Volvo XC90 Excellence (2018 year). Manual — part 21
||
DRIVER SUPPORT
348
2 - Brake support
If the risk of collision has increased further after
the collision warning then the brake support is
activated.
Brake support reinforces the driver’s braking
action if the system considers that the braking is
not sufficient to avoid a collision.
3 - Auto Brake
The automatic brake function is activated last.
If in this situation the driver has not yet started to
take evasive action and the risk of collision is
imminent then the automatic braking function is
deployed - this takes place irrespective of
whether or not the driver brakes. Braking then
takes place with full brake force in order to
reduce collision speed, or with limited brake force
if it is sufficient to avoid a collision.
In connection with automatic braking the seatbelt
tensioner may also be activated. For more infor-
mation see the "Seatbelt tensioner" section.
In some situations, the action of Auto-brake may
begin with light braking and then progress to full
brake action.
When City Safety has prevented a collision with a
stationary object, the car remains stationary in
anticipation of positive action by the driver. If the
car has been braked to avoid collision with a
slower vehicle in front, its speed is reduced to
match that of the vehicle in front.
On cars with manual gearbox, the engine
stops when the Auto-brake function has stop-
ped the car, unless the driver has managed to
depress the clutch pedal beforehand.
The driver can always interrupt a braking inter-
vention by firmly depressing the accelerator
pedal.
When City Safety brakes, the brake lights
come on.
When City Safety is activated and brakes the
vehicle, the driver display shows a text message
to the effect that the function is/has been active.
WARNING
City Safety must not be used as an excuse for
the driver to change his/her driving style. If
the driver relies solely on City Safety to do the
braking, there might be a risk of a collision
sooner or later.
Market limitation
City Safety is not available in all countries. If City
Safety does not appear in the centre display's
Settings
menu, the car is not equipped with this
function.
Search path in the top view of the centre display:
•
Settings
My Car
IntelliSafe
Related information
•
Setting the warning distance for City Safety
(p. 349)
•
Detection of obstacles with City Safety
(p. 350)
•
City Safety when evasive manoeuvres are
prevented (p. 353)
•
City Safety in cross traffic (p. 352)
•
Limitations of City Safety (p. 354)
•
Messages for City Safety (p. 357)
•
DRIVER SUPPORT
349
Setting the warning distance for City
Safety
City Safety is always activated but the driver can
select the warning distance for the function.
The City Safety function cannot be deacti-
vated. It is activated automatically when the
engine/electric operation is started and
remains switched on until the engine/electric
operation is switched off.
The warning distance determines the sensitivity
of the system and regulates the distance at
which the visual, acoustic and haptic warnings
shall be triggered.
To select warning distance:
1. Select
Settings
My Car
IntelliSafe
in
the centre display's top view.
2. Under
City Safety Warning
, select
Late
,
Normal
or
Early
to set the desired warning
distance.
If the
Early
setting produces too many warnings,
which could be perceived as irritating in certain
situations, the
Normal
or
Late
warning distance
can be selected.
When warnings are perceived as being too fre-
quent or disturbing, the warning distance can be
reduced, which reduces the total number of
warnings and instead leads to City Safety giving a
warning at a later stage.
The
Late
warning distance should therefore only
be used in exceptional cases, as in dynamic driv-
ing.
WARNING
•
No automatic system can guarantee
100 % correct function in all situations.
Therefore, never test City Safety by driv-
ing at people, animals or vehicles - this
may cause severe damage and injury and
risk lives.
•
City Safety warns the driver when there is
a risk of a collision, but it cannot shorten
the driver’s reaction time.
•
Even if the warning distance has been set
to
Early
warnings could be perceived as
being late in certain situations, e.g. when
there are large differences in speed or if
vehicles ahead suddenly brake heavily.
•
With the warning distance set at
Early
,
the warnings will come more in advance.
This may mean that the warnings come
more frequently than at the warning dis-
tance
Normal
, but it is recommended
since it can make City Safety more effec-
tive.
The warning with direction indicators for Rear
Collision Warning is deactivated if the warn-
ing distance for collision warning in the City
Safety function is set at the lowest level
"
Late
".
The seat belt pre-tensioning and braking
functions are, however, still active.
