DRIVER SUPPORT
Collision warning system* -
total number of warnings; see Collision warning
WARNING
limitations
system - operation (p. 231).
Warnings and brake interventions could be
The function has certain limitations - for example,
Collision Warning with Auto Brake is temporarily
implemented late or not at all if the traffic sit-
it is not active until 4 km/h (3 mph).
uation or external influences mean that the
deactivated with reverse gear engaged.
radar or camera sensor cannot detect a
The collision warning system's visual warning sig-
Collision Warning with Auto Brake is not acti-
pedestrian, a vehicle or a cyclist in front cor-
nal may be difficult to notice in the event of
rectly.
vated at low speeds - below 4 km/h (3 mph),
strong sunlight, reflections, when sunglasses are
which is why the system does not intervene in sit-
The sensor system has a limited range for
being worn or if the driver is not looking straight
uations where the car is approaching a vehicle in
pedestrians and cyclists25 - the system can
ahead. The warning sound should therefore
front very slowly, e.g. when parking.
give effective warnings and brake interven-
always be activated.
tions for them at vehicle speeds up to
In situations where the driver demonstrates
On slippery road surfaces the braking distance is
50 km/h (30 mph). For stationary or slow-
active, aware driving behaviour, a collision warn-
moving vehicles, warnings and brake interven-
extended, which may reduce the capacity to avoid
ing may be postponed slightly in order to keep
tions are effective at vehicle speeds up to
a collision. In such situations the ABS and ESC
unnecessary warnings to a minimum.
70 km/h (43 mph).
(p. 184) systems will provide best possible brak-
When Auto Brake has prevented a collision with
Warnings for stationary or slow-moving vehi-
ing force with maintained stability.
cles could be disengaged due to darkness or
a stationary object the car remains stationary for
poor visibility.
a maximum of 1.5 seconds. If the car is braked
NOTE
for a vehicle in front that is moving, then speed is
Warnings and brake interventions for pedes-
reduced to the same speed as that maintained by
The visual warning signal can be temporarily
trians and cyclists are deactivated at vehicle
disengaged in the event of high passenger
speeds exceeding 80 km/h (50 mph).
the vehicle in front.
compartment temperature caused by strong
On a car with manual gearbox the engine stops
sunlight for example. If this occurs then the
The collision warning system uses the same
when Auto Brake has stopped the car, unless the
warning sound is activated even if it is deacti-
radar sensors as the adaptive cruise control
driver manages to depress the clutch pedal
vated in the menu system.
(p. 201).
beforehand.
• Warnings may not appear if the distance
If warnings are perceived as being too frequent
Related information
to the vehicle in front is small or if steer-
or disturbing then the warning distance can be
• Collision warning system* (p. 227)
ing wheel and pedal movements are
reduced. This then leads to the system providing
large, e.g. a very active driving style.
a warning at a later stage, which reduces the
25 For cyclists, the warning and full brake intervention may come very late or simultaneously.
* Option/accessory.
233
DRIVER SUPPORT
Collision warning system* - camera
Strong oncoming light, reflections in the carriage-
The following table presents possible causes for
sensor limitations
way, snow or ice on the road surface, dirty road
a message being shown along with the appropri-
surfaces or unclear lane markings could also sig-
ate action.
The function uses the car's camera sensor,
nificantly reduce camera sensor function when it
which has certain limitations.
is used to scan the carriageway and detect
Cause
Action
The car’s camera sensor is also used - as well as
pedestrians and other vehicles.
by Collision Warning with Auto Brake - by the
The windscreen sur-
Clean the windscreen
The field of vision of the camera sensor is limited,
functions:
face in front of the
surface in front of the
which is why pedestrians, cyclists and vehicles
camera is dirty or cov-
camera from dirt, ice
• Active main beam (p. 92)
cannot be detected in some situations, or they
ered with ice or snow.
and snow.
are detected later than anticipated.
