VOLVO XC90 TWIN ENGINE 2018 Owners Manual

DRIVER SUPPORT
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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

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340
and lower body in combination with normal
human movements.
If large portions of the cyclist's body or the bicy-
cle itself are not visible to the function's camera,
it will not be able to detect a cyclist.
The system can only detect adult cyclists riding
on bicycles intended for adults.
WARNING
City Safety is supplementary driver support,
but it cannot detect all cyclists in all situations
and, for example, cannot see:
• partially obscured cyclists.
• cyclists if the background contrast of the
cyclist is poor - warning and brake inter-
ventions may then be late or not occur at
all.
• cyclists in clothing that hides their body
contour.
• bikes loaded with large objects.
The driver is always responsible for ensuring
that the vehicle is driven correctly and with a
safety distance suitable for the speed.
Pedestrians Optimal examples of what the system considers to be a
pedestrian: clear body contours.
For optimal performance, the system's function
for pedestrian detection needs the clearest pos-
sible information about body and bicycle con-
tours. This entails being able to detect the con-
tours of the pedestrian's head, arm, shoulders,
legs, torso and lower body in combination with
normal human movements.
In order to detect a pedestrian, there must be a
contrast to the background, which could depend
on clothing, weather conditions, etc. If there is lit-
tle contrast, the person may be detected late or
not at all, which may result in a delayed reaction
from the system or no reaction at all.
City Safety can detect pedestrians even in dark
conditions if they are illuminated by the vehicle's
headlights.WARNING City Safety is supplementary driver support,
but it cannot detect all pedestrians in all sit-
uations and, for example, cannot see:
• partially obscured pedestrians, people in
clothing that hides their body contour or
pedestrians shorter than 80 cm (32 in.).
• pedestrians if the background contrast of
the pedestrians is poor - warning and
brake interventions may then be late or
not occur at all.
• pedestrians who are carrying large
objects.
The driver is always responsible for ensuring
that the vehicle is driven correctly and with a
safety distance suitable for the speed.

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341
Large animals Optimal examples of what City Safety would interpret as
a large animal: stationary or moving slowly and with clear
body contours.
For optimal performance, the system's function
for detecting large animals (e.g. moose, horses,
etc.) needs the clearest possible information
about body contours. This entails being able to
detect the animal straight from the side in combi-
nation with normal movements for that animal.
If parts of the animal's body are not visible to the
function's camera, the system will not be able to
detect the animal.
City Safety can detect large animals even in dark
conditions if they are illuminated by the vehicle's
headlights.WARNING City Safety is supplementary driver support,
but it cannot detect all large animals in all sit-
uations and, for example, cannot see:
• partially obscured larger animals.
• larger animals seen from the front or from
behind.
• running or fast moving larger animals.
• larger animals if the contrast of the ani-
mal's background is poor - warning and
brake interventions may then occur late
or not at all.
• smaller animals such as cats and dogs.
The driver is always responsible for ensuring
that the vehicle is driven correctly and with a
safety distance suitable for the speed.
Related information
• City Safety™ (p. 335) City Safety in crossing traffic
City Safety
can assist the driver when turning in
the path of an oncoming vehicle in an intersec-
tion. : Sector in which City Safety can detect an oncoming
vehicle in crossing traffic.
In order for City Safety to detect an oncoming
vehicle in situations where there is a risk of a col-
lision, that vehicle must be within the sector in
which City Safety can analyze the situation.
The following criteria must also be met:
• your vehicle's speed must be at least 4 km/h
(3 mph)
• your vehicle must be making a left turn
• the oncoming vehicle's headlights must be
on

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342
WARNING
•
The "City Safety in crossing traffic" func-
tion is supplementary driver support
intended to improve driving safety – it
cannot handle all situations in all traffic,
weather and road conditions.
• Warnings and brake interventions due to
a collision risk with an oncoming vehicle
often come very late.
• Never wait for a collision warning or for
City Safety to intervene.
• City Safety 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
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
Related information
•
City Safety™ (p. 335) Limitations of City Safety in
crossing traffic
In certain situations, it may be difficult for City
Safety to help the driver avoid a collision with
crossing traffic. For example:
• on slippery roads when Electronic Stability
Control (ESC) is actively operating
• if an approaching vehicle is detected at a late
stage
• if the oncoming vehicle is partially obstructed
by another vehicle or object
• if the oncoming vehicle's headlights are off
• if the oncoming vehicle is moving erratically
and e.g. suddenly changes lanes at a late
stage.
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
•
City Safety™ (p. 335)

