Volvo XC90 T8 Twin Engine Plug-in Hybrid (2017 year). Manual — part 19
DRIVER SUPPORT
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319
Radar sensor limitations
The radar sensor used by several of the driver
support systems has certain limitations, which
also affect the systems using it.
Obstructions
The marked area must not be obstructed in any way.
This area of the windshield should always be kept clean
The radar sensor is located at the upper, center
section of the windshield along with the camera.
WARNING
Never place any objects, decals, electronic toll
devices, window tinting films etc., on the wind-
shield in front of or around the camera/radar
sensor. This could reduce or block these com-
ponents' functions, and could cause one or
more of the systems that utilize them to stop
functioning.
This can also result in certain functions being
reduced or disabled, or they may respond
incorrectly.
If this symbol and the message
Windscreen Sensors blocked
appear in the instrument panel, this
indicates that the camera and/or radar
sensor cannot detect other vehicles ahead.
The following table shows some of the situations
that can cause the message to be displayed and
suggested actions.
Cause
Action
The area of the windshield in front of the camera/radar sensor is dirty or covered by ice
or snow.
Clean the windshield or remove the ice/ snow.
Thick fog or heavy rain/snow reduces the camera/radar sensor's range of visibility.
No action. The driver should be extra alert in conditions of this
type.
Water or snow on the surface of the road swirl up and block radar signals or the camera's
view.
No action. The driver should be extra alert in conditions of this
type.
There is dirt between the inside of the windshield and the camera/radar sensor.
Have the area of the windshield cleaned by a trained and quali-
fied Volvo service technician.
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320
Vehicle's speed
The radar sensor's capacity to detect vehicles
ahead is impeded:
•
if the speed of the vehicle ahead differs
greatly from your vehicle's speed.
Limited field of vision
The radar sensor has a limited field of vision. In
some situations it may detect a vehicle later than
expected or not detect other vehicles at all.
Radar sensor's field of vision
In certain situations, the radar sensor cannot
detect vehicles at close quarters, for example
a vehicle that suddenly enters the lane
between your vehicle and the target vehicle.
Small vehicles, such as motorcycles, or vehi-
cles not driving in the center of the lane may
remain undetected.
In curves, the radar sensor may detect the
wrong vehicle or lose sight of the target vehi-
cle.
Low trailer in the radar shadow (generic illustration)
Low trailers may also be difficult to detect or may
not be detected at all. The driver should be extra
alert in situations of this type.
High temperatures
If the temperature in the passenger compartment
is very high, the camera and radar sensor may be
temporarily turned off for approx. 15 minutes
after the engine has been started to protect their
electronic components. When the temperature
has cooled sufficiently, the camera and radar
sensor will restart automatically.
Damaged windshield
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321
•
Service and maintenance on City Safety
may only be carried out by a trained and
qualified Volvo service technician.
•
If a crack, scratch or stone chip should
occur in the section of the windshield in
front the camera/radar sensor, contact a
trained and qualified Volvo service techni-
cian to repair or replace the windshield.
Failing to do so may result in reduced
City Safety functionality.
•
This can also result in certain functions
being reduced or disabled, or they may
respond incorrectly.
To help avoid the risk of incorrect, reduced or
disabled functionality for driver support sys-
tems using the camera or radar sensors:
•
Volvo recommends that cracks, scratches
or stone chips on the windshield in front
of the camera/radar sensor should not
be repaired; in such cases, the entire
windshield should be replaced.
•
Before the windshield is replaced, con-
tact a Volvo retailer to ensure that the
correct windshield is ordered and instal-
led. If the wrong type of windshield is
used, this may cause City Safety to func-
tion improperly or not at all.
•
Volvo recommends the use of only Genu-
ine Volvo Replacement Windshields.
•
When replacing windshield wipers, use
the same type or ones approved by Volvo.
After the windshield has been replaced, the
camera/radar sensor will have to be recalibra-
ted by a trained and qualified Volvo service
technician to help ensure proper function of
all of the vehicle's camera-/radar-based sys-
tems.
