VOLVO XC90 TWIN ENGINE 2018 Owners Manual

DRIVER SUPPORT
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* Option/accessory. 309
Symbols and messages for
Adaptive Cruise Control
A number of symbols and messages relating to
Adaptive Cruise Control (ACC 59
) may be dis-
played in the instrument panel and/or the head-
up display*.
Several examples 60
are provided below. The previous illustration
61
shows that Adaptive
Cruise Control is set to maintain a speed of
110 km/h (68 mph) and that there is no target
vehicle ahead to follow. The previous illustration
61
shows that Adaptive
Cruise Control is set to maintain a speed of
110 km/h (68 mph) and is following a target vehicle ahead, which is traveling at the same
speed.
59
Adaptive Cruise Control
60 In the following illustration, Road Sign Information (RSI) indicates t\
hat the maximum permitted speed is 130 km/h (80 mph).
61 Note: This illustration is general and details may vary depending on mod\
el.

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* Option/accessory.
310 Symbol
Message MeaningThe symbol is WHITE.
The vehicle is maintaining the set speed.Adaptive cruise
Unavailable
The symbol is GRAY. Adaptive Cruise Control is in standby mode.Adaptive cruise
Service required
The symbol is GRAY. The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is
recommended. Windscreen sensor
Sensor blocked, see Owner's manual
Clean the windshield in front of the camera and radar sensors.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
• Adaptive Cruise Control* (p. 295)

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311
Pilot Assist
Pilot Assist helps the driver keep the vehicle in
the current traffic lane by providing steering
assistance and maintaining an even speed and a
set time interval to the vehicle ahead.
How Pilot Assist worksThe Pilot Assist function is primarily intended for
use on highways and other major roads where it
can help provide a more comfortable and relaxing
driving experience. The camera/radar sensor monitors the distance to the
vehicle ahead and detects lane markings
62
. Camera and radar sensor
Distance monitor
Lane marker line monitors The driver sets the desired speed and distance to
the vehicle ahead. Pilot Assist monitors the dis-
tance to the vehicle ahead and the traffic lane's
side markers using the camera and radar sensor.
The system maintains the set time interval to the
vehicle ahead by automatically adjusting your
vehicle's speed and keeps your vehicle in its lane
by providing steering assistance.
Pilot Assist's steering assistance is based on
monitoring the direction of the vehicle ahead and
the traffic lane's side marker lines. The driver can
override Pilot Assist's steering recommendations
at any time and steer in another direction, e.g. to
change lanes or avoid obstacles on the road.
If the camera/radar sensor cannot detect the
lane's side marker lines or if Pilot Assist is unable
for some other reason to clearly interpret the
lane, Pilot Assist will temporarily deactivate steer-
ing assistance until it can once again interpret
the lane markings. However, the speed and dis-
tance warnings will remain active.
WARNING
Pilot Assist is deactivated automatically and
resumes working without prior notice. The color of the steering wheel
symbol indicates the current
status of steering assistance:
• GREEN indicates that steer-
ing assistance is active
• GRAY (as shown in illustra-
tion) indicates that steering assistance is deacti-
vated. 62
Note: This illustration is general and details may vary depending on mod\
el.

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312
WARNING
•
The Pilot Assist function is supplementary
driver support intended to facilitate driv-
ing 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).
• Pilot Assist should only be used if there
are clear lane lines painted on each side
of the lane. All other use will increase the
risk of contact with nearby obstacles that
cannot be detected by the functions.
• Pilot Assist is not a substitute for the driv-
er's attention and judgment. The driver is
always responsible for ensuring the vehi-
cle is driven in a safe manner, at the
proper position within the lane, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.NOTE Depending on market, this function may be
either Standard or Optional.
Pilot Assist 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.
Pilot Assist attempts to smoothly regulate speed.
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 camera and radar sen-
sor, braking may occur unexpectedly or not at all.
Pilot Assist 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.
• Pilot Assist can follow another vehicle at
speeds from a standstill up to 200 km/h
(125 mph).
• Pilot Assist can provide steering assistance
from near-stationary speeds up to 140 km/h
(87 mph).WARNING •
Pilot Assist is not a collision avoidance
system. The driver must intervene if the
system fails to detect a vehicle ahead.
• Pilot Assist does not brake for people,
animals, objects, small vehicles (e.g.
cycles and motorcycles), low trailers as
well as oncoming, slow or stationary vehi-
cles.
• Do not use Pilot Assist in demanding sit-
uations, such as in city traffic, at intersec-
tions, on slippery surfaces, with a lot of
water or slush on the road, in heavy rain/
snow, in poor visibility, on winding roads,
on highway on- or off-ramps, or with a
trailer connected to the vehicle.
CAUTION Maintenance of the integrated components in
Pilot Assist may only be performed by a work-
shop – an authorized Volvo workshop is rec-
ommended.
In curves and forks in the roadPilot Assist is designed to interact with the driver.
The driver should never wait for steering assis-
tance from Pilot Assist, but instead should always
be ready to increase his or her own steering
efforts, particularly in curves.

