sensor VOLVO XC90 TWIN ENGINE 2019 Repair Manual

DRIVER SUPPORT
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351
City 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 73
) 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.
73
Electronic Stability Control

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352
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 combined
camera and radar unit, which has certain gen-
eral limitations; see sections "Camera limita-
tions" and "Radar sensor 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. 341)
Camera limitations (p. 338)
Radar sensor limitations (p. 333)

DRIVER SUPPORT
* Option/accessory.357
Related information
BLIS* (p. 355) BLIS limitations
BLIS 78
functionality may be reduced in certain
situations. Keep the marked area clean (on both the left and right
sides of the vehicle)
79
.
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. 355) 76
Blind Spot Information
77 Note: This illustration is general and details may vary depending on mod\
el.
78 Blind Spot Information
79 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.
358 Recommended maintenance for
BLIS

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 the marked area clean (on both the left and right
sides of the vehicle)
80
.
The BLIS sensors are located on the inside of
each of the rear fenders/bumpers and are also
used by the Cross Traffic Alert (CTA) 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

BLIS* (p. 355)
Cross Traffic Alert* (p. 360)
Activating/deactivating Cross Traffic Alert
(p. 361)
Cross Traffic Alert limitations (p. 361)
Recommended maintenance for Cross
Traffic Alert (p. 362)
Cross Traffic Alert messages (p. 363)
Rear Collision Warning (p. 354) 80
Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.359
BLIS messages
A number of messages related to BLIS 81
may
be displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below. Message
Meaning
Blind spot sensor
Service required The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
Blind spot system off
Trailer attached BLIS and CTA have been deactivated because a trailer has been connected \
to the vehicle's electrical system.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
BLIS* (p. 355) 81
Blind Spot Information

DRIVER SUPPORT
* Option/accessory.
360 Cross Traffic Alert*
CTA 82
is a supplementary driver support system
to BLIS 83
that is intended to help the driver
detect vehicles crossing behind the vehicle
while backing up. CTA overview.
CTA supplements BLIS by detecting traffic cross-
ing from the side, e.g. when backing out of a
parking space.
CTA is primarily designed to detect vehicles, but
in certain cases can also detect pedestrians or
smaller objects such as bicycles.
CTA is only active when the vehicle is moving
backward or if reverse gear is engaged. If CTA detects that something is approaching
your vehicle from the side:
an audible signal will sound from either the
left or right speaker, depending on which
side of your vehicle the object is approaching
from.
an icon will illuminate in the PAS 84
graphic
on the screen.
an icon will appear in the Park Assist Cam-
era's Top view. Illuminated CTA icon in the PAS graphic
85
on the
screen.
WARNING
The Cross Traffic Alert function is supple-
mentary driver support intended to facili-
tate driving and make it safer – it cannot
handle all situations in all traffic, weather
and road conditions.
The responsibility for reversing the vehicle
safely and using good judgment always
rests with the driver.
Cross Traffic Alert is not a substitute for
the driver's attention and judgment. The
driver is always responsible for ensuring
the vehicle is driven in a safe manner, at
the appropriate speed, with an appropri-
ate distance to other vehicles, and in
accordance with current traffic rules and
regulations.
Related information
Activating/deactivating Cross Traffic Alert
(p. 361)
Cross Traffic Alert limitations (p. 361)
Recommended maintenance for Cross
Traffic Alert (p. 362)
Cross Traffic Alert messages (p. 363) 82
Cross Traffic Alert
83 Blind Spot Information
84 Park Assist System: Parking assistance with reversing sensors
85 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
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* Option/accessory. 361
Activating/deactivating Cross Traffic
Alert
The driver can choose to deactivate the CTA 86
function as follows:
Press the Cross Traffic Alertbutton in the center display's
Function view.
GRAY button indicator light - CTA is deacti-
vated.
GREEN button indicator light - CTA is acti-
vated.
CTA is automatically activated each time the
engine is started.
Related information
Cross Traffic Alert* (p. 360) Cross Traffic Alert limitations
CTA 87
functionality may be reduced in certain
situations.
CTA does not function optimally in all situations
and has certain limitations. The CTA sensors, for
example, cannot "see" through other parked
vehicles or objects blocking the vehicle.
Below are a few examples of situations in which
CTA's field of vision may be initially limited and
approaching vehicles may therefore not be
detected until they are very close to your vehicle: The vehicle is parked very far into a parking space. In a diagonal parking space, CTA may be completely
"blind" on one side of your vehicle.
CTA's blind zone.
CTA's field of vision.
However, as you back your vehicle slowly out of a
parking space, CTA's field of vision changes in
relation to the obstructing vehicle/object and its
blind zone is reduced. 86
Cross Traffic Alert
87 Cross Traffic Alert

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* Option/accessory.
362
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. 360)
Recommended maintenance for Cross
Traffic Alert (p. 362) 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 the marked area clean (on both the left and right
sides of the vehicle)
88
.
The CTA sensors are located on the inside of
each of the rear fenders/bumpers and are also
used by the BLIS 89
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. 360)
BLIS* (p. 355)
Rear Collision Warning (p. 354) 88
Note: This illustration is general and details may vary depending on mod\
el.
89 Blind Spot Information

DRIVER SUPPORT
* Option/accessory.363
Cross Traffic Alert messages
A number of messages related to CTA 90
may be
displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below. Message
Meaning
Blind spot sensor
Service required The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
Blind spot system off
Trailer attached BLIS and CTA have been deactivated because a trailer has been connected \
to the vehicle's electrical system.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
Cross Traffic Alert* (p. 360) 90
Cross Traffic Alert

DRIVER SUPPORT
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377
Lane Keeping Aid symbols and
messages
A number of symbols and messages related to
Lane Keeping Aid LKA 110
may be displayed in
the instrument panel. Some examples of symbols and messages are shown in the table below. Symbol
Message MeaningDriver support system
Reduced functionality Service required
The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo work-
shop is recommended. Windscreen sensor
Sensor blocked, see Owner's manual
The camera's ability to detect the lane in front of the vehicle is re\
duced.Lane Keeping Aid
Apply steering
LKA's steering assistance is disabled when the driver's hands are \
not on the wheel. Follow
the instructions and steer the vehicle.Lane Keeping Aid
Apply steering
LKA will go into standby mode until the driver begins steering the vehic\
le again.110
Lane Keeping Aid