Maintenance
In order for camera and radar sensor to function
properly, the area of the windshield must be kept
free of dirt, ice, snow, etc. and should be washed
regularly with a suitable car washing detergent.
Dirt, ice and/or snow covering the camera
and radar sensors reduce functionality and
may disable the vehicle's camera-/radar-
based systems.
This can also result in certain functions being
reduced or disabled, or they may respond
incorrectly.
Related information
•
Driver support system radar sensor (p. 318)
•
•
Pilot Assist-1 limitations (p. 304)
•
Pilot Assist-2 limitations (p. 315)
•
City Safety limitations (p. 334)
•
City Safety limitations (p. 334)
•
•
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322
Radar sensor - type approval
USA & Canada:
FCC ID: L2C0054TR IC: 3432A-0054TR FCC
ID: L2C0055TR IC: 3432A-0055TR
This device complies with Part 15 of the FCC
Rules and with Industry Canada license-exempt
RSS standard(s). Operation is subject to the fol-
lowing two conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) This device must accept any interference
received, including interference that may cause
undesired operation.
WARNING
Changes or modifications not expressively
approved by the party responsible for compli-
ance could void the user's authority to oper-
ate the equipment.
The term “IC:” before the radio certification num-
ber only signifies that Industry Canada technical
specifications were met.
Related information
•
Driver support system radar sensor (p. 318)
Driver support system camera
The camera is used by a number of driver sup-
port systems to e.g., detect a driving lane's side
marker lines or traffic signs.
Camera location
The camera is used by the following driver sup-
port systems:
•
Adaptive Cruise Control (ACC)
*
•
Driving lane assistance
*
•
Driver Alert Control
*
•
Pilot Assist
*
•
City Safety
•
Run-off Mitigation
•
Road sign information
*
•
Active high beams
*
Related information
•
•
•
Driving lane assistance (p. 350)
•
Driver Alert Control (DAC) (p. 348)
•
•
•
•
•
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323
Camera limitations
The camera used by several of the driver support
systems has certain limitations, which also affect
the systems using it.
Reduced visibility
WARNING
•
The camera has the same limitations as
the human eye. In other words, its “vision
is impaired” by adverse weather condi-
tions such as heavy snowfall, dense fog,
etc. These conditions may reduce the
function of systems that depend on the
camera or cause these systems to tem-
porarily stop functioning.
•
Strong sunlight, reflections from the road
surface, ice or snow covering the road, a
dirty road surface, or unclear lane marker
lines may drastically reduce the camera’s
capacity to detect the side of a lane, a
pedestrian, a cyclist or another vehicle.
Obstructions
The marked area must not be obstructed in any way.
This area of the windshield should always be kept clean
The camera is located at the upper, center sec-
tion of the windshield along with the radar sen-
sor.
WARNING
Never place any objects, decals, electronic toll
devices, window tinting films etc., on the wind-
shield in front of or around the camera/radar
sensor. This could reduce or block these com-
ponents' functions, and could cause one or
more of the systems that utilize them to stop
functioning.
This can also result in certain functions being
reduced or disabled, or they may respond
incorrectly.
If this symbol and the message
Windscreen Sensors blocked
appear in the instrument panel, this
indicates that the camera and/or radar
sensor cannot detect other vehicles ahead.
The following table shows some of the situations
that can cause the message to be displayed and
suggested actions.
Cause
Action
The area of the windshield in front of the camera/radar sensor is dirty or covered
by ice or snow.
Clean the windshield or remove the ice/ snow.
Thick fog or heavy rain/snow reduces the camera/radar sensor's range of visibility.
No action. The driver should be extra alert in conditions of this type.
Water or snow on the surface of the road swirl up and block radar signals or the
camera's view.
No action. The driver should be extra alert in conditions of this type.
||
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324
Cause
Action
There is dirt between the inside of the windshield and the camera/radar sensor.
Have the area of the windshield cleaned by a trained and qualified
Volvo service technician.
Strong backlighting
No action required. The came will reset automatically when lighting
conditions improve.
High temperatures
If the temperature in the passenger compartment
is very high, the camera and radar sensor may be
temporarily turned off for approx. 15 minutes
after the engine has been started to protect their
electronic components. When the temperature
has cooled sufficiently, the camera and radar
sensor will restart automatically.