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343
City Safety and delayed evasive
maneuvers
City Safety can assist the driver by automatically
braking the vehicle when it is not possible to
avoid a collision by steering alone.
City Safety assists the driver by periodically
attempting to predict possible "escape routes" to
the sides of the vehicle in the event a slow-mov-
ing or stationary vehicle were to be detected at a
late stage.
Your vehicle (1) cannot detect any potential escape
routes for veering away from the vehicle ahead (2) and
may therefore apply the brakes at an earlier stage.
Own vehicle
Slow-moving/stationary vehicles
City Safety will not intervene to automatically
apply the brakes if it is possible for the driver to
avoid a collision by steering the vehicle. However, if City Safety determines that an eva-
sive maneuver would not be possible due to traf-
fic in the adjacent lane(s), the function can assist
the driver by automatically starting to apply the
brakes at an earlier stage.
WARNING
•
The possibility of City Safety predicting a
certain situation is supplementary driver
support intended to improve driving safety
– it cannot handle all situations in all traf-
fic, weather and road conditions.
• City Safety 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
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
Limitations of City Safety during evasive
maneuvers
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
•
City Safety™ (p. 335)

DRIVER SUPPORT
344City Safety limitations
City Safety functionality may be reduced in cer-
tain situations.
Surroundings
Low objects
Hanging objects, such as flags for overhanging
loads or accessories such as auxiliary lights or
front protective grids that extend beyond the
height of the hood, may limit City Safety function-
ality.
Slippery road conditions
The extended braking distance on slippery roads
may reduce City Safety's capacity to help avoid a
collision. In these types of situations, the Anti-
lock Braking System and Electronic Stability Con-
trol (ESC 77
) will help provide optimal braking
power with maintained stability.
Backlighting
The visual warning signal in the windshield may
be difficult to detect in bright sunlight, if there are
reflections, or if the driver is wearing sunglasses
or not looking straight ahead.
Heat
If the temperature in the passenger compartment
is high due to e.g. bright sunlight, the visual warn-
ing signal in the windshield may be temporarily
disabled.
Camera and radar sensor's field of vision
The camera's field of vision is limited and in cer-
tain situations, it may be unable to detect pedes-
trians, large animals, cyclists or vehicles, or it may
detect them later than expected.
Vehicles that are dirty may be detected later than
clean vehicles, and in dark conditions, motorcy-
cles may be detected late or not at all.
If a text message displayed in the instrument
panel indicates that the camera/radar sensor is
obstructed, it may be difficult for City Safety to
detect pedestrians, large animals, cyclists, vehi-
cles or lane markings in front of the vehicle. City
Safety functionality may therefore be reduced.
Text messages may not be displayed for all situa-
tions in which the windshield sensors are
blocked. The driver must therefore always keep
the windshield in front of the camera/radar sen-
sor clean.
CAUTION Maintenance and replacement of City Safety
components may only be performed by a
workshop – an authorized Volvo workshop is
recommended.
Driver intervention
Backing up
City Safety is temporarily deactivated when the
vehicle is backing up.
Low speed
City Safety is not activated at very low speeds
under 4 km/h (3 mph). The system will therefore
not intervene in situations in which your vehicle is
approaching another vehicle very slowly, such as
when parking.
Active driver
Action by the driver always has priority. City
Safety will therefore not react or will react at a
later stage with a warning or intervention in situa-
tions in which the driver is clearly steering and
operating the accelerator pedal, even if a collision
is unavoidable.
An active and aware driving style may therefore
delay collision warnings and intervention in order
to minimize unnecessary warnings.
77
Electronic Stability Control