Related information
•
•
Detection of obstacles with City Safety
(p. 350)
•
City Safety when evasive manoeuvres are
prevented (p. 353)
•
City Safety in cross traffic (p. 352)
•
Limitations of City Safety (p. 354)
•
Messages for City Safety (p. 357)
•
DRIVER SUPPORT
350
Detection of obstacles with City
Safety
The obstructions that City Safety can detect are
vehicles, cyclists, large animals and pedestrians.
Vehicles
City Safety detects most vehicles that are either
stationary or moving in the same direction as your
car, as well as vehicles described in the "City
Safety in cross traffic" section.
In order that City Safety shall be able to detect a
vehicle in the dark, the vehicle's front and rear
lights must be working and clearly illuminated.
Cyclists
Optimal examples of what City Safety interprets as a
cyclist — with clear body outline and bicycle outline.
Optimal performance requires that the system
function that detects a cyclist must receive the
clearest possible information about the body and
bicycle outline, requiring the ability to identify the
bicycle, head, arms, shoulders, legs, upper and
lower body plus a normal human pattern of move-
ment.
If large parts of the cyclist's body or bicycle are
not visible to the function's camera then the sys-
tem cannot detect a cyclist.
For the function to be able to detect a cyclist,
he/she must be an adult and riding a bicycle
designed 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 wearing clothing that obscures
the body outline.
•
bicycles loaded with large objects.
The driver is always responsible that the vehi-
cle is driven correctly and with a safety dis-
tance adapted to the speed.
Pedestrians
Optimal examples of what the system regards as pedes-
trians with clear body outlines.
For optimal performance, the system function
that detects pedestrians must receive the clear-
est possible information about the body outline,
requiring the ability to identify the head, arms,
shoulders, legs, upper and lower body plus a nor-
mal human pattern of movement.
In order that it shall be possible to detect a
pedestrian there must be a contrast with the
background and this will be affected by such
things as clothes, the background and the
weather. With poor contrast the pedestrian may
either be detected late or not at all, which may
mean that warnings and braking are late or omit-
ted.
DRIVER SUPPORT
351
City Safety can also detect pedestrians in the
dark if they are illuminated by the car's head-
lamps.
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 larger
objects.
The driver is always responsible that the vehi-
cle is driven correctly and with a safety dis-
tance adapted to the speed.
Large animals
Optimum examples of what City Safety interprets as
large animals - standing still or walking slowly and with
clear body outline.
Optimal performance requires that the system
function that detects a large animal (e.g. elk and
horse) must receive the clearest possible infor-
mation about the body outline, requiring the abil-
ity to identify the animal directly from the side in
combination with what is a normal pattern of
movement for the animal.
If parts of the animal's body are not visible to the
function's camera then the system cannot detect
the animal.
City Safety can also detect large animals in the
dark if they are illuminated by the car's head-
lamps.
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 large animals.
•
larger animals seen from the front or from
behind.
•
large animals that run or move quickly.
•
large animals if the background contrast
of the animals is poor - warning and
brake interventions may then be late or
not occur at all.
•
small animals such as dogs and cats, for
example.
The driver is always responsible that the vehi-
cle is driven correctly and with a safety dis-
tance adapted to the speed.
Related information
•
•
Setting the warning distance for City Safety
(p. 349)
•
Detection of obstacles with City Safety
(p. 350)
•
City Safety when evasive manoeuvres are
prevented (p. 353)
•
City Safety in cross traffic (p. 352)
•
Limitations of City Safety (p. 354)
•
DRIVER SUPPORT
352
City Safety in cross traffic
City Safety can help the driver when turning and
crossing the path of another oncoming vehicle at
an intersection.
Sector in which City Safety can detect oncoming cross-
ing vehicles.
For City Safety to detect an oncoming vehicle on
a collision course, the oncoming vehicle must first
enter the sector (1) in which City Safety can ana-
lyse the situation.
The following further criteria must also be fulfil-
led:
•
your car must be travelling at no less than
4 km/h (3 mph)
•
your car must turn to the left in markets with
right-hand traffic (or to the right in left-hand
traffic)
•
the oncoming vehicle must have its head-
lamps switched on.
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 judgement. The driver
is always responsible for ensuring the car
is driven in a safe manner, at the appro-
priate speed, with an appropriate distance
to other vehicles, and in accordance with
current traffic rules and regulations.
Limitations in cross traffic
In some cases City Safety may have difficulty
helping the driver deal with collision risks due to
oncoming cross traffic. Examples are:
•
stability control ESC intervenes in the event
of slippery driving conditions
•
if the oncoming vehicle is detected too late
•
if the oncoming vehicle is obscured by some-
thing
•
if the oncoming vehicle has headlamps
switched off
•
if the oncoming vehicle drives in an unpre-
dictable manner, for example, abruptly
changes lanes at a late stage.
The function uses the car's camera unit,
which has some general limitations, see the
"Limitations for camera unit" section.
The function uses the car's radar unit, which
has some general limitations, see the section
"Limitations for radar unit".
Related information
•
•
Setting the warning distance for City Safety
(p. 349)
•
Detection of obstacles with City Safety
(p. 350)
•
City Safety when evasive manoeuvres are
prevented (p. 353)
•
Limitations of City Safety (p. 354)
•
DRIVER SUPPORT
}}
353
•
Limitations of the camera unit (p. 343)
•
Limitations of the radar unit (p. 334)
City Safety when evasive
manoeuvres are prevented
City Safety has the facility to assist the driver by
automatically braking the car earlier when it is
not possible to avoid a collision by only steering
away.
City Safety assists the driver by continuously
attempting to anticipate whether there are
"escape routes" to the side in case a slow or sta-
tionary vehicle ahead is discovered at a late
stage.
Your car (1) "sees" no options for evading the vehicle
ahead (2) and can therefore auto-brake earlier.
Your car
Slow/stationary vehicle
City Safety does not intervene with the auto-
brake function as long as the driver him/herself
has the opportunity to avoid a collision via a
steering manoeuvre.
However, if City Safety anticipates that an evasive
manoeuvre is not possible due to traffic in an
adjacent lane, the function can assist the driver
by automatically starting to brake at an earlier
stage.
WARNING
•
The ability of City Safety to be able to
predict a specific situation is supplemen-
tary driver support intended to improve
driving safety – it cannot handle all situa-
tions in all traffic, weather and road condi-
tions.
•
City Safety is not a substitute for the driv-
er's attention and judgement. The driver
is always responsible for ensuring the car
is driven in a safe manner, at the appro-
priate speed, with an appropriate distance
to other vehicles, and in accordance with
current traffic rules and regulations.
The function uses the car's camera unit,
which has some general limitations, see the
"Limitations for camera unit" section.
||
DRIVER SUPPORT
354
The function uses the car's radar unit, which
has some general limitations, see the section
"Limitations for radar unit".
Related information
•
•
Setting the warning distance for City Safety
(p. 349)
•
Detection of obstacles with City Safety
(p. 350)
•
City Safety in cross traffic (p. 352)
•
Limitations of City Safety (p. 354)
•
Messages for City Safety (p. 357)
•
Limitations of the camera unit (p. 343)
•
Limitations of the radar unit (p. 334)
Limitations of City Safety
The City Safety function may have limitations in
certain situations.
Surroundings
Low objects
Low-hanging objects, e.g. a flag/pennant for pro-
jecting load, or accessories such as auxiliary
lamps and bull bars that are higher than the bon-
net limit the function.
Skidding
On slippery road surfaces the braking distance is
extended, which may reduce the capacity of City
Safety to avoid a collision. In such situations, the
anti-lock brakes and the stability control ESC
55
will give the best possible braking force with
maintained stability.
Oncoming light
The visual warning signal in the windscreen may
be difficult to notice in the event of strong sun-
light, reflections, when sunglasses are being
worn or if the driver is not looking straight ahead.
Heat
In the event of high passenger compartment
temperature caused by e.g. strong sunlight, the
visual warning signal in the windscreen may be
temporarily disengaged.
The camera and radar unit's field of view
The camera's field of vision is limited, which is
why pedestrians, large animals, cyclists and vehi-
cles in some situations cannot be detected, or
they are detected later than anticipated.
Dirty vehicles may be detected later than others
and if it is dark, motorcycles may be detected late
or not at all.
If a text message in the driver display indicates
that the camera and radar unit is obstructed, City
Safety may be unable to detect pedestrians, large
animals, cyclists, vehicles or road lines ahead of
the car. This means that the functionality of City
Safety may be reduced.
However, an error message is not shown in all
situations where the windscreen sensors are
obstructed. The driver must therefore take care to
keep the area of windscreen in front of the cam-
era and radar unit clear.
Maintenance and replacement of City Safety
components must only be performed by a
workshop - an authorised Volvo workshop is
recommended.
55
Electronic Stability Control
DRIVER SUPPORT
}}
355
Driver intervention
Reversing
When your own car is reversing, City Safety is
temporarily deactivated.
Low speed
City Safety is not activated at very low speeds -
below 4 km/h (3 mph) - and the system there-
fore does not intervene in situations where your
car is approaching a vehicle ahead very slowly,
e.g. when parking.
Active driver
Driver commands are always prioritised, which is
why City Safety does not intervene or postpone
warning/intervention in situations where the
driver is steering and accelerating in a decisive
manner, even if a collision is unavoidable.
Active and aware driving behaviour can therefore
delay a collision warning and intervention in order
to minimise unnecessary warnings.
Miscellaneous
WARNING
•
Warnings and brake interventions could
be implemented late or not at all if a traf-
fic situation or external influences mean
that the camera and radar unit cannot
detect pedestrians, cyclists, large animals
or vehicles correctly.
•
For vehicles to be detected at night, their
headlamps and rear lamp cluster must be
switched on and shining clearly.
•
The camera and radar unit has a limited
range for pedestrians and cyclists. The
system can provide effective warnings
and brake interventions as long as the
relative speed is below 50 km/h
(30 mph). For stationary or slow-moving
vehicles, warnings and brake interven-
tions are effective at vehicle speeds 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 above 70 km/h (43 mph). The
warning and brake intervention for large
animals is less effective at lower speeds.
•
Warnings for stationary or slow-moving
vehicles and large animals could be dis-
engaged due to darkness or poor visibil-
ity.
•
Warnings and brake interventions for
pedestrians and cyclists are deactivated
at vehicle speeds exceeding 70 km/h
(43 mph).
•
Do not place, stick or mount anything on
the outside or inside of the windscreen in
front of or around the camera and radar
unit — this can interfere with camera-
dependent functions.
•
Objects, snow, ice or dirt in the area of
the camera sensor may reduce its func-
tionality, fully deactivate it or give incor-
rect function response.
The function uses the car's camera unit,
which has some general limitations, see the
"Limitations for camera unit" section.
The function uses the car's radar unit, which
has some general limitations, see the section
"Limitations for radar unit".
Related information
•
•
||
DRIVER SUPPORT
356
•
Detection of obstacles with City Safety
(p. 350)
•
City Safety when evasive manoeuvres are
prevented (p. 353)
•
City Safety in cross traffic (p. 352)
•
Messages for City Safety (p. 357)
•
Limitations of the camera unit (p. 343)
•
Limitations of the radar unit (p. 334)
•
DRIVER SUPPORT
357
Messages for City Safety
A number of messages regarding City Safety
can be shown in the driver display.
The following table shows some examples.
Message
Specification
City Safety
Automatic intervention
When City Safety brakes or has done an automatic braking, several of the driver display symbols may be illuminated
in connection with a text message being shown.
City Safety
Reduced functionality Service
required
The system does not function as it should. A workshop should be contacted - an authorised Volvo workshop is
recommended.
A text message can be cleared by briefly press-
ing the
button, located in the centre of the
steering wheel's right-hand keypad.
If a message remains: Contact a workshop – an
authorised Volvo workshop is recommended.
Related information
•
•
Setting the warning distance for City Safety
(p. 349)
•
Detection of obstacles with City Safety
(p. 350)
•
City Safety when evasive manoeuvres are
prevented (p. 353)
•
City Safety in cross traffic (p. 352)
•
DRIVER SUPPORT
* Option/accessory.
358
Rear Collision Warning
The Rear Collision Warning (RCW) function can
help the driver to avoid being hit by a vehicle
approaching from behind.
RCW is activated automatically each time the
engine is started.
The RCW can warn the driver in a vehicle
approaching from behind that a collision is immi-
nent by rapidly flashing the direction indicators.
If, at a vehicle speed below 30 km/h (20 mph),
the RCW function detects that the car is in dan-
ger of being hit from behind, the seatbelt ten-
sioners may tension the front seatbelts and the
Whiplash Protection System safety system is
activated.
Immediately before the collision, RCW may also
activate the foot brake in order to reduce the for-
ward acceleration of the car during the collision.
However, the foot brake is only activated if the
car is stationary. The foot brake releases immedi-
ately if the accelerator pedal is depressed.
Limitations
In certain cases the RCW may have difficulty
helping the driver in the event of a collision risk.
This can be for example:
•
if the vehicle approaching from the rear is
detected too late
•
if the vehicle approaching from the rear
changes lane at the last moment
•
if the vehicle approaching from the rear has a
speed exceeding 80 km/h (50 mph).
In certain markets, RCW does not give a
warning with the direction indicators due to
local traffic regulations - in such cases, this
part of the function is deactivated.
The warning with direction indicators for Rear
Collision Warning is deactivated if the warn-
ing distance for collision warning in the City
Safety function is set at the lowest level
"
Late
".
The seat belt pre-tensioning and braking
functions are, however, still active.
Related information
•
•
Setting the warning distance for City Safety
(p. 349)
•
•
Whiplash Protection System (p. 61)
BLIS
*
The BLIS
56
function is designed to give a warn-
ing of vehicles diagonally behind and to the side
of your car so as to give assistance in heavy traf-
fic on roads with several lanes in the same direc-
tion.
BLIS is a driver aid intended to give a warning of:
•
vehicles in the car's blind spot
•
quickly approaching vehicles in the left and
right lanes closest to the car.
Location of BLIS lamp
57
.
Indicator lamp
The function is activated/deactivated using
the BLIS button in the centre display's func-
tion view.
DRIVER SUPPORT
* Option/accessory.
359
Principle of BLIS
Zone in blind spot
Zone for quickly approaching vehicle.
The BLIS function is active at speeds
above 10 km/h (6 mph).
The system is designed to react when:
•
your car is overtaken by other vehicles
•
another vehicle is quickly approaching your
car.
When BLIS detects a vehicle in Zone 1 or a
quickly approaching vehicle in Zone 2, the indica-
tor lamp on the door mirror on the affected side
illuminates with a constant glow. If the driver acti-
vates the direction indicator on the same side as
the warning, the indicator lamp will change over
from a constant glow to flashing with a more
intense light.
The lamp illuminates on the side of the car
where the system has detected the vehicle. If
the car is overtaken on both sides at the
same time then both lamps illuminate.
WARNING
•
The BLIS function is supplementary driver
support intended to facilitate driving and
make it safer – it cannot handle all situa-
tions in all traffic, weather and road condi-
tions.
•
The responsibility for changing lanes
safely and using good judgement always
rests with the driver.
•
BLIS is not a substitute for the driver's
attention and judgement. The driver is
always responsible for ensuring the car is
driven in a safe manner, at the appropri-
ate speed, with an appropriate distance to
other vehicles, and in accordance with
current traffic rules and regulations.
Related information
•
•
•
•
56
Blind Spot Information Systems
57
NOTE: The illustration is schematic - details may vary depending on car model.
DRIVER SUPPORT
* Option/accessory.
360
Activate/deactivate BLIS
*
The BLIS
58
function can be activated/deacti-
vated.
Location of BLIS lamp
59
.
Indicator lamp
The function is activated/deactivated using
the BLIS button in the centre display's func-
tion view.
–
Tap on the
BLIS
button in function view.
> BLIS is activated/deactivated - a green/
grey indicator is shown in the button.
If BLIS is activated when starting the engine, the
function is confirmed by the door mirror indicator
lamps blinking once.
If BLIS was deactivated when the engine was
switched off, it will continue to be deactivated
when the engine is next started and no indicator
lights will then be illuminated.
Related information
•
•
•
Limitations of BLIS
*
The BLIS
60
function may have limitations in cer-
tain situations.
Examples of limitations:
•
Dirt, ice and snow covering the sensors may
reduce the functions and deactivate alerts.
•
The BLIS function is automatically deacti-
vated if a trailer, bicycle rack or similar is con-
nected to the car's electrical system.
•
For optimal performance of BLIS, no bicycle
rack, luggage carrier or similar should be
mounted on the car's towbar.
WARNING
•
BLIS does not work on sharp bends.
•
BLIS does not work when the car is
reversing.
Sensors
The sensors for BLIS are located inside each
corner of the rear wing/bumper. The sensors are
also used by the Cross Traffic Alert (CTA) func-
tion.
58
Blind Spot Information
59
NOTE: The illustration is schematic - details may vary depending on car model.
60
Blind Spot Information
DRIVER SUPPORT
}}
* Option/accessory.
361
Keep the surface clean - on both the left and right-hand
sides of the car.
•
To ensure optimal functionality, the surfaces
in front of the sensors must be kept clean.
•
Do not affix any objects, tape or labels in the
area of the sensors.
Repair of the BLIS and CTA functions' com-
ponents or repainting the bumpers must only
be performed by a workshop - an authorised
Volvo workshop is recommended.
Related information
•
•
•
•
•
Limitations of Cross Traffic Alert (p. 363)
Cross Traffic Alert
*
CTA
61
is a driver support that supplements
BLIS
62
and is designed to warn of traffic cross-
ing behind the car when it is reversing.
Principle of CTA.
CTA supplements BLIS by detecting the
approach of crossing traffic during reversing,
such as when reversing out of a parking space.
CTA is primarily designed to detect vehicles. In
favourable conditions it may also be able to
detect smaller objects, such as cyclists and
pedestrians.
CTA is only active if the car rolls backwards or if
reverse gear has been selected.
61
Cross Traffic Alert
||
DRIVER SUPPORT
* Option/accessory.
362
If CTA has sensed that something is approaching
from the side, this is also indicated with:
•
an acoustic signal - the sound is heard in the
left-hand or right-hand speaker according to
the direction from which the object
approaches.
•
an illuminated icon in the PAS
63
graphics on
the screen.
•
an icon on the Park assist camera top view.
Illuminated icon for CTA in the PAS graphics on the
screen
64
.
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 car
safely and using good judgement always
rests with the driver.
•
Cross Traffic Alert is not a substitute for
the driver's attention and judgement. The
driver is always responsible for ensuring
the car 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
•
Activate/deactivate Cross Traffic Alert
•
•
Limitations of Cross Traffic Alert (p. 363)
•
•
Activate/deactivate Cross Traffic
Alert
*
The CTA
65
function can be deactivated.
On/Off
Press the
Cross Traffic Alert
button in the centre display's
function view.
•
GREEN button indication - CTA is activated.
•
GREY button indication - CTA is deactivated.
CTA is activated automatically each time the
engine is started.
Related information
•
•
Limitations of Cross Traffic Alert (p. 363)
•
•
62
Blind Spot Information
63
Park Assist
64
NOTE: The illustration is schematic - details may vary depending on car model.
65
Cross Traffic Alert
DRIVER SUPPORT
}}
363
Limitations of Cross Traffic Alert
The CTA
66
function may have limitations in cer-
tain situations.
CTA does not perform optimally in all situations
but has some limitations. For example, the CTA
sensors cannot "see" through other parked vehi-
cles or obstructing obstacles.
Here are some examples of situations where
CTA’s "field of vision" may be already limited and
approaching vehicles cannot therefore be
detected until they are very close:
The car is parked deep inside a parking slot.
In an angled parking slot CTA may be completely “blind”
on one side.
Blind CTA sector.
Sector in which CTA can detect/“see”.
However, as your car slowly reverses, the angle it
makes with the obstructing vehicle/object
changes and the blind sector rapidly decreases.
Examples of further limitations:
•
Dirt, ice and snow covering the sensors may
reduce the functions and deactivate alerts.
•
CTA is automatically deactivated if a trailer,
bicycle rack or similar is connected to the
car's electrical system.
•
For optimal performance of CTA, no bicycle
rack, luggage carrier or similar should be
mounted on the car's towbar.
Sensors
The sensors for CTA are located inside each cor-
ner of the rear wing/bumper. The sensors are
also used by the BLIS
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function.
Keep the surface clean - on both the left and right-hand
sides of the car.
•
To ensure optimal functionality, the surfaces
in front of the sensors must be kept clean.
•
Do not affix any objects, tape or labels in the
area of the sensors.
Repair of the BLIS and CTA functions' com-
ponents or repainting the bumpers must only
be performed by a workshop - an authorised
Volvo workshop is recommended.
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Cross Traffic Alert
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Blind Spot Information
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