Damaged windshield
•
Service and maintenance on City Safety
may only be carried out by a trained and
qualified Volvo service technician.
•
If a crack, scratch or stone chip should
occur in the section of the windshield in
front the camera/radar sensor, contact a
trained and qualified Volvo service techni-
cian to repair or replace the windshield.
Failing to do so may result in reduced
City Safety functionality.
•
This can also result in certain functions
being reduced or disabled, or they may
respond incorrectly.
To help avoid the risk of incorrect, reduced or
disabled functionality for driver support sys-
tems using the camera or radar sensors:
•
Volvo recommends that cracks, scratches
or stone chips on the windshield in front
of the camera/radar sensor should not
be repaired; in such cases, the entire
windshield should be replaced.
•
Before the windshield is replaced, con-
tact a Volvo retailer to ensure that the
correct windshield is ordered and instal-
led. If the wrong type of windshield is
used, this may cause City Safety to func-
tion improperly or not at all.
•
Volvo recommends the use of only Genu-
ine Volvo Replacement Windshields.
•
When replacing windshield wipers, use
the same type or ones approved by Volvo.
After the windshield has been replaced, the
camera/radar sensor will have to be recalibra-
ted by a trained and qualified Volvo service
technician to help ensure proper function of
all of the vehicle's camera-/radar-based sys-
tems.
Maintenance
In order for camera and radar sensor to function
properly, the area of the windshield must be kept
DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
325
free of dirt, ice, snow, etc. and should be washed
regularly with a suitable car washing detergent.
Dirt, ice and/or snow covering the camera
and radar sensors reduce functionality and
may disable the vehicle's camera-/radar-
based systems.
This can also result in certain functions being
reduced or disabled, or they may respond
incorrectly.
Related information
•
Driver support system camera (p. 322)
•
Radar sensor limitations (p. 319)
•
Driving lane assistance (p. 350)
•
Driver Alert Control limitations (p. 350)
•
Pilot Assist-1 limitations (p. 304)
•
Pilot Assist-2 limitations (p. 315)
•
City Safety limitations (p. 334)
•
•
DRIVER SUPPORT
326
City Safety
™
City Safety
™ is a support system designed to
help alert the driver to pedestrians, cyclists, large
animals and vehicles that may appear suddenly
in front of your vehicle by providing visual, audi-
ble and haptic alerts. The vehicle will brake auto-
matically if the driver is unable to react quickly
enough.
City Safety introduction
Location of the camera and radar sensor (generic illus-
tration)
City Safety can help prevent a collision or lower
the vehicle's speed at the point of impact.
WARNING
•
City Safety
™ is a supplemental aid to the
driver. It can never replace the driver’s
attention to traffic conditions or his/her
responsibility for operating the vehicle in
a safe manner.
•
City Safety
™ does not function in all driv-
ing situations or in all traffic, weather or
road conditions.
The City Safety function can help the driver avoid
a collision when e.g., there is a sudden change in
the traffic ahead if the driver's does not take
action.
The function assists the driver by applying the
brakes automatically if there is an imminent risk
of a collision and the driver does not react in
time.
City Safety triggers brief, forceful braking in an
attempt to stop your vehicle immediately behind
the vehicle or object ahead. This braking may be
perceived as being very sudden.
City Safety activates in situations where the driver
has not applied the brakes in time, which means
that the system cannot help the driver in all situa-
tions.
City Safety is designed to intervene as late as
possible to help avoid unnecessary activation.
Normally, the occupants of the vehicle will not be
aware of City Safety except when the system
intervenes when a collision is imminent.
City Safety parameters
City Safety can help avoid a collision with a vehi-
cle or cyclist ahead by reducing your vehicle's
speed by up to 30 mph (50 km/h).
In the case of pedestrians, City Safety can
reduce speed by up to 28 mph (45 km/h).
If the difference in speed is greater than
30 mph (50 km/h) or 28 mph (45 km/h) respec-
tively, City Safety's auto-brake function cannot
prevent a collision but it can help mitigate the
effects of the collision.
