2011 VOLVO V60 warning

04 Comfort and driving pleasure
Collision Warning & Pedestrian Detection with Auto Brake*
04
190* Option/accessory, for more information, see Introduction.
Activating/deactivating warning signalsThe warning lamp is activated automatically
when the engine is started if the system is
switched on.
The warning sound can be activated/deacti-
vated separately using the options for
On orOff in the menu system MY CAR under
Settings
Car settingsDriver support
systems
Warning sound if risk of
collision.
Set warning distanceThe warning distance regulates the distance at
which the visual and acoustic warnings are
deployed. Select one of the options from
Long, Normal or Short in the menu system
MY CAR under Settings
Car settings
Driver support systemsCollision
Warning
Warning distance.
The warning distance determines the system's
sensitivity. Warning distance
Long provides an
earlier warning. First test with Long and if this
setting produces too many warnings, which
could be perceived as irritating in certain sit-
uations, then change to warning distance
Normal.
Only use warning distance
Short in excep-
tional cases, e.g. for dynamic driving.
NOTE
When the adaptive cruise control is in use
the warning lamp and warning sound will be
used by the cruise control even if the colli-
sion warning system is switched off.
The collision warning system warns the
driver in the event of a risk of a collision, but
the function cannot shorten driver reaction
time.
In order for the collision warning system to
be effective, always drive with the Distance
Alert set at time interval 4 – 5. see
page 181.
NOTE
Even if the warning distance has been set toLong then in certain situations warnings
could be perceived as being late. E.g. in the
event of large differences in speed or if vehi-
cles in front brake heavily.
Checking settingsThe settings required can be controlled on the
centre console display screen. Search with the
menu system MY CAR under Settings
Car
settings
Driver support systems
Collision Warning, see page 142.
Limitations
The collision warning system is active from and
including approx. 4 km/h.
The visual warning signal may be difficult to
notice in the event of strong sunlight, reflec-
tions, when sunglasses are being worn or if the
driver is not looking straight ahead. The warn-
ing sound should therefore always be acti-
vated.
On slippery road surfaces the braking distance
is extended, which may reduce the capacity to
avoid a collision. In such situations the ABS
and DSTC systems will provide best possible
braking force with maintained stability.
NOTE
The visual warning signal can be temporarily
disengaged in the event of high passenger
compartment temperature caused by
strong sunlight for example. If this occurs
then the warning sound is activated even if
it is deactivated in the menu system.
•Warnings may not appear if the dis-
tance to the vehicle in front is small or if
steering wheel and pedal movements
are large, e.g. a very active driving style.
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04 Comfort and driving pleasure
Collision Warning & Pedestrian Detection with Auto Brake*
04

* Option/accessory, for more information, see Introduction.191
WARNING
Warnings and brake interventions could be
implemented late or not at all if the traffic
situation or external influences mean that
the radar or camera sensor cannot detect a
pedestrian or a vehicle in front correctly.
The sensor system has a limited range for
pedestrians and the system therefore pro-
vides effective warnings and brake inter-
ventions at vehicle speeds up to 50 km/h.
For stationary or slow-moving vehicles,
warnings and brake interventions are effec-
tive at vehicle speeds up to 70 km/h.
Warnings for stationary or slow-moving
vehicles could be disengaged due to dark-
ness or poor visibility.
The collision warning system uses the same
radar sensors as adaptive cruise control. For
more information on the radar sensor and its
limitations, see page 177.
If warnings are perceived as being too frequent
or disturbing then the warning distance can be
reduced. This would lead to the system warn-
ing at a later stage, which reduces the total
number of warnings.
When the car is reversing Collision Warning
with Auto Brake cannot be activated.
Collision Warning with Auto Brake is not acti-
vated at low speeds - under 4 km/h, which iswhy the system does not intervene in situations
where the car is approaching a vehicle in front
very slowly, e.g. when parking.
Driver commands are always prioritised, which
is why Collision Warning with Auto Brake does
not intervene in situations where the driver is
steering, braking or accelerating in a clear
manner, even if a collision is unavoidable.
When Auto Brake has prevented a collision
with a stationary object the car remains sta-
tionary for a maximum of 1.5 seconds. If the car
is braked for a vehicle in front that is moving,
then speed is reduced to the same speed as
that maintained by the vehicle in front.
On a car with manual gearbox the engine stops
when Auto Brake has stopped the car, unless
the driver manages to depress the clutch pedal
beforehand.
Camera sensor limitationsThe car's camera sensor is used by the three
functions - Collision Warning with Auto Brake,
Driver Alert Control, see page 195 and Lane
Departure Warning, see page 198.
NOTE
Keep the windscreen surface in front of the
camera sensor clean from ice, snow, mist
and dirt.
Do not attach or fit anything to the wind-
screen in front of the camera sensor, as this
could reduce or prevent the function of one
or more camera-dependent systems.
The camera sensors have limitations similar to
the human eye, i.e. they "see" worse in dark-
ness, heavy snowfall or rain and in thick fog for
example. Under such conditions the functions
of camera-dependent systems could be sig-
nificantly reduced or temporarily disengaged.
Strong oncoming light, reflections in the car-
riageway, snow or ice on the road surface, dirty
road surfaces or unclear lane markings could
also significantly reduce camera sensor func-
tion when it is used to scan the carriageway
and detect pedestrians and other vehicles.
During very high temperatures the camera is
temporarily switched off for about 15 minutes
after the engine is started in order to protect
camera functionality.
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04 Comfort and driving pleasure
Collision Warning & Pedestrian Detection with Auto Brake*
04
192* Option/accessory, for more information, see Introduction.
Detection of pedestrians (Pedestrian
detection)
Optimal examples of what the system regards as
pedestrians with clear body contours.
Optimal performance of the system requires
that the system function that detects pedes-
trians receives as unambiguous information as
possible about the contours of the body - this
implies the opportunity to identify the head,
arms, shoulders, legs, upper and lower body
combined with a normal human pattern of
movement.
If large parts of the body are not visible to the
camera then the system cannot detect a
pedestrian.
•In order for a pedestrian to be detected he/
she must appear full-length and have a
height of at least 80 cm.
•The system cannot detect a pedestrian
carrying larger items.
•The camera sensor's ability to see pedes-
trians at dusk and dawn is limited - just like
the human eye.
•The camera sensor's capacity to detect
pedestrians is deactivated when driving in
darkness and tunnels - even when street-
lights are lit.
WARNING
Collision Warning with Auto Brake is an
assistance tool.
It cannot detect all pedestrians in all situa-
tions and it cannot see e.g. partially
obscured pedestrians, shorter people or
children (below 80 cm) or people in clothing
that hides the contours of the body.
•The driver is always responsible that the
vehicle is driven properly and with a
safety distance adapted to the speed.
Fault tracing and action
If the display shows the message Windscreen
Sensors blocked then this means that the
camera sensor is blocked and cannot detectpedestrians, vehicles or road markings in front
of the car.
In turn this means that the Collision Warning
with Auto Brake, Lane Departure Warning and
Driver Alert Control functions are not operating
with full functionality.
The following table presents possible causes
for a message being shown along with the
appropriate action.
CauseAction
The windscreen sur-
face in front of the
camera is dirty or
covered with ice or
snow.Clean the wind-
screen surface in
front of the camera
from dirt, ice and
snow.
Thick fog, heavy rain
or snow means that
the camera does not
work sufficiently
well.No action. At times
the camera does not
work during heavy
rain or snowfall.
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04 Comfort and driving pleasure
Collision Warning & Pedestrian Detection with Auto Brake*
04

* Option/accessory, for more information, see Introduction.193
CauseAction
The windscreen sur-
face in front of the
camera has beenWait. It may take
several minutes for
CauseAction
cleaned but the
message remains.the camera to meas-
ure the visibility.
CauseAction
Dirt has appeared
between the inside
of the windscreen
and the camera.Visit a workshop to
have the windscreen
inside the camera
cover cleaned - an
authorised Volvo
workshop is recom-
mended.
Symbols and messages in the display
SymbolMessageSpecification
Collis'n
warning
OFFCollision warning system switched off.
Shown when the engine is started.
The message clears after about 5 seconds or after one press of the READ button.
Collision
warn.
Unavaila-
bleThe collision warning system cannot be activated.
Shown when the driver attempts to activate the function.
The message clears after about 5 seconds or after one press of the READ button.
Auto brak-
ing was
activatedAuto Brake has been active.
The message clears after one press of the READ button.
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04 Comfort and driving pleasure
Collision Warning & Pedestrian Detection with Auto Brake*
04
194* Option/accessory, for more information, see Introduction.
SymbolMessageSpecification
Wind-
screen
Sensors
blockedThe camera sensor is temporarily disengaged.
Shown in the event of snow, ice or dirt on the windscreen for example.
•Clean the windscreen surface in front of the camera sensor.
Read about the limitations of the camera sensor, see page 191.
Radar
blocked
See man-
ualCollision Warning with Auto Brake is temporarily disengaged.
The radar sensor is blocked and cannot detect other vehicles. For example, in the event that heavy rain or if slush has
collected in front of the radar sensor.
Read about the limitations of the radar sensor, see page 177.
Collision
warn.
Service
requiredCollision Warning with Auto Brake is fully or partially disengaged.
•Visit a workshop if the message remains - an authorised Volvo workshop is recommended.
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04 Comfort and driving pleasure
Driver Alert System – DAC*
04

* Option/accessory, for more information, see Introduction.195 General information on Driver Alert
System
The Driver Alert System is intended to assist
drivers whose driving ability is deteriorating or
who are inadvertently leaving the lane they are
driving on.
The Driver Alert System consists of two differ-
ent functions, which can either be switched on
at the same time or individually:
•Driver Alert Control (DAC)
•Lane Departure Warning (LDW), see
page 198.
A switched-on function is set in standby mode
and is not activated automatically until speed
exceeds 65 km/h.
The function is deactivated again when speed
decreases to below 60 km/h.
Both functions use a camera which is depend-
ent on the lane having side markings painted
on each side.
WARNING
The Driver Alert System does not work in all
situations but is instead only intended to be
of supplementary assistance.
The driver always has ultimate responsibility
that the car is driven safely.
General information on Driver Alert
Control - DAC
The function is intended to attