Content .. 17 18 19 20 ..

Volvo XC90 Twin Engine (2019 year). Manual - part 19

DRIVER SUPPORT

322

Managing Pilot Assist speed

Pilot Assist 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.

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.

Automatic transmission

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

The lowest speed that can be set for Pilot Assist
is 30 km/h (20 mph). When following 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

•

Pilot Assist (p. 316)

DRIVER SUPPORT

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* Option/accessory.

323

Setting a time interval for Pilot

Assist

Pilot Assist can be set to different 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.

NOTE

When the symbol in the instrument panel
shows a vehicle and a steering wheel, Pilot
Assist follows a vehicle ahead at a preset
time interval.

When only a steering wheel is shown, there is
no vehicle ahead within a reasonable dis-
tance.

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.

In order to follow the vehicle ahead as smoothly
as possible, Pilot Assist allows the time interval to
vary considerably in certain situations. For exam-
ple, at low speeds and short distances to the
vehicle ahead, Pilot Assist increases the time
interval slightly.

NOTE

•

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.

•

If Pilot Assist does not seem to respond
with a speed increase when activated, it
may be because the time interval to the
vehicle ahead is shorter than the set time
interval.

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.

Setting how Pilot Assist should
maintain distance* to the vehicle ahead

The driver can choose different drive modes to
determine how Pilot Assist should maintain a
time interval to the vehicle ahead. Settings are
made using the DRIVE MODE controls.

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

DRIVER SUPPORT

324

Select one of the following:

•

Eco

- Pilot Assist will focus on providing

optimal fuel economy, which will increase the
time interval to the vehicle ahead.

•

Comfort

- Pilot Assist will focus on following

the set time interval to the vehicle ahead as
smoothly as possible.

•

Dynamic

- Pilot Assist will focus on follow-

ing the set time interval to the vehicle ahead
more exactly, which could mean faster accel-
eration and heavier braking.

For more information, see "Drive modes".

Related information

•

Pilot Assist (p. 316)

•

Drive modes (p. 454)

•

Managing Cruise Control speed (p. 293)

Deactivating/reactivating Pilot

Assist

Pilot Assist can be temporarily put into standby
mode and then reactivated.

Deactivating and putting Pilot Assist in
standby mode

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

To temporarily deactivate Pilot Assist and put it in
standby mode:

–

Press the

button on the steering wheel

(2).
> Pilot Assist goes into standby mode - the

symbol (8) in the instrument panel
changes color from WHITE to GRAY and
the set speed in the center of the speed-
ometer will change from BEIGE to GRAY.

...or...

–

Press the

◀ button on the steering wheel (3).

> Pilot Assist is turned off and Adaptive

Cruise Control will go into active mode.

WARNING

•

With Pilot Assist in standby mode, the
driver must intervene and steer and regu-
late both speed and distance to the vehi-
cle ahead.

•

If the vehicle comes too close to a vehicle
ahead when Pilot Assist is in standby
mode, the driver is instead warned of the
short distance by the Distance Alert func-
tion.

DRIVER SUPPORT

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325

Standby mode due to action by the driver

Pilot Assist will be temporarily deactivated and
put in standby mode if:

•

the brakes are applied.

•

the gear selector is moved to N

•

a turn signal is used for more than 1 minute.

•

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

When the turn signals are used, Pilot Assist's
steering assistance will be temporarily deacti-
vated. When the turn signal is switched off, steer-
ing assistance will be automatically reactivated if
the traffic lane's side markings can still be
detected.

Automatic standby mode

Pilot Assist is dependent on other systems, such
as Electronic Stability Control (ESC

). If any of

these other systems stops working, Pilot Assist
will automatically switch off.

WARNING

With automatic standby mode, the driver is

warned by an acoustic signal and a message

on the instrument panel.

•

The driver must then regulate vehicle
speed, apply the brakes if necessary, and
maintain a safe distance to other vehicles.

Adaptive Cruise Control may go into standby
mode if, e.g.:

•

the driver opens the door.

•

the brake temperature is high.

•

the driver's hands are not on the steering
wheel.

•

the parking brake is applied.

•

the engine speed (rpm) is too low/high.

•

the driver unbuckles the seat belt.

•

one or more of the wheels lose traction.

•

the camera/radar sensor is covered by snow
or heavy rain (the camera lens/radar waves
are blocked)

•

your vehicle's speed goes below 5 km/h
(3 mph) and Pilot Assist cannot determine if
the vehicle ahead is stationary or if it is
another object, e.g. a speed bump.

•

your vehicle's speed goes under 5 km/h
(3 mph) and the vehicle ahead turns so that
Pilot Assist no longer has a vehicle to follow.

Reactivating Pilot Assist from standby
mode

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

To reactivate Pilot Assist:

–

Press the

button on the steering wheel

(1).
> Speed will be set to the most recently

stored speed.

Electronic Stability Control

DRIVER SUPPORT

326

WARNING

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

steering wheel button.

Related information

•

Pilot Assist (p. 316)

Passing assistance with Pilot Assist

Pilot Assist can assist the driver when passing
other vehicles.

How passing assistance works

When Pilot Assist is following another vehicle
and you indicate that you intend to pass that
vehicle by using the turn signal

, Pilot Assist will

begin accelerating toward the vehicle ahead
before your vehicle has moved into the passing
lane.

The function will then delay a speed reduction to
avoid early braking as your vehicle approaches a
slower-moving vehicle.

The function remains active until your vehicle has
passed the other vehicle.

WARNING

Please note that this function can be acti-

vated in more situations than just passing

another vehicle, such as when a direction indi-

cator is used to indicate a lane change or

before exiting to another road – the vehicle

will then briefly accelerate.

Related information

•

Pilot Assist (p. 316)

•

Starting passing assistance with Pilot Assist
(p. 327)

•

Passing assistance with Pilot Assist limita-
tions (p. 327)

Only the left-hand turn signal for left-hand drive vehicles, or right-hand turn signal for right-hand drive vehicles.

DRIVER SUPPORT

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327

Starting passing assistance with

Pilot Assist

Several conditions must be met for passing
assistance to be possible.

In order to activate passing assistance:

•

your vehicle must be following a vehicle
ahead (target vehicle)

•

your vehicle's current speed must be
at least 70 km/h (43 mph)

•

the set speed for Pilot Assist must be high
enough to safely pass another vehicle.

Starting parking assistance

To start passing assistance:

–

Turn on the left turn signal.
> Passing assistance will start.

Related information

•

Pilot Assist (p. 316)

•

Passing assistance with Pilot Assist (p. 326)

Passing assistance with Pilot Assist

limitations

Passing assistance functionality may be reduced
in certain situations.

WARNING

The driver should be aware that if conditions

suddenly change when using Parking Assis-

tance, the function may implement an unde-

sired acceleration in certain conditions.
Some situations should be avoided, e.g. if:

•

the vehicle is approaching an exit in the
same direction as passing would normally
occur

•

the vehicle ahead slows before your vehi-
cle has had time to switch to the passing
lane

•

traffic in the passing lane slows down

•

a vehicle for right-hand traffic is driven in
a country with left-hand traffic (or vice
versa).

Situations of this type can be avoided by tempo-
rarily putting Pilot Assist in standby mode.

Related information

•

Pilot Assist (p. 316)

•

Passing assistance with Pilot Assist (p. 326)

Switching target vehicles with Pilot

Assist

At certain speeds, models with automatic trans-
missions and Pilot Assist can switch target vehi-
cles.

Switching target vehicles

If the target vehicle ahead turns suddenly, there may be
stationary traffic ahead.

When Pilot Assist is actively following another
vehicle at speeds under 30 km/h (20 mph) and
switches targets from a moving vehicle to a sta-
tionary vehicle, Pilot Assist will brake for the sta-
tionary vehicle.

DRIVER SUPPORT

328

WARNING

When Pilot Assist follows another vehicle at

speeds over approx. 30 km/h (20 mph) and

changes target vehicle – from a moving vehi-

cle to a stationary one – Pilot Assist will

ignore the stationary vehicle and instead

accelerate to the stored speed.

•

The driver must then intervene and apply
the brakes.

Automatic standby mode when switching
targets

Pilot Assist disengages and goes into standby
mode if:

•

your vehicle's speed goes below 5 km/h
(3 mph) and Pilot Assist cannot determine if
the target object is a stationary vehicle or
another object, e.g. a speed bump.

•

your vehicle's speed goes under 5 km/h
(3 mph) and the vehicle ahead turns so that
Pilot Assist no longer has a vehicle to follow.

Related information

•

Pilot Assist (p. 316)

Auto-hold braking with Pilot Assist

Pilot Assist has a special braking function in
slow traffic and at a standstill.

Braking function in slow traffic and at a
standstill

In slow-moving, stop-and-go traffic or when stop-
ped at a traffic light, driving will resume automati-
cally if the vehicle is stopped for less than
approx. 3 seconds. If it takes more than 3 sec-
onds for the vehicle ahead to begin moving again,
Pilot Assist will go into standby mode and the
Auto-hold brake function will activate.

–

Pilot Assist can be reactivated by:

•

Pressing the

button on the steering

wheel keypad.

•

Pressing the accelerator pedal.

> Pilot Assist will resume following the vehi-

cle ahead if it begins to move within
approx. 6 seconds.

NOTE

Pilot Assist can keep the vehicle stationary
for no more than 5 minutes – after that time
the parking brake is applied and the function
is deactivated.

The parking brake must be released before
Pilot Assist can be reactivated.

Deactivation of the Auto-hold brake function

In certain situations, Auto-hold will be deactivated
when the vehicle is at a standstill and Pilot Assist
will go into standby mode. This means that the
brakes will be released and the vehicle could
begin to roll. The driver must actively apply the
brakes to keep the vehicle stationary.

This can occur if:

•

the driver depresses the brake pedal

•

the parking brake is applied

•

the gear selector is moved to the P, N or R
positions

•

the driver puts Pilot Assist in standby mode.

Auto Activate Parking Brake

In certain situations, the parking brake will be
applied to keep the vehicle at a standstill.

This occurs if Pilot Assist is keeping the vehicle
stationary using the brakes and:

•

the driver opens the door or unbuckles
his/her seat belt

•

Pilot Assist has kept the vehicle at a stand-
still for more than approx. 5 minutes

•

the brakes overheat

•

the driver switches off the engine manually.

Related information

•

Pilot Assist (p. 316)

DRIVER SUPPORT

}}

* Option/accessory.

329

Pilot Assist limitations

Pilot Assist functionality may be reduced in cer-
tain situations.

Pilot Assist is a driver support function designed
to simplify driving and assist the driver in many
situations. However, the driver is always responsi-
ble for maintaining a suitable distance to vehicles
or objects around it and ensuring that the vehicle
is correctly positioned in the traffic lane.

WARNING

In some situations, Pilot Assist may have trou-

ble helping the driver properly or may be

deactivated automatically – we advise against

using Pilot Assist in such cases. Examples of

such situations include:

•

the lane markings are worn, missing or
cross each other.

•

lane division is unclear, for example, when
the lanes divide or merge or at exits or
when there are multiple sets of markings.

•

edges or other lines than lane markings
are present on or near the road, e.g.
curbs, joints or repairs to the road sur-
face, edges of barriers, roadside edges or
strong shadows.

•

the lane is narrow or winding.

•

the lane contains ridges or holes.

•

weather conditions are poor, e.g. rain,
snow or fog or slush or reduced visibility
with poor light conditions, backlighting,
wet road surface, etc.

The driver should also note that Pilot Assist

has the following limitations:

•

High curbs, roadside barriers, temporary
obstacles (traffic cones, safety barriers,
etc.) are not detected. Alternatively, they
may be detected incorrectly as lane mark-
ings, with a subsequent risk of contact
between the vehicle and such obstacles.

The driver is responsible for ensuring that
the vehicle maintains a suitable distance
from such obstacles.

•

The camera and radar sensors do not
have the capacity to detect all oncoming
objects and obstacles in traffic environ-
ments, e.g. potholes, stationary obstacles
or objects that completely or partially
block the route.

•

Pilot Assist does not "see" pedestrians,
animals, etc.

•

The recommended steering input is lim-
ited in force, which means that it cannot
always help the driver to steer and keep
the vehicle within the lane.

•

In vehicles equipped with Sensus
Navigation*, the function is able to use
information from map data, which could
cause variations in performance.

•

Pilot Assist is switched off if the power
steering is working with reduced power -
e.g. during cooling due to overheating
(see section "Speed-dependent steering
force").

The driver can always correct or adjust steering
assistance provided by Pilot Assist by turning the
steering wheel to the desired position.

DRIVER SUPPORT

* Option/accessory.

330

Steep roads and/or heavy loads

Pilot Assist is primarily intended to be driven on
flat roads. The function may not be able to main-
tain the correct time interval to the vehicle ahead
when driving down steep hills. The driver should
be extra attentive and prepared to apply the
brakes.

•

Do not use Pilot Assist if the vehicle is carry-
ing a heavy load or towing a trailer.

NOTE

Pilot Assist cannot be activated if a trailer,
bike carrier or similar is connected to the
vehicle electrical system.

Other limitations

•

The

Off Road

drive mode cannot be

selected when Pilot Assist is activated.