If there is a risk of colliding with a large animal,
City Safety can reduce the vehicle's speed by up
to 9 mph (15 km/h). The braking function for
large animals is primarily intended to mitigate the
force of a collision at higher speeds. Braking is
most effective at speeds above 43 mph
(70 km/h) and less effective at lower speeds.
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327
WARNING
Warnings will only be provided if there is an
imminent risk of a collision taking place. The
driver should be aware of the system's limita-
tions before operating the vehicle.
Warnings and automatic braking for pedes-
trians and cyclists are deactivated at speeds
above approx. 43 mph (70 km/h).
City Safety's auto-brake function can help
prevent a collision or reduce the speed at
which a collision occurs. However, the driver
should always apply the brakes, even if auto-
brake is operating.
The driver is always responsible for maintain-
ing the correct speed and distance in relation
to the vehicle ahead. Never wait for a collision
warning or for City Safety to intervene.
City Safety does not activate the auto-brake
function during fast acceleration.
City Safety maintenance may only be carried
out by a trained and qualified Volvo service
technician.
Function overview
Audio-visual collision warning
Distance monitoring by a camera and radar
sensor
When triggered, City Safety carries out three
steps in the following order:
1. Collision warning
2. Brake assistance
3. Auto-brake
1: Collision warning
The driver is first alerted to the risk of an immi-
nent collision.
City Safety can detect pedestrians, cyclists or
vehicles that are stationary, are moving in the
same direction as your vehicle or are in your vehi-
cle's path.
City Safety can also detect pedestrians, large ani-
mals or cyclists that are crossing in front of your
vehicle.
If there is a risk of a collision with a pedestrian,
cyclist, large animal or a vehicle, as well as vehi-
cles described in the article "City Safety in cross-
ing traffic," the driver will be alerted by a flashing
red warning signal, an audible signal and a haptic
warning in the form of pulsations in the brake
pedal. At lower speeds, during hard braking or if
the accelerator pedal is pressed, the haptic warn-
ing will not be given.
2: Brake assistance
If the risk of a collision increases, brake support
will be activated.
This function increases pressure on the brake
pedal if the driver does not apply enough pres-
sure to the pedal.
3: Auto-brake
The brakes will be applied automatically.
If the driver has not taken action at this stage and
a collision is imminent, auto-braking will be trig-
gered. Full braking effect will be used to avoid
the collision if possible or to make the speed at
the point of impact as low as possible.
In certain situations, auto-braking may begin with
limited effect before full braking is used.
If City Safety has prevented a collision, the vehi-
cle will be kept at a standstill until the driver
||
DRIVER SUPPORT
328
takes action. If the vehicle has slowed to avoid
colliding with the vehicle ahead, your speed will
be reduced to that vehicle's speed.
When auto-brake is triggered, the seat belt pre-
tensioners may also be activated, see the article
"Seat belts" for additional information.
Auto-braking can be cancelled if the driver
presses hard on the accelerator pedal.
When City Safety applies the brakes, the brake
lights will illuminate.
When City Safety is triggered and applies the
brakes, a text message will be displayed in the
instrument panel.
Related information
•
•
City Safety in crossing traffic (p. 331)
•
City Safety limitations (p. 334)
•
City Safety symbols and messages (p. 337)
•
Detecting obstructions with City Safety
(p. 329)
•
Rear Collision Warning (RCW) (p. 338)
•
City Safety warning level settings (p. 328)
•
City Safety in crossing traffic (p. 331)
•
•
City Safety when evasive action is not possi-
ble (p. 332)
City Safety warning level settings
City Safety is always activated but the function's
warning distance can be adjusted.
City Safety cannot be turned off and activates
automatically each time the engine/electric
motor is started.
Setting a warning level (distance)
The distance set for warnings determines the
system's responsiveness and sets the distance at
which visual, audible and tangible (haptic) warn-
ings will be triggered.
To do so:
1. Tap
Settings
in the center display's Top
view.
2. Tap
My Car
IntelliSafe
City Safety
.
3. Choose among
Earlier
,
Normal
or
Later
.
