belt VOLVO XC90 TWIN ENGINE 2018 Service Manual

SEATS AND STEERING WHEEL
* Option/accessory.
192 •
Adjusting front seat side bolster settings*
(p. 190)
• Adjusting front seat lumbar support* (p. 190) Folding the second row backrests
The second row of seats has three individual
seating positions. The backrests can be folded
down separately.
WARNING •
Adjust the seat and ensure it locks into
position before driving. Use caution when
adjusting the seat. Uncontrolled or care-
less adjustments could lead to injury.
• Long objects must always be securely
tied down to help prevent injury or dam-
age in the event of sudden braking.
• Always turn off the engine and apply the
parking brake when loading or unloading
the vehicle.
• Put the gear selector in P to help prevent
the gear selector from being inadvertently
moved.
CAUTION When the backrest is folded down, make sure
there are no objects in the rear seat, and the
seat belts are not buckled. Otherwise there is
a risk of damage to the upholstery.
CAUTION The seat cushion of the integrated child
restraint* must be in the stowed position
before the center seat backrest can be folded
down.
The armrest* in the center seat must be
raised before the seat backrest is folded
down.
If the vehicle has private locking*, the ski
hatch must be closed before the seat back-
rest is folded down.
NOTE The front seats may need to be pushed for-
ward and/or the backrest adjusted so that the
rear seat backrests can be fully lowered.
The rear seats may also need to be moved
rearward.
The seats in the second row must be in the
upright position before they can be folded
down completely. They should not be folded
down when they are tilted forward to access
the third row of seats.

CLIMATE CONTROL
* Option/accessory.229
NOTEThe air conditioning cannot be activated when
the fan speed is set to
Off.
Related information
•Climate system controls (p. 213) Activating and deactivating climate
control for the third-row seats*
The air conditioning cools and dehumidifies
incoming air as needed. Air conditioning button in the Rear climate tab in Cli-
mate view.
1. Open Climate view in the center display and select the Rear climate tab.
2. Tap 3rd row climate.
>

The air conditioning is activated/deacti-
vated and the button lights up/goes out.
NOTE The air conditioning for the third row of seats
is automatically activated if any of the third
row seat belts are buckled.
It is not possible to manually activate air con-
ditioning for the third row of seats if the main
air conditioning system is deactivated or the
climate system for the second row of seats is
deactivated.
Related information
•
Climate system controls (p. 213)

DRIVER SUPPORT
}}
* Option/accessory. 299
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
44
.
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
•
Adaptive Cruise Control* (p. 295) Activating and starting Adaptive
Cruise Control
Adaptive Cruise Control (ACC
45
) 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.
44
Note: This illustration is general and details may vary depending on mod\
el.
45 Adaptive Cruise Control

DRIVER SUPPORT
}}
303
To temporarily deactivate Adaptive Cruise Control
and put it in standby mode:
– Press the button on the steering wheel
(2).
> The symbol 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.
WARNING •
If Adaptive Cruise Control is in standby
mode, the driver must intervene and regu-
late both speed and distance to the vehicle
ahead.
• If the vehicle comes too close to a vehicle
ahead when Adaptive Cruise Control is in
standby mode, the driver is instead warned
of the short distance by the Distance Alert
function.
Standby mode due to action by the driver
Adaptive Cruise Control will be temporarily deac-
tivated 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 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 standby mode
Adaptive Cruise Control is dependent on other
systems, such as Electronic Stability Control
(ESC 50
). If any of these other systems stops
working, Adaptive Cruise Control will automati-
cally 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: • your vehicle's speed goes below 5 km/h
(3 mph) and ACC 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
ACC no longer has a vehicle to follow. •
the driver opens the door.
• the driver unbuckles the seat belt.
• the engine speed (rpm) is too low/high.
• one or more of the wheels lose traction.
• the brake temperature is high.
• the parking brake is applied.
• the camera/radar sensor is covered by snow
or heavy rain (the camera lens/radar waves
are blocked)
Reactivating Adaptive Cruise Control
from standby mode Note: This illustration is general and details may vary
depending on model.
50
Electronic Stability Control

DRIVER SUPPORT
* Option/accessory.
306 Automatic braking with Adaptive
Cruise Control
The Adaptive cruise control (ACC
55
) has a spe-
cial brake function in slow traffic and while sta-
tionary.
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,
Adaptive Cruise Control will go into standby
mode and the Auto-hold brake function will acti-
vate.
– Adaptive Cruise Control can be reactivated in
one of the following ways:
• Pressing the button on the steering
wheel keypad.
• Pressing the accelerator pedal.
>

Adaptive Cruise Control will resume fol-
lowing the vehicle ahead if it begins to
move within approx. 6 seconds.
NOTE ACC can keep the vehicle stationary for no
more than 5 minutes – after that time the
parking brake is applied and Adaptive Cruise
Control is deactivated.
The parking brake must be released before
Adaptive Cruise Control 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 Adaptive
Cruise Control 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 sta-
tionary.
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 Adaptive Cruise Control in
standby mode.
Auto Activate Parking BrakeIn certain situations, the parking brake will be
applied to keep the vehicle at a standstill. This occurs if Adaptive Cruise Control is keeping
the vehicle stationary using the brakes and:
• the driver opens the door or unbuckles
his/her seat belt
• ACC has kept the vehicle at a standstill for
more than approx. 5 minutes
• the brakes overheat
• the driver switches off the engine manually.
Related information
•
Adaptive Cruise Control* (p. 295) 55
Adaptive Cruise Control

DRIVER SUPPORT
}}
* 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.

||DRIVER SUPPORT
320
Automatic standby mode
Pilot Assist is dependent on other systems, such
as Electronic Stability Control (ESC
66
). 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.
WARNING A noticeable increase in speed may follow
when the speed is resumed with the
steering wheel button.
Related information
•
Pilot Assist (p. 311) 66
Electronic Stability Control

DRIVER SUPPORT
}}}}
323
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 BrakeIn 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. 311) 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.

||DRIVER SUPPORT
338
3 - Auto-brake
The automatic braking function is activated at the
last moment.
If the driver has not taken evasive action by this
stage and a collision is imminent, the automatic
braking function will be triggered. This occurs
whether or not the driver is pressing the brake
pedal. Full braking force will be applied to reduce
the speed at impact or reduced braking effect will
be applied if this is sufficient to avoid the colli-
sion.
The seat belt tensioners may be activated along
with the automatic braking function. See "Seat
belt tensioners" for more information.
In certain situations, auto-braking may begin with
a limited braking force before applying full brak-
ing force.
If City Safety has prevented a collision, the vehi-
cle will be kept at a standstill until the driver
takes action. If the vehicle has slowed to avoid
colliding with a slower-moving vehicle ahead, your
speed will be reduced to that vehicle's speed.
Auto-braking can always be cancelled if the
driver presses hard on the accelerator pedal.
NOTE
When City Safety activates the brakes, the
brake lights come on. When City Safety applies the brakes, a text mes-
sage will appear in the instrument panel to notify
the driver that the function is/was activated.
WARNING
City Safety may not be used to change how
the driver operates the vehicle. The driver
must not only rely on City Safety to brake the
vehicle.
Related information
•
City Safety™ (p. 335) Setting a warning distance for City
Safety
City Safety is always active, but the function's
warning distance can be adjusted.
NOTE The City Safety function cannot be deacti-
vated. It is activated automatically each time
the engine/electric motor is started.
The alert distance determines the sensitivity of
the system and regulates the distance at which
the light, sound and brake pulsations will be acti-
vated.
To select warning distance:
1.

Select Settings My Car IntelliSafe
in
the center display's Top view.
2. Under City Safety Warning, tap Late,
Normal or Early to set the desired warning distance.
If the driver feels that the Early setting is giving
too many warnings or finds them irritating, the
Normal or Late warning distance settings can
be selected instead.
If the driver feels that the warnings are too fre-
quent and distracting, the warning distance can
be reduced. This will reduce the total number of
warnings, but it will also result in City Safety pro-
viding warnings at a later stage.

DRIVER SUPPORT
}}
339
The
Late warning distance setting should there-
fore only be used in exceptional cases, such as
when a more dynamic driving style is preferred.
WARNING •
No automatic system can guarantee
100% correct function in all situations.
You should therefore never test use of
City Safety in the direction of people, ani-
mals or vehicles – this could lead to
severe damage, serious personal injury or
even death.
• City Safety warns the driver if there is a
risk of collision, but the function cannot
reduce the driver's reaction time.
• Even if the warning distance has been set
to Early, warnings may be perceived as
late in certain situations – e.g. when there
are large speed differences or if the vehi-
cle ahead suddenly brakes heavily.
• With the warning distance set to
Early,
warnings come further in advance. This
may cause the warnings to come more
frequently than with warning distance
Normal, but is recommended since it can
make City Safety more effective.
NOTE The warning with direction indicators for Rear
Collision Warning is deactivated if the colli-
sion warning distance in the City Safety func-
tion is set to the lowest level "
Late".
The seat belt tensioning and braking func-
tions remain active.
Related information
• City Safety™ (p. 335) Detecting obstacles with City Safety
City Safety can detect vehicles, cyclists, large
animals and pedestrians.
VehiclesCity Safety detects most types of vehicles that
are either stationary, moving in the same direc-
tion as your vehicle or those described in "City
Safety in crossing traffic".
For City Safety to be able to detect a vehicle in
the dark, its headlights and taillights must be on
and clearly visible.
Cyclists Optimal examples of what City Safety would interpret to
be a cyclist: clear body and bicycle shapes.
For optimal performance, the system's function
for cyclist detection needs the clearest possible
information about the contours of the bicycle and
of the cyclist's head, arm, shoulders, legs, torso