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313
When the vehicle is approaching an off-ramp or a
fork in the road, the driver should steer toward
the desired lane to indicate to Pilot Assist the
desired direction of travel.
Pilot Assist strives to keep the vehicle
in the center of the lane
When Pilot Assist provides steering assistance, it
strives to position the vehicle in the center of the
lane between the lane markings. For the smooth-
est driving experience possible, the driver should
permit the vehicle to find the optimal positioning.
The driver should check that the vehicle is posi-
tioned safely in the lane and can always adjust
the vehicle's position by applying more force to
the steering wheel.
If Pilot Assist does not position the vehicle appro-
priately in the lane, the driver should turn off Pilot
Assist or switch to Adaptive Cruise Control.
Overview
Controls Function buttons and symbols
62
. : Activates Pilot Assist from standby
mode and resumes the set speed and time
interval : Increases the set speed
: From standby mode - activates Pilot
Assist and sets the current speed : From active mode - deactivates/puts
Pilot Assist in standby mode ◀: Switches from Pilot Assist to Adaptive
Cruise Control
: Reduces the set speed Increases the time interval to the vehicle
ahead
▶: Switches from Adaptive Cruise Control to
Pilot Assist
Reduces the time interval to the vehicle
ahead
Function symbol
Symbols for target vehicle and distance to
the vehicle ahead
Symbol for activated/deactivated steering
assistance
62
Note: This illustration is general and details may vary depending on mod\
el.

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314
Instrument panel Speed indicators
62
. Set speed
Speed of the vehicle ahead
The current speed of your vehicle
See "Pilot Assist symbols and messages" for
examples of different combinations of symbols
depending on the traffic situation.
Related information
• Pilot Assist and collision warning (p. 314)
• Head-up display for Pilot Assist during colli-
sion risks (p. 315)
• Activating and starting Pilot Assist (p. 315)
• Managing Pilot Assist speed (p. 316) •
Setting a time interval for Pilot Assist
(p. 317)
• Deactivating/reactivating Pilot Assist
(p. 319)
• Passing assistance with Pilot Assist (p. 321)
• Starting passing assistance with Pilot Assist
(p. 321)
• Passing assistance with Pilot Assist limita-
tions (p. 321)
• Switching target vehicles with Pilot Assist
(p. 322)
• Automatic braking with Pilot Assist (p. 322)
• Pilot Assist limitations (p. 323)
• Pilot Assist* symbols and messages (p. 324) Pilot Assist and collision warning
Collision warning Collision warning light on the windshield
63
.
Pilot Assist uses approx. 40% of the vehicle's
braking capacity. If a situation requires more
braking force than Pilot Assist 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. 62
Note: This illustration is general and details may vary depending on mod\
el.
63 The illustration is generic - details may vary according to vehicle mode\
l.

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* Option/accessory. 315
NOTEVisual 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.
WARNING
Pilot Assist only issues a warning for vehicles
detected by its camera and 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
•Pilot Assist (p. 311) Head-up display for Pilot Assist
during collision risks
In vehicles equipped with a head-up display*, a
flashing warning symbol will be displayed on the
windshield. Collision warning symbol on the windshield
64
.
NOTE 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
•
Pilot Assist (p. 311) Activating and starting Pilot Assist
Pilot Assist must first be activated and then
started before it can regulate speed and dis-
tance and provide steering assistance.
Note: This illustration is general and details may vary
depending on model.
To start Pilot Assist:
•
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). 64
Note: This illustration is general and details may vary depending on mod\
el.

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316
With Adaptive Cruise Control in standby mode:
1. Press the ▶ button on the steering wheel (6).
>
The symbol will change to Pilot
Assist in standby mode (8).
2. Press the button on the steering wheel
(2).
>

Pilot Assist will start and the current
speed will be stored, which will be shown
by numbers in the center of the speedom-
eter.
...or...
With Adaptive Cruise Control started:
– Press the ▶ button on the steering wheel (6).
>

Pilot Assist will start.
Pilot Assist's steering assis-
tance is only active when the
steering wheel symbol (2)
changes from GRAY to
GREEN.
Pilot Assist will only regulate
the time interval to the vehicle ahead when the
distance symbol shows a vehicle (1) over the
steering wheel symbol. 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).
Hands on the steering wheelPilot Assist only functions if the driver's hands
are on the steering wheel. If Pilot Assist detects
that the driver's hands are not on the steering
wheel, the driver will be instructed to actively
steer the vehicle by a text message and an audi-
ble signal.
If Pilot Assist still cannot detect the driver's
hands on the steering wheel, the function will go
into standby mode. Pilot Assist must then be
reactivated by pressing the
button on the
steering wheel.
NOTE Note that the Pilot Assist function only works
when the driver's hands are on the steering
wheel.
Related information
•
Pilot Assist (p. 311) 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

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317
–
Change a set speed by pressing the (1)
or (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 button on the
steering wheel, the vehicle's speed when the but-
ton 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. 311) 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.

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* Option/accessory.
318 Controls for setting a time interval
65
. 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. 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. 311) 65
Note: This illustration is general and details may vary depending on mod\
el.