Begin by choosing
Earlier
. If too many warnings
are given, change to
Normal
.
If the driver feels that warnings are given too
often, the warning level can be lowered. This
means that warnings will be provided later, result-
ing in fewer warnings being given.
The setting
Later
should only used in exceptional
circumstances, e.g., for a more dynamic driving
style.
WARNING
•
No automatic system can be guaranteed
to function 100% correctly in all situa-
tions. For that reason, never test City
Safety by driving toward a person or
object. This could result in serious injury
or death.
•
Even if the setting
Earlier
has been
selected, warnings may be perceived as
being given late, e.g., if the difference in
speed is great or if the vehicle ahead
brakes suddenly.
•
City Safety can provide a warning for a
potential collision but it can never shorten
the driver's reaction time.
•
To help make City Safety as effective as
possible, always using the setting
Earlier
is recommended.
•
Due to local traffic regulations in certain
markets, RCW will not activate the rear
turn signals. That part of the function will
be deactivated.
•
The use of the rear turn signals will also
be deactivated if the City Safety warning
level is set at
Later
. See also the section
"Setting a warning level (distance)" in the
article "City Safety settings."
•
If RCW detects a vehicle approaching
from behind, the seat belt pretensioners
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329
and Whiplash Protection System will be
activated.
Related information
•
City Safety limitations (p. 334)
•
•
Rear Collision Warning (RCW) (p. 338)
Detecting obstructions with City
Safety
City Safety can detect vehicles, cyclists, large
animals and pedestrians.
Vehicles
City Safety detects most types of vehicles that
are either stationary, moving in the same direc-
tion as your vehicle or those described in the arti-
cle "City Safety in crossing traffic."
In order for City Safety to detect a vehicle in
darkness, its headlights and taillights must be on
and clearly visible.
Cyclists
Optimal example of what the system considers to be a
cyclist: clear body/bike contours
To help function optimally, City Safety's function
for cyclist detection needs clear information
about the bike itself and the rider's head, arms,
shoulders, legs, the upper and lower parts of the
body and a cyclist's normal pattern of movement.
•
If major parts of the cyclist's body are not
visible to the camera, the system cannot
detect the cyclist.
•
The cyclist must be an adult riding a bike
intended for an adult.
WARNING
City Safety is designed to be a supplementary
driving aid and cannot detect all cyclists in all
situations, such as:
•
a partially obscured cyclist.
•
a cyclist whose clothing prevents a clear
view of the person's body contours.
•
a cyclist transporting a large object.
The driver is always responsible for operating
the vehicle in a safe manner.
||
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330
Pedestrians
Optimal example of what the system considers to be a
pedestrian: clear body contours
To help function optimally, City Safety's function
for pedestrian detection needs clear information
about the person's head, arms, shoulders, legs,
the upper and lower parts of the body and a per-
son's normal pattern of movement.
In order to detect a pedestrian, there must be a
contrast to the background. If there is little con-
trast, the person may be detected late or not at
all, which may result in a late or no reaction from
the system.
•
If major parts of the pedestrian's body are
not visible to the camera, he/she may not be
detected.
•
In order to detect a pedestrian, the system
must have a full view of the person's entire
body and the person must be at least 32 in.
(80 cm) tall.
•
City Safety can also help detect pedestrians
in dark conditions if they are in the path of
the vehicle's headlights.
WARNING
City Safety is designed to be a supplementary
driving aid.
It cannot detect pedestrians:
•
who are partially obscured, wearing cloth-
ing that prevents a clear view of the per-
son's body contours or who are not at
least 32 in. (80 cm) tall.
•
who have limited contrast to their immedi-
ate background. A warning or braking
may be delayed or not come at all.
•
carrying a large object.
The driver is always responsible for operating
the vehicle in a safe manner.
Large animals
Examples of what City Safety considers to be large ani-
mals: stationary or moving slowly with clear body con-
tours
To function optimally, the system feature for
detecting large animals (moose, horses, etc.)
must receive as clear information about body
contours as possible. This entails being able to
detect the animal straight from the side and
assumes that the animal has a normal pattern of
movement.
If parts of the animal's body are hidden from the
camera, the system cannot detect this animal.
City Safety can also help detect large animals in
dark conditions if they are in the path of the vehi-
cle's headlights.
DRIVER SUPPORT
331
WARNING
City Safety is designed to be a supplementary
driving aid.
It cannot detect large animals in all situations
such as:
•
large animals that are partially obscured
•
large animals straight from the front or
rear
•
large animals that are running or moving
quickly
•
large animals that have limited contrast to
their immediate background. A warning or
braking may be delayed or not come at
all.
•
smaller animals such as dogs or cats
The driver is always responsible for operating
the vehicle in a safe manner.
Related information
•
•
City Safety limitations (p. 334)
•
City Safety in crossing traffic (p. 331)
City Safety in crossing traffic
City Safety can help the driver when turning in
the path of an oncoming vehicle in an intersec-
tion.
Turning at an intersection
1. The area in which City Safety can detect an oncoming
vehicle
In order for City Safety to detect an approaching
vehicle in situations where there is a risk of a col-
lision, that vehicle must be within City Safety's
range (the red area in the illustration).
The following criteria must also be met:
•
your vehicle's speed must be at least 3 mph
(4 km/h)
•
the approaching vehicle's headlights must be
on
•
your vehicle must be making a left turn
WARNING
•
City Safety is a supplementary driving aid
and does not function in all driving situa-
tions or in all traffic, weather or road con-
ditions.
•
Warnings and braking for an approaching
vehicle will usually come at a very late
stage.
•
The driver is responsible for maintaining a
safe distance and speed. Never wait for a
warning or for City Safety to take action.
Limitations in crossing traffic
In certain situations, it may be very difficult for
City Safety to help the driver avoid a collision with
an approaching vehicle in crossing traffic, for
example:
•
on slippery roads when Electronic Stability
Control is active
•
if the approaching vehicle is detected at a
late stage
•
If the approaching vehicle is partially
obscured by another vehicle
•
if the approaching vehicle moves erratically
(e.g., sudden lane changes at a late stage)
Related information
•
•
DRIVER SUPPORT
332
City Safety when evasive action is
not possible
City Safety can help the driver by automatically
braking the vehicle sooner if it is not possible to
steer out of a potential collision situation.
City Safety assists the driver by continuously try-
ing to determine possible "escape routes" to the
sides if a slow-moving or stationary vehicle ahead
is detected at a late stage.
Your vehicle (1) cannot "see" any way of veering to
avoid the vehicle ahead (2) and will attempt to auto-
brake sooner
Your vehicle
Slow moving/stationary vehicle
City Safety will not trigger the auto-brake func-
tion as long as the driver has a chance to avoid a
collision by steering the vehicle.
However, if City Safety determines that an eva-
sive steering maneuver is not possible due to a
lack of space in the adjacent traffic lanes, the
function will attempt to assist the driver by auto-
matically applying the brakes considerably
sooner.
WARNING
City Safety's capacity to assess certain traffic
situations is a supplemental aid to the driver
and does not function in all driving/traffic sit-
uations or weather/road conditions. It can
never replace the driver’s attention to traffic
conditions or his/her responsibility for operat-
ing the vehicle in a safe manner.
Related information
•
City Safety limitations (p. 334)
•
City Safety
™ troubleshooting
Messages pertaining to any possible problems
with City Safety will be displayed in the instru-
ment panel.
Troubleshooting and remedial action
Location of the camera and the radar sensor
If a message is displayed in the instrument panel
saying that the camera/radar sensor is blocked,
City Safety cannot detect vehicles, cyclists or
pedestrians ahead of you, which means that the
system is not functioning properly.
However, this message will not be displayed in all
situations in which the camera/radar sensor is
obstructed. For this reason, the driver must
ensure that the area of the windshield in front of
the camera/radar sensor is always kept clean.
DRIVER SUPPORT
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* Option/accessory, for more information, see Introduction.
333
The following table shows some of the situations
that can cause the message to be displayed and
suggested actions.
Cause
Action
The area of the wind-
shield in front of the
camera/radar sensor is
dirty or covered by ice or
snow.
Clean the wind-
shield or remove
the ice/ snow.
Thick fog or heavy rain/
snow blocks reduces the
camera/radar sensor's
range of visibility.
No action. The
driver should be
extra alert in condi-
tions of this type.
There is dirt between
the inside of the wind-
shield and the camera/
radar sensor.
Have the area of
the windshield
cleaned by a
trained and quali-
fied Volvo service
technician.
•
Service and maintenance on City Safety
may only be carried out by a trained and
qualified Volvo service technician.
•
If a crack, scratch or stone chip should
occur in the section of the windshield in
front the camera/radar sensor, contact a
trained and qualified Volvo service techni-
cian to repair or replace the windshield.
Failing to do so may result in reduced
City Safety functionality.
•
This can also result in certain functions
being reduced or disabled, or they may
respond incorrectly.
To help avoid the risk of incorrect, reduced or
disabled functionality for driver support sys-
tems using the camera or radar sensors:
•
Volvo recommends that cracks, scratches
or stone chips on the windshield in front
of the camera/radar sensor should not
be repaired; in such cases, the entire
windshield should be replaced.
•
Before the windshield is replaced, con-
tact a Volvo retailer to ensure that the
correct windshield is ordered and instal-
led. If the wrong type of windshield is
used, this may cause City Safety to func-
tion improperly or not at all.
•
Volvo recommends the use of only Genu-
ine Volvo Replacement Windshields.
•
When replacing windshield wipers, use
the same type or ones approved by Volvo.
After the windshield has been replaced, the
camera/radar sensor will have to be recalibra-
ted by a trained and qualified Volvo service
technician to help ensure proper function of
all of the vehicle's camera-/radar-based sys-
tems.
Maintenance
In order for City Safety to function properly, the
area of the windshield must be kept free of dirt,
ice, snow, etc.
Other vehicle functions
If a message is displayed in the instrument panel,
this means that the other systems using the cam-
era/radar sensor (see the list below) will not have
full functionality or may not function at all.
The camera and radar sensor is used by the fol-
lowing functions:
•
Distance Alert
*
•
Driver Alert Control
*
•
Adaptive Cruise Control
*
•
Pilot Assist
*
•
Run-off Mitigation
•
Road Sign Information
*
•
Active High Beams
*
•
Lane Keeping Aid
*
||
DRIVER SUPPORT
334
Do not mount or in any way attach anything on
the windshield that could obstruct the camera/
radar sensor.
WARNING
•
The camera has the same type of limita-
tions as the human eye, i.e., it cannot see
as well in heavy snowfall or rain, thick fog
or in heavy blowing dust or snow. In such
conditions, systems depending on the
camera may experience greatly reduced
functionality or may be temporarily deacti-
vated.
•
Never place any objects, decals, etc., on
the windshield in front of the camera. This
could reduce or block the camera’s func-
tion, and could cause one or more of the
systems that utilize the camera to stop
functioning.
•
Strong sunlight, reflections from the road
surface, ice or snow covering the road, a
dirty road surface, or unclear lane marker
lines may drastically reduce the camera’s
capacity to detect the side of a lane, a
pedestrian, a cyclist or another vehicle.
Radar sensor for other functions
City Safety uses the same radar sensor as
Adaptive Cruise Control. See the article "Radar
sensor limitations" for detailed information.
Related information
•
Radar sensor limitations (p. 319)
•
•
City Safety limitations (p. 334)
City Safety limitations
City Safety
™ may have limited or reduced func-
tionality in certain situations.
The function has several limitations that the driver
should be familiar with:
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's func-
tion.
Slippery driving conditions
The extended braking distance on slippery roads
may reduce City Safety's capacity to help avoid a
collision. In situations of this type, the ABS
brakes and Electronic Stability Control will help
provide braking power and stability.
Backlighting
Strong sunlight, reflections, extreme light con-
trasts, the use of sunglasses, or if the driver is not
looking straight ahead may make the visual warn-
ing signal in the windshield difficult to see.
Heat
If the temperature in the passenger compartment
is very high due to e.g., strong sunlight, the visual
warning signal may be temporarily disabled.
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