wheels lose traction.

•

brake temperature is high.

•

the parking brake is applied.

•

the camera and radar unit is covered by
e.g. snow or heavy rainfall (camera lens/
radio waves are blocked).

Related information

•

Selecting and activating adaptive cruise
control

•

(p. 302)

•

Deactivating adaptive cruise control

(p. 303)

•

Limitations for adaptive cruise

control

Adaptive Cruise Control (ACC

) may have

limitations in certain situations.

Steep roads and/or heavy load

Bear in mind that the adaptive cruise control is
primarily intended for use when driving on
level road surfaces. The function may have dif-
ficulty in keeping the correct distance from the
vehicle ahead when driving on steep downhill
slopes - in which case, be extra attentive and
ready to brake.

Do not use adaptive cruise control if the car
has a heavy load or a trailer is connected to
the car.

Miscellaneous

Drive mode

Off Road

cannot be selected

when the adaptive cruise control is activated.

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WARNING

•

This is not a collision avoidance sys-
tem. The driver is always responsible
and must intervene if the system does
not detect a vehicle ahead.

•

The function does not brake for
humans or animals, and not for small
vehicles such as bicycles and motorcy-
cles. Nor for low trailers, oncoming,
slow or stationary vehicles and objects.

•

Do not use the function in demanding
situations, such as in city traffic, at
junctions, on slippery surfaces, with a
lot of water or slush on the road, in
heavy rain/snow, in poor visibility, on
winding roads or on slip roads.

This function uses the car's camera and
radar units, which have certain general lim-
itations.

Related information

•

Limitations for camera and radar unit
(p. 337)

•

Change between cruise control

and adaptive cruise control

the centre display

When the normal cruise control (CC

) is

selected in the driver display, it is possible to
change to adaptive cruise control (ACC

) in

the centre display's function view.

Activate or deactivate the
function using this button in
the centre display's function
view.

•

GREEN button indication – adaptive
cruise control is deactivated and normal
cruise control is set in standby mode.

•

GREY button indication – normal cruise
control is deactivated and adaptive cruise
control is set in standby mode.

A symbol in the driver display shows which
cruise control is active:

Cruise control

(CC)

Adaptive cruise con-

trol (ACC)

WHITE symbol: Function active, GREY symbol: Standby

mode

Related information

•

•