NOTE

The function uses the vehicle's combined
camera and radar unit, which has certain gen-
eral limitations; see sections "Camera limita-
tions" and "Radar sensor limitations".

Related information

•

Pilot Assist (p. 316)

•

Speed-dependent steering wheel resistance
(p. 278)

•

Camera limitations (p. 338)

•

Radar sensor limitations (p. 333)

Pilot Assist* symbols and messages

A number of symbols and messages relating to
Pilot Assist may be displayed in the instrument
panel and/or the head-up display*.

DRIVER SUPPORT

}}

331

Several examples

are provided below.

The previous illustration

shows that Pilot Assist

is set to maintain a speed of 110 km/h (68 mph)
and that there is no target vehicle ahead to fol-
low.

Pilot Assist will not provide any steering assis-
tance because it cannot detect the lane's side
marking lines.

The previous illustration

shows that Pilot Assist

is set to maintain a speed of 110 km/h (68 mph)
and is following a target vehicle ahead that is
traveling at the same speed.

Pilot Assist will not provide any steering assis-
tance because it cannot detect the lane's side
marking lines.

The previous illustration

shows that Pilot Assist

is set to maintain a speed of 110 km/h (68 mph)
and is following a target vehicle ahead that is
traveling at the same speed.

In this example, Pilot Assist will also provide
steering assistance because it can detect the
lane's side marking lines.

In the following illustration, Road Sign Information (RSI) indicates that the maximum permitted speed is 130 km/h (80 mph).

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

DRIVER SUPPORT

* Option/accessory.

332

The previous illustration

shows that Pilot Assist

is set to maintain a speed of 110 km/h (68 mph)
and that there is no target vehicle ahead to fol-
low.

Pilot Assist will provide steering assistance
because it can detect the lane's side marking
lines.

Related information

•

Pilot Assist (p. 316)

Radar sensor

The radar sensor is used by several driver sup-
port systems to detect other vehicles.

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

The radar sensor is used by the following func-
tions:

•

Distance Alert*

•

Adaptive Cruise Control*

•

Lane Keeping Aid

•

Pilot Assist*

•

City Safety

Any modifications to the radar sensor may make
its use illegal.

Related information

•

Radar sensor limitations (p. 333)

•

Radar sensor type approval (p. 336)

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

DRIVER SUPPORT

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333

Radar sensor limitations

The radar sensor used by several of the driver
support functions has certain limitations, which
also affect the functions using the radar sensor.

Obstructed camera

The area marked in the illustration must be kept free of
decals, objects, solar film, etc.

The radar sensor is located on the upper interior
section of the windshield along with the camera.

CAUTION

Do not place, affix or mount anything on the
inside or outside of the windshield, or in front
of or around the camera and radar unit – this
could disrupt camera and radar-based func-
tions.

It could cause functions to be reduced, deac-
tivated completely or produce an incorrect
function response.

If this symbol and the message
"

Windscreen sensor

Sensor

blocked, see Owner's manual

" is

displayed in the instrument panel, it

means that the camera and radar sensor are
unable to detect other vehicles, cyclists, pedes-
trians and large animals in front of the vehicle
and that the vehicle's camera and radar-based
functions may be obstructed, reduced, completely
disabled or providing inaccurate responses.

The following table shows some of the situations that can cause the message to be displayed, and suggested actions:

Cause

Action

The area of the windshield in front of the camera/radar sensor is dirty or
covered by ice or snow.

Clean the windshield in front of the camera/radar sensor and remove dirt, ice
and snow.

Thick fog, heavy rain or snow is blocking the radar signals or the camera's
range of visibility.

No action. Heavy precipitation may sometimes prevent the camera/radar sensor
from functioning.

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

DRIVER SUPPORT

334

Cause

Action

Water or snow is spraying/swirling up and blocking the radar signals or
the camera's range of visibility.

No action. Very wet or snow-covered roads may sometimes prevent the cam-
era/radar sensor from functioning.

There is dirt between the inside of the windshield and the camera/radar
sensor.

Consult a workshop to have the area of the windshield on the inside of the cam-
era's casing cleaned. An authorized Volvo workshop is recommended.

NOTE

Keep the windshield in front of the camera
and radar unit clean.

Vehicle speed

The radar sensor's ability to detect a vehicle
ahead is significantly reduced if:

•

the speed of the vehicle ahead differs greatly
from your vehicle's speed

Limited field of vision

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

The radar sensor's field of vision.

The radar sensor's detection of vehicles very
close to your vehicle may be delayed in cer-
tain situations, e.g. if a vehicle pulls in

between your vehicle and the vehicle directly
ahead.
Small vehicles, such as motorcycles, or vehi-
cles that are not driving in the center of the
lane may remain undetected.
In curves, the radar may detect the wrong
vehicle or lose sight of a target vehicle.

Low trailers

Low trailer in the radar shadow.

Low trailers may also be difficult or even impossi-
ble for the radar to detect. The driver should be
extra alert when driving behind vehicles towing
low trailers when Adaptive Cruise Control or Pilot
Assist is activated.

DRIVER SUPPORT

335

High temperatures

If the temperature in the passenger compartment
is very high, the camera/radar sensor will switch
off temporarily for approx. 15 minutes after the
engine is started to protect its electronic compo-
nents. When the temperature has cooled suffi-
ciently, the camera/radar sensor will automati-
cally restart.

Damaged windshield

CAUTION

If there are cracks, scratches or stone chips
on the windshield in front of any of the cam-
era and radar unit "windows" and this covers
an area of about 0.5 × 3.0 mm
(0.02 × 0.12 in.) or more, contact a workshop
to have the windshield replaced – an author-
ized Volvo workshop is recommended.

Failure to take action could result in reduced
performance for the driver support systems
that use the camera and radar unit.

It could cause functions to be reduced, deac-
tivated completely or produce an incorrect
function response.

To avoid the risk of loss of function, malfunc-
tion or reduced function of the driver support
systems that use the radar unit, the following
also apply:

•

Volvo advises against repairing cracks,
scratches or stone chips in the area in
front of the camera and radar unit – the
entire windshield should instead be
replaced.

•

Before replacing the windshield, contact
an authorized Volvo workshop to verify
that the right windshield has been
ordered and installed.

•

The same type of windshield wipers or
wipers approved by Volvo should be used
for replacement.

CAUTION

If the windshield is replaced, the camera and
radar unit must be recalibrated by a workshop
to help ensure proper functioning of all of the
vehicle's camera and radar-based systems –
an authorized Volvo workshop is recom-
mended.

Related information

•

Radar sensor (p. 332)

DRIVER SUPPORT

336

Recommended maintenance for the

radar sensor

In order for the camera/radar sensor to function
properly, the area of the windshield in front of the
unit must be kept free of dirt, ice, snow, etc. and
should be washed regularly with water and car
washing detergent.

NOTE

Dirt, ice and snow covering the camera and
radar unit reduce their function and can make
measurement impossible.

It could cause functions to be reduced, deac-
tivated completely or produce an incorrect
function response.

Related information

•

Radar sensor (p. 332)

Radar sensor type approval

The type approval for the vehicle radar sensor in
the ACC

, PA

and BLIS

functions can be

read here.

ACC, PA and BLIS

USA & Canada:

FCC ID: L2C0054TR IC: 3432A-0054TR

FCC ID: L2C0055TR IC: 3432A-0055TR

This device complies with Part 15 of the FCC
Rules and with Industry Canada license-exempt
RSS standard(s).

Operation is subject to the following two
conditions:

(1) This device may not cause harmful
interference, and

(2) This device must accept any interference
received, including interference that may cause
undesired operation.

Cet appareil est conforme aux CNR d’Industrie
Canada a applicables aux appareils radio
exempts de licence. L’exploitation est autorisée à
condition que l'appareil ne produise pas de
brouillage préjudiciable et qu'il accepte tout
brouillage, même celui susceptible d'en
compromettre le fonctionnement.

Note: Changes or modifications not expressively
approved by the party responsible for compliance
could void the user's authority to operate the
equipment. The term “IC:” before the radio
certification number only signifies that Industry
Canada technical specifications were met.

Note: This equipment complies with radiation
exposure limits set forth for an uncontrolled
environment. This equipment should be installed
and operated with minimum distance of 20 cm
between the radiator and your body.

Related information

•

Radar sensor (p. 332)

Adaptive Cruise Control

Pilot Assist

Blind Spot Information

DRIVER SUPPORT

* Option/accessory.

337

Camera

The camera is used by several driver support
systems to e.g. detect lane marker lines or road
signs.

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

The camera is used by the following functions:

•

Adaptive Cruise Control*

•

Pilot Assist*

•

Lane Keeping Aid*

•

Steering assistance at risk of collision

•

City Safety

•

Driver Alert Control*

•

Road Sign Information*

•

Active high beams*

Related information

•

Camera limitations (p. 338)

•

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