2018 VOLVO XC90 TWIN ENGINE tow

||DRIVER SUPPORT
* Option/accessory.
304 To reactivate ACC from standby mode:
– Press the button on the steering wheel
(1).
>

Speed will be set to the most recently
stored speed.
WARNING A noticeable increase in speed may follow
when the speed is resumed with the
steering wheel button.
Related information
•
Adaptive Cruise Control* (p. 295) Passing assistance with Adaptive
Cruise Control
Adaptive Cruise Control (ACC
51
) can assist the
driver when passing other vehicles.
How passing assistance worksWhen ACC is following another vehicle and you
indicate that you intend to pass that vehicle by
using the turn signal 52
, Adaptive Cruise Control
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
•
Adaptive Cruise Control* (p. 295) Starting passing assistance with
Adaptive Cruise Control
Requirements for passing assistanceIn 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 ACC must be high
enough to safely pass another vehicle.
Starting parking assistanceTo start passing assistance:
–
Turn on the left turn signal.
>

Passing assistance will start.
Related information
• Adaptive Cruise Control* (p. 295) 51
Adaptive Cruise Control
52 Only the left-hand turn signal for left-hand drive vehicles, or right-ha\
nd turn signal for right-hand drive vehicles.

DRIVER SUPPORT
}}
* Option/accessory. 307
Adaptive Cruise Control limitations
Adaptive Cruise Control (ACC 56
) may have lim-
ited functionality in certain situations.
Steep roads and/or heavy loadsAdaptive Cruise Control is primarily intended to
be driven on flat roads. The function may not be
able to maintain 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 Adaptive Cruise Control if the
vehicle is carrying a heavy load or towing a
trailer.
Other limitations
•
The
Off Road drive mode cannot be
selected if Adaptive Cruise Control is acti-
vated.
NOTE The function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit,
which has some general limitations – see the
section "Radar unit limitations".
Related information
•
Adaptive Cruise Control* (p. 295) Switching between Cruise Control
and Adaptive Cruise Control
In vehicles equipped with Adaptive Cruise Con-
trol (ACC 57
), the driver can switch between
Cruise Control (CC 58
) and ACC.
A symbol in the instrument panel indicates which
cruise control system is active CC
ACC A A
Cruise control

Adaptive Cruise Control A
WHITE symbol: The function is active. GRAY symbol: Standby
mode
Switching from ACC to CCTo do so:
1. Press the button on the steering wheel
keypad to put Adaptive Cruise Control in
standby mode. 56
Adaptive Cruise Control

DRIVER SUPPORT
}}
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.

DRIVER SUPPORT
321
Passing assistance with Pilot Assist
Pilot Assist can assist the driver when passing
other vehicles.
How passing assistance worksWhen Pilot Assist is following another vehicle
and you indicate that you intend to pass that
vehicle by using the turn signal 67
, 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. 311) Starting passing assistance with
Pilot Assist
Requirements for passing assistanceIn 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 assistanceTo start passing assistance:
–
Turn on the left turn signal.
>

Passing assistance will start.
Related information
• Pilot Assist (p. 311) 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. 311) 67
Only the left-hand turn signal for left-hand drive vehicles, or right-ha\
nd turn signal for right-hand drive vehicles.

||DRIVER SUPPORT
* Option/accessory.
324 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.
• 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.
Steep roads and/or heavy loadsPilot 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 camera unit,
which has some general limitations – see the
section "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit,
which has some general limitations – see the
section "Radar unit limitations".
Related information
•
Pilot Assist (p. 311)
• Speed-dependent steering wheel resistance
(p. 272) 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
328
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 t\
he cam-
era's casing cleaned. An authorized Volvo workshop is recommended.
NOTEKeep the windshield in front of the camera
and radar unit clean.
Vehicle speedThe 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 visionThe 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 inbetween 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
* Option/accessory.
350
Related information
• BLIS* (p. 348) BLIS limitations
BLIS 82
functionality may be reduced in certain
situations. Keep this area clean (on both the left and right sides of
the vehicle)
83
.
Examples of limitations:
• Dirt, ice and snow covering the sensors may
reduce functionality and prevent the system
from providing warnings.
• The BLIS function is automatically deacti-
vated if a trailer, bicycle holder or similar is
connected to the vehicle's electrical system.
• For BLIS to function optimally, bicycle hold-
ers, luggage racks or similar should not be
mounted on the vehicle's towbar.WARNING •
BLIS does not work in sharp curves.
• BLIS does not work when the vehicle is
being reversed.
Related information
•
BLIS* (p. 348) 80
Blind Spot Information
81 Note: This illustration is general and details may vary depending on mod\
el.
82 Blind Spot Information
83 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.355
Examples of further limitations
•Dirt, ice and snow covering the sensors may
reduce functionality and prevent the system
from providing warnings. For additional infor-
mation, see the section "Recommended
maintenance for Cross Traffic Alert".
• CTA is automatically deactivated if a trailer,
bicycle holder or similar is connected to the
vehicle's electrical system.
• For CTA to function optimally, bicycle hold-
ers, luggage racks or similar should not be
mounted on the vehicle's towbar.
Related information
•
Cross Traffic Alert* (p. 353) Recommended maintenance for
Cross Traffic Alert
•
For optimal performance, it is important to
keep the areas in front of the sensors clean.
• Do not attach any objects, tape or decals to
the surface of the sensors. Keep this area clean (on both the left and right sides of
the vehicle)
92
.
The CTA sensors are located on the inside of
each of the rear fenders/bumpers and are also
used by the BLIS 93
and Rear Collision Warning
functions.
CAUTION Repair of BLIS and CTA components or
repainting of the bumper may only be per-
formed by a workshop – an authorized Volvo
workshop is recommended.
Related information
•
Cross Traffic Alert* (p. 353)
• BLIS* (p. 348)
• Rear Collision Warning (p. 347) 92
Note: This illustration is general and details may vary depending on mod\
el.
93 Blind Spot Information