• Road sign information (p. 242)
Thick fog, heavy rain
No action. At times
During very high temperatures the camera is
• Driver Alert Control - DAC (p. 246)
or snow means that
the camera does not
temporarily switched off for about 15 minutes
• Lane Keeping Aid (p. 249).
the camera does not
work during heavy rain
after the engine is started in order to protect
work sufficiently well.
or snowfall.
camera functionality.
NOTE
The windscreen sur-
Wait. It may take sev-
Fault tracing and action
Keep the windscreen surface in front of the
face in front of the
eral minutes for the
If the display shows the message Windscreen
camera sensor free from ice, snow, mist and
camera has been
camera to measure
sensors blocked See manual then this means
dirt.
cleaned but the mes-
the visibility.
that the camera sensor is blocked and cannot
sage remains.
Do not stick or attach anything to the wind-
detect pedestrians, cyclists, vehicles or road
screen in front of the camera sensor as this
markings in front of the car.
Dirt has appeared
Visit a workshop to
may reduce effectiveness or cause one or
between the inside of
have the windscreen
At the same time, this means that - besides Colli-
more of the systems dependent on the cam-
the windscreen and
inside the camera
sion Warning with Auto Brake - the following
era to stop working.
the camera.
cover cleaned - an
functions will not have full functionality either:
authorised Volvo
The camera sensors have limitations similar to
• Active main beam
workshop is recom-
the human eye, i.e. they "see" worse in darkness,
mended.
• Driver Alert Control
heavy snowfall or rain and in thick fog for exam-
• Lane Keeping Aid
ple. Under such conditions the functions of cam-
Related information
era-dependent systems could be significantly
• Road sign information
• Collision warning system* (p. 227)
reduced or temporarily disengaged.
234
* Option/accessory.
-------------------------------------------------------------------------------------------------------------------------------------------------------------
DRIVER SUPPORT
Collision warning system* - symbols
and messages
SymbolA
Message
Specification
Collision warning system
Collision warning system switched off.
OFF
Shown when the engine is started.
The message clears after about 5 seconds or after one press of the OK button.
Collision warning system
The collision warning system cannot be activated.
Unavailable
Shown when the driver attempts to activate the function.
The message clears after about 5 seconds or after one press of the OK button.
Auto Braking was acti-
Auto Brake has been active.
vated
The message clears after one press of the OK button.
Windscreen sensors
Camera sensor (p. 234) is temporarily disengaged.
blocked See manual
Shown in the event of snow, ice or dirt on the windscreen for example.
• Clean the windscreen surface in front of the camera sensor.
Radar blocked See man-
Collision Warning with Auto Brake is temporarily disengaged.
ual
Radar sensor (p. 214) is blocked and cannot detect other vehicles. For example, in the event of heavy rain or if
slush has collected in front of the radar sensor.
Collision warning Service
Collision Warning with Auto Brake is fully or partially disengaged.
required
• Visit a workshop if the message remains - an authorised Volvo workshop is recommended.
A Symbols are schematic - may vary by market and car model.
}}
* Option/accessory.
235
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DRIVER SUPPORT
||
Related information
• Collision warning system* (p. 227)
236
* Option/accessory.
-------------------------------------------------------------------------------------------------------------------------------------------------------------
DRIVER SUPPORT
BLIS
Overview
BLIS (Blind Spot Information System) is a func-
tion designed for providing support for the driver
when driving in dense traffic on roads with sev-
eral lanes in the same direction.
BLIS is a driver's aid intended to provide a warn-
ing about:
• vehicles in the car's blind spot
• quickly approaching vehicles in the left and
right lanes closest to the car.
Keep this surface clean - also on the left-hand side.
WARNING
Position of the BLIS lamp26.
•
To ensure optimal functionality, the areas in
BLIS is a supplementary aid and does not
Indicator lamp
front of the sensors must be kept clean.
work in all situations.
BLIS is no substitute for a safe driving style
BLIS symbol
Related information
and the use of rearview and door mirrors.
• BLIS - operation (p. 238)
BLIS can never replace the driver's responsi-
• BLIS and CTA - symbols and messages
NOTE
bility and attention - it is always the driver's
(p. 241)
responsibility to change lanes in a safe man-
The lamp illuminates on the side of the car
• CTA* (p. 239)
ner.
where the system has detected the vehicle. If
the car is overtaken on both sides at the
same time then both lamps illuminate.
Maintenance
The sensors for the BLIS functions are located
inside the rear wing/bumper on each corner of
the car.
26 NOTE: The illustration is schematic - details may vary depending on car model.
* Option/accessory.
237
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DRIVER SUPPORT
BLIS - operation
console - in which case the function is handled
When BLIS operates
BLIS (Blind Spot Information System) is a func-
by the car's menu system MY CAR27:
tion designed for providing support for the driver
•
Select On or Off at Settings Car
when driving in dense traffic on roads with sev-
settings BLIS.
eral lanes in the same direction.
When BLIS is deactivated/activated the lamp in
Activate/deactivate BLIS
the button goes out/illuminates and the com-
BLIS is activated when the engine is started. This
bined instrument panel confirms the change with
is confirmed by the indicator lamps in the door
a text message. The door panel indicator lamps
panels flashing once.
flash once upon activation.
To extinguish the message:
•
Press the left stalk switch OK button.
or
Principle for BLIS: 1. Zone in blind spot. 2. Zone for
quickly approaching vehicle.
•
Wait approx. 5 seconds - the message extin-
The BLIS function is active at speeds above
guishes.
10 km/h (6 mph).
The system is designed to react when:
• the vehicle is overtaken by other vehicles
• another vehicle is quickly approaching the
vehicle.
Button for activating/deactivating.
When BLIS detects a vehicle in zone 1 or a
The BLIS function can be deactivated/activated
quickly approaching vehicle in zone 2, the door
by pressing the BLIS button on the centre con-
panel BLIS lamp illuminates with a constant glow.
sole.
If the driver activates the direction indicator on
the same side as the warning in this situation
Some combinations of the selected equipment
then the BLIS lamp will change from a constant
leave no vacant space for a button in the centre
glow to flashing with a more intense light.
27 For information on the menu system - MY CAR (p. 113).
238
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DRIVER SUPPORT
CTA*
• Search for Cross Traffic Alert under BLIS
WARNING
The BLIS function CTA (Cross Traffic Alert) is a
and uncheck - the CTA function is then
BLIS does not work in sharp bends.
deactivated.
driver aid intended to warn about crossing traffic
BLIS does not work when the car is being
when the car is reversing. CTA is a supplement
However, the BLIS function remains activated
reversed.
to BLIS (p. 237).
after the CTA has been deactivated.
Limitations
Activate/deactivate CTA
WARNING
CTA is activated when the engine is started. This
• Dirt, ice and snow covering sensors can
is confirmed by the indicator lamps in the door
CTA is a supplementary aid and does not
reduce functionality and make it impossible
panels flashing once.
work in all situations.
to provide warnings. BLIS cannot detect haz-
ards if it is covered.
CTA is no substitute for a safe driving style
and the use of rearview and door mirrors.
• Do not affix any objects, tape or labels in the
area of the sensors.
CTA can never replace the driver's responsi-
bility and attention - it is always the driver's
• BLIS is deactivated when a trailer is con-
responsibility to reverse in a safe manner.
nected to the car's electrical system.
When CTA operates
IMPORTANT
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.
On/Off for parking assistance and CTA sensors.
Related information
In cars equipped with Parking assistance
• BLIS (p. 237)
(p. 254), the CTA function can be deactivated/
activated separately with the parking assistance
• BLIS and CTA - symbols and messages
(p. 241)
On/Off button.
In cars without a button for parking assistance,
the CTA function can be operated in the menu
Principle for CTA.
system MY CAR (p. 113), as follows:
CTA supplements the BLIS function by being
able to see crossing traffic from the side during
}}
* Option/accessory.
239
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