Volvo V90 (2019 year). Instruction - part 17

Activating and starting Cruise Control
(p. 288)

In vehicles equipped with Adaptive Cruise
Control*, it is possible to switch between
cruise control and Adaptive Cruise Control –
see the heading "Switching between CC and
ACC".

Road Sign Information (RSI)

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

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288

WARNING

•

The cruise control function is supplemen-
tary driver support intended to facilitate
driving and help make it safer – it cannot
handle all situations in all traffic, weather
and road conditions.

•

The driver is advised to read all sections
in the Owner's Manual about this function
to learn of its limitations, which the driver
must be aware of before using the func-
tion (see the link list at the end of this
article).

•

Cruise 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 appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.

Related information

•

•

Managing Cruise Control speed (p. 289)

•

Deactivating and putting Cruise Control in
standby mode (p. 291)

•

Reactivating Cruise Control from standby
mode (p. 291)

•

Switching off Cruise Control (p. 292)

•

Switching between Cruise Control and Adap-
tive Cruise Control (p. 309)

Activating and starting Cruise

Control

The Cruise Control (CC

) function must be

selected and activated in order to regulate
speed.

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

Putting Cruise Control in standby mode

To put Cruise Control in standby mode:

–

Tap

◀ (1) or ▶ (3) and scroll to the

(4) function.
> A symbol will appear and Cruise Control

can then be activated.

Activating/starting Cruise Control

In order to start Cruise Control from standby
mode, the vehicle's current speed must be

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289

30 km/h (20 mph) or higher. The lowest speed
that can be set is 30 km/h (20 mph).

To start Cruise Control:

–

With the

function displayed, press

(2) on the steering wheel keypad.

> Cruise Control will be started and the

vehicle's current speed will be set.

Cruise control can then not be connected at
speeds below 30 km/h (20 mph).

Related information

•

Managing Cruise Control speed

Cruise Control (CC

) can be set to various

speeds.

Setting/changing set speed

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

For vehicles with only CC

–

Change a set speed by pressing the

(1)

(3) buttons briefly or by pressing and

holding them:

•

Press briefly: Press briefly: each press
changes the speed in +/- 1 mph
(+/- 1 km/h) increments.

•

Press and hold: release the button when
the set speed indicator (4) has moved to
the desired speed.

•

The most recently set speed will be stored.

If speed is increased by depressing the accelera-
tor pedal while pressing the

(1) button on

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

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

Cruise Control

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For vehicles with both CC and ACC

–

Change a set speed by pressing the

(1)

(3) buttons briefly or by pressing and

holding them:

•

Press briefly: Press briefly: each press
changes the speed in +/- 5 mph
(+/- 5 km/h) increments.

•

Press and hold: release the button when
the set speed indicator (4) has moved to
the desired speed.

•

The most recently set speed will be stored.

If speed is increased by depressing the accelera-
tor pedal while pressing the

(1) button on

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

Using engine braking instead of
applying the brakes

Cruise Control regulates speed by lightly applying
the brakes. On downgrades, it can sometimes be
desirable to roll a bit faster and let speed be
reduced instead by engine braking alone. The
driver can temporarily disengage the Cruise Con-
trol braking function.

To disengage CC:

–

Press the accelerator pedal about halfway
down and then release it.
> Cruise Control will automatically disen-

gage the automatic brake function and
speed will only be reduced using the
engine braking function.

How drive mode affects cruise control

The way the cruise control maintains the vehicle's
speed can vary depending on the selected drive
mode

Cruise Control Eco Cruise with ECO drive
mode

In the ECO drive mode, cruise control's accelera-
tion and deceleration will be smoother than in
other drive modes to help provide optimal fuel
efficiency and reduced environmental impact.
Because of this, the vehicle's actual speed may
be slightly above or below the set speed.

For more information, see "ECO drive mode"
under "Eco Cruise".

Cruise Control Dynamic Cruise

With the Dynamic drive mode, cruise control's
acceleration and deceleration will be faster and
more immediate than in other drive modes.

Related information

•

•

Drive modes* (p. 431)

•

ECO drive mode (p. 433)

For more information, see "Drive modes".

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291

Deactivating and putting Cruise

Control in standby mode

Cruise Control (CC

) can be temporarily put

into standby mode and then reactivated.

Deactivating and putting Cruise Control
in standby mode

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

To put Cruise Control in standby mode:

–

Press the

button on the steering wheel

(2).
> The Cruise Control markings and symbols

will change from WHITE to GRAY, indicat-
ing that Cruise Control is temporarily
deactivated and the driver needs to con-
trol the vehicle's speed.

Standby mode due to action by the driver

Cruise Control will be temporarily deactivated and
put in standby mode if:

•

the brakes are applied

•

the gear selector is moved to N

•

the vehicle is driven faster than the set
speed for more than 1 minute

The driver must then control the vehicle's speed.

Automatic standby mode

Cruise Control will be temporarily deactivated and
put in standby mode if:

•

the wheels lose traction

•

the engine speed (rpm) is too low/high

•

the temperature in the brake system
becomes too high

•

the vehicle's speed goes below 30 km/h
(20 mph).

The driver must then control the vehicle's speed.

Related information

•

Reactivating Cruise Control from

standby mode

Cruise Control (CC

) can be temporarily put

into standby mode and then reactivated.

Reactivating Cruise Control from
standby mode

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

To start Cruise Control from standby mode:

–

Press the

button on the steering wheel

(1).
> The Cruise Control marking in the instru-

ment panel will change from GRAY to
WHITE and the vehicle will then return to
the most recently set speed.

Cruise Control

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292

To start Cruise Control from standby mode:

–

Press the

button on the steering wheel

(2).
> The Cruise Control markings and symbols

in the instrument panel will change from
GRAY to WHITE and the vehicle's current
speed will be set.

WARNING

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

steering wheel button.

Related information

•

Switching off Cruise Control

Cruise control (Cruise Control - CC) can be
turned off.

Function buttons and symbols

To turn off Cruise Control:

1. Press the

button on the steering wheel

(2).
> Cruise Control will go into standby mode.

2. Press the ◀ (1) or ▶ (3) buttons on the

steering wheel to select another function.
>

The Cruise Control symbol

(4) in

the instrument panel will go out and the
set speed will be erased.

3. Press the

(2) button on the steering

wheel keypad again.
> Another function will be activated.

In vehicles equipped with Adaptive Cruise
Control*, it is possible to switch between
cruise control and Adaptive Cruise Control –
see the heading "Switching between CC and
ACC".

Related information

•

Switching between Cruise Control and Adap-
tive Cruise Control (p. 309)

•

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

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293

Distance Alert*

The Distance Alert

function can help the driver

become aware if the time interval to the vehicle
in front is too short.

However, the vehicle must be equipped with a
head-up display in order to display the Distance
Alert, which will then be indicated by a symbol
on the windshield as long as the time interval to
the vehicle ahead is shorter than the set time
interval.

Distance Alert is active at speeds above 30 km/h
(20 mph) and only reacts for vehicles ahead mov-
ing in the same direction as your vehicle. No dis-
tance information is provided for oncoming, slow-
moving or stationary vehicles.

Head-up display for Distance Alert (p. 293)

•

Distance Alert is only available in vehicles
that can display information on the wind-
shield with a head-up display.

•

Distance Alert is deactivated while Adap-
tive Cruise Control or Pilot Assist is
active.

WARNING

Distance Alert only reacts of the time interval

to the vehicle ahead is shorter than the preset

value – vehicle speed is not affected.

Related information

•

•

Activating/deactivating Distance Alert
(p. 294)

•

Setting a time interval for Distance Alert
(p. 294)

•

Distance Alert limitations (p. 295)

Head-up display for Distance Alert

In vehicles equipped with a head-up display*, a
symbol will be displayed on the windshield as
long as the time interval to the vehicle ahead is
shorter than the set time interval.

Distance Alert warning symbol on the windshield

For this to be possible, however, the

Show

Driver Support

function must be activated

under Settings in the center display's menus (see
"Head-up display" for instructions).

The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.

Distance Alert

The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.

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

DRIVER SUPPORT

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294

Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.

Related information

•

Head-up display* (p. 144)

•

Activating/deactivating Distance
Alert

Distance Alert can be turned off.

On/Off

Press the

Distance Alert

but-

ton in the center display's
Function view.

•

GREEN button indicator light - Distance Alert
is on.

•

GRAY button indicator light - Distance Alert
is off.

Distance Alert is automatically activated each
time the engine is started.

Related information

•

Setting a time interval for Distance
Alert

The Distance Alert function can be set to differ-
ent time intervals.

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

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

The same symbol appears when the Adaptive
Cruise Control function is activated.

The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.

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Controls for setting a time interval.

Reduce the time interval

Increase the time interval

Distance indicator

–

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

rent time interval.

•

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

•

Only use the time intervals permitted by
local traffic regulations.

•

The set time interval is also used by the
Adaptive Cruise Control and Pilot Assist
functions.

WARNING

•

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

•

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

Related information

•

Distance Alert limitations

Distance Alert functionality may be reduced in
certain situations.

The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.

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296

WARNING

•

The radar sensor has a limited field of
vision. In some situations, it may detect a
vehicle later than expected or not detect
other vehicles at all.

•

The radar sensor cannot cover all driving
situations and traffic, weather and road
conditions.

•

The driver is responsible for maintaining a
safe distance and speed and must inter-
vene if the various driver support systems
do not maintain a suitable speed or suita-
ble distance to the vehicle ahead.

•

Maintenance of radar sensor components
may only be performed by a trained and
qualified Volvo technician.

•

Strong sunlight, reflections from the road
surface, strong lighting contrasts or using
sunglasses may make the warning light in
the windshield difficult to see. Poor
weather or winding roads can affect the
radar sensor's capacity to detect vehicles
ahead.

•

A vehicle's size (e.g., a motorcycle) can
also affect the radar sensor's capacity to
detect another vehicle. This may result in
the warning light illuminating at a shorter
distance than the one that has been set
or not illuminating at all.

•

High speeds may also result in the warn-
ing light illuminating at a shorter distance
than the one that has been set due to
limitations in the radar sensor's range.

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

Related information

•

Radar sensor limitations (p. 329)

•

Adaptive Cruise Control*

Adaptive Cruise Control (ACC

) helps the

driver maintain a constant speed with a set time
interval to the vehicle ahead.

Adaptive Cruise Control helps provide a more
relaxed driving experience on long trips on high-
ways or long, straight roads with even traffic
flows.

The camera/radar sensor measures the distance to the
vehicle ahead

The driver sets a speed and a time interval to the
vehicle ahead. If the camera/radar sensor detects
a slower-moving vehicle ahead, your vehicle's
speed will be automatically adapted according to
the set time interval to that vehicle. When there
are no longer slower-moving vehicles ahead, the
vehicle will return to the set speed.

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297

WARNING

•

The Adaptive Cruise Control 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.

•

Adaptive Cruise Control is not a substi-
tute for the driver's attention and judg-
ment. 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.

Depending on market, this function may be
either Standard or Optional.

Adaptive Cruise Control regulates speed by
accelerating and braking. It is normal for the

brakes to emit a slight sound when they are
being used to adjust speed.

Adaptive Cruise Control always attempts to regu-
late speed smoothly. The driver must apply the
brakes in situations requiring immediate braking.
For example, when there are great differences in
speed between vehicles or if the vehicle ahead
brakes suddenly. Due to limitations in the radar
sensor, braking may occur unexpectedly or not at
all.

Adaptive Cruise Control is designed to follow a
vehicle ahead in the same lane and maintain a
time interval to that vehicle set by the driver. If the
radar sensor does not detect a vehicle ahead, it
will instead maintain the speed set by the driver.
This will also happen if the speed of the vehicle
ahead exceeds the set speed for your vehicle.

•

Adaptive Cruise Control can follow another
vehicle at speeds from a standstill up to
200 km/h (125 mph).

WARNING

•

Adaptive Cruise Control is not a collision
avoidance system. The driver is always
responsible and must intervene if the sys-
tem fails to detect a vehicle ahead.

•

Adaptive Cruise Control does not brake
for people or animals and does not brake
for small vehicles, such as bikes and
motorcycles. Similarly, it does not brake
for low trailers, oncoming, slow-moving or
stationary vehicles and objects.

•

Do not use Adaptive Cruise Control in
demanding situations, such as in city traf-
fic, at intersections, 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 on/off ramps.

CAUTION

Maintenance of Adaptive Cruise Control com-
ponents may only be performed by a work-
shop – an authorized Volvo workshop is rec-
ommended.

Adaptive Cruise Control

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

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Overview

Controls

Function buttons and symbols

: Activates Adaptive Cruise Control from

standby mode and resumes the set speed

: Increases the set speed

: From standby mode - activates the

Adaptive Cruise Control and stores the cur-
rent speed

: From active mode - deactivates/

switches the Adaptive Cruise Control to
standby mode

: Reduces the set speed

Increases the time interval to the vehicle
ahead

Reduces the time interval to the vehicle
ahead
Target vehicle indicator: ACC has detected
and is following a target vehicle using the set
time interval
Symbol for time interval to the vehicle ahead

Adaptive Cruise Control and collision warning
(p. 299)

In vehicles equipped with Adaptive Cruise
Control*, it is possible to switch between
cruise control and Adaptive Cruise Control –
see the heading "Switching between CC and
ACC".

Instrument panel

Speed indicators

Set speed

Speed of the vehicle ahead.

The current speed of your vehicle.

See "Adaptive Cruise Control symbols and mes-
sages" for examples of different combinations of
symbols depending on the traffic situation.

Related information

•

•

Head-up display for Adaptive Cruise Control
with collision warning (p. 300)

•

Activating and starting Adaptive Cruise Con-
trol (p. 300)

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

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299

•

Managing Adaptive Cruise Control speed
(p. 301)

•

Setting Adaptive Cruise Control time inter-
vals (p. 302)

•

Deactivating/reactivating Adaptive Cruise
Control (p. 303)

•

Passing assistance with Adaptive Cruise
Control (p. 305)

•

Starting passing assistance with Adaptive
Cruise Control (p. 306)

•

Limitations of passing assistance with Adap-
tive Cruise Control (p. 306)

•

Switching target vehicles with Adaptive
Cruise Control (p. 306)

•

Automatic braking with Adaptive Cruise Con-
trol (p. 307)

•

Adaptive Cruise Control limitations (p. 308)

•

Switching between Cruise Control and Adap-
tive Cruise Control (p. 309)

•

Symbols and messages for Adaptive Cruise
Control (p. 310)

Adaptive Cruise Control and

collision warning

Adaptive Cruise Control can alert the driver if the
distance to the vehicle ahead suddenly decrea-
ses to an unsafe distance.

Collision warning audible signal and symbol

Acoustic collision warning signal

Collision warning symbol

Camera/radar sensor distance monitoring

Adaptive Cruise Control utilizes approx. 40% of
the vehicle's braking capacity. If a situation
requires more braking force than the Adaptive
Cruise Control can provide, and if the driver does
not apply the brakes, a warning light and audible

warning signal will be activated to alert the driver
that immediate action is required.

WARNING

Adaptive Cruise Control only issues a warning

for vehicles detected by its radar unit – thus, a

warning may come after a delay or not at all.

•

Never wait for a warning. Apply the
brakes when necessary.

Related information

•

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

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Head-up display for Adaptive Cruise

Control with collision warning

In vehicles equipped with a head-up display*, a
flashing warning symbol will be displayed on the
windshield.

Collision warning symbol on the windshield

Related information

•

Head-up display* (p. 144)

•

Activating and starting Adaptive

Cruise Control

Adaptive Cruise Control (ACC

) must first be

activated and then started before it can regulate
speed and distance.

Putting Adaptive Cruise Control in
standby mode

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

Adaptive Cruise Control is in standby mode each
time the engine is started. To put ACC in standby
mode from active mode:

–

Press

◀ (2) or ▶ (3) on the steering wheel

keypad and scroll to the

(4) function.

> The symbol will appear and Adaptive

Cruise Control will go into standby mode.

Starting/activating Adaptive Cruise
Control

To start ACC:

•

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

•

There must be a vehicle ahead (target vehi-
cle) within a reasonable distance or your
vehicle's current speed must be at least
15 km/h (9 mph).

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

–

With the

(4) function displayed, press

(1) on the steering wheel keypad.

> Adaptive Cruise Control will start and the

current speed will be stored, which will be
shown by numbers in the center of the
speedometer.

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

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ACC will only regulate the time
interval to the vehicle ahead
when the distance symbol
shows two vehicles.

A speed interval will be marked
at the same time.

The higher speed is the set
speed for your vehicle and the
lower speed is the speed of the
vehicle ahead (target vehicle).

Related information

•

Managing Adaptive Cruise Control

speed

Adaptive Cruise Control (ACC

) can be set to

various speeds.

Setting/changing set speed

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

: Increases the set speed.

: Reduces the set speed.

Set speed.

–

Change a set speed by pressing the

(1)

(2) buttons briefly or by pressing and

holding them:

•

Press briefly: Press briefly: each press
changes the speed in +/- 5 mph
(+/- 5 km/h) increments.

•

Press and hold: release the button when
the set speed indicator (3) has moved to
the desired speed.

•

The most recently set speed will be stored.

If speed is increased by depressing the accelera-
tor pedal while pressing the

(1) button on

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

Adaptive Cruise Control

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Automatic transmission

Adaptive Cruise Control can follow another vehi-
cle at speeds from a standstill up to 200 km/h
(125 mph).

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

The highest possible speed that can be set is
200 km/h (125 mph).

Related information

•

Setting Adaptive Cruise Control

time intervals

Adaptive Cruise Control (ACC

) can be set to

various time intervals to the vehicle ahead.

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

The same symbol appears when the Distance
Alert function is activated.