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345
Other limitations
WARNING•
Warnings and brake interventions can be
triggered late or not at all if the traffic sit-
uation or external influences prevent the
camera and radar unit from properly
detecting pedestrians, cyclists, large ani-
mals or vehicles ahead of the vehicle.
• To be able to detect vehicles at night, its
front and rear lights must work and illumi-
nate clearly.
• The camera and radar unit have a limited
range for pedestrians and cyclists – the
system can provide effective warnings
and brake interventions if the relative
speed is lower than 50 km/h (30 mph).
For stationary or slow-moving vehicles,
warnings and brake interventions are
effective at vehicle speeds of up to
70 km/h (43 mph). Speed reduction for
large animals is less than 15 km/h
(9 mph) and can be achieved at vehicle
speeds over 70 km/h (43 mph). At lower
speeds, the warning and brake interven-
tion for large animals is less effective.
• Warnings for stationary or slow-moving
vehicles and large animals can be disen-
gaged due to darkness or poor visibility. •
Warnings and brake interventions for
pedestrians and cyclists are disengaged
at vehicle speeds over 80 km/h
(50 mph).
• 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-
based functions.
• Objects, snow, ice or dirt in the area of
the camera sensor can reduce the func-
tion, disengage it completely or give an
improper function response.
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".
Market limitationsCity Safety is not available in all countries. If City
Safety is not shown in the center display's
Settings menu, your vehicle is not equipped with
this function. In the center display's Top view, tap:
• Settings My Car IntelliSafe
Related information
•
City Safety™ (p. 335)

DRIVER SUPPORT
346City Safety messages
A number of messages related to City Safety
may be displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below.
Message
Meaning
City Safety
Automatic intervention When City Safety is braking or has activated the automatic braking funct\
ion, one or more symbols may illuminate in
the instrument panel and a text message may be displayed.
City Safety
Reduced functionality Service
required The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.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
• City Safety™ (p. 335)

DRIVER SUPPORT
347
Rear Collision Warning
The Rear Collision Warning (
RCW) function can
help the driver avoid rear-end collisions from
vehicles approaching from behind.
RCW is automatically activated each time the
engine is started.
RCW can warn the driver of a potential collision
with vehicles approaching from behind by rapidly
flashing the turn signals.
If, at a speed below 30 km/h (20 mph), the RCW
function detects that the car is in danger of being
hit from behind, the seatbelt tensioners may ten-
sion the front seatbelts and activate the Whiplash
Protection System safety system.
Immediately before a collision from behind, RCW
may also activate the foot brake in order to
reduce the forward acceleration of the car during
the collision. However, the brakes will only be
applied if your vehicle is stationary. The brakes
will be immediately released if the accelerator
pedal is depressed.
Related information
• Rear Collision Warning limitations (p. 347)
• Whiplash Protection System (p. 46) Rear Collision Warning limitations
In some situations, it may be difficult for RCW to
warn the driver of a collision risk. This may be the case if:
• the vehicle approaching from the rear is
detected at a late stage
• the vehicle approaching from the rear
changes lanes at a late stage
• the vehicle approaching from the rear is mov-
ing at a speed above 80 km/h (50 mph)
• a trailer, bicycle holder or similar is con-
nected to the vehicle's electrical system - the
RCW function will then be automatically
deactivated.
NOTE In certain markets RCW does not warn with
the direction indicators due to local traffic
regulations – in such cases, that part of the
function is deactivated.
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
• Rear Collision Warning (p. 347)

DRIVER SUPPORT
* Option/accessory.
348 BLIS*
The BLIS 78
function is designed to help provide
assistance in heavy traffic with several lanes
moving in the same direction by helping the
driver to detect the presence of vehicles in the
"blind spot" area behind and to the side of the
vehicle.
BLIS is a driver support system designed to alert
the driver of:
• vehicles in your "blind spot"
• vehicles approaching rapidly in adjacent
lanes. Location of BLIS indicator light.
79 Indicator light
The BLIS button in the center display's Func-
tion view is used to activate/deactivate the
function. BLIS overview
Blind spot zone
Rapidly approaching vehicle zone.
The BLIS function is active at speeds
above 10 km/h (6 mph).
The system is designed to react to: • vehicles passing your vehicle
• vehicles that are rapidly approaching your
vehicle from behind.
When BLIS

detects a vehicle in zone 1 or a rap-
idly approaching vehicle in zone 2, an indicator
light will illuminate in the relevant rearview mirror
and glow steadily. If the driver then uses the turn
signal on the side in which the warning has been 78
Blind Spot Information Systems
79 Note: This illustration is general and details may vary depending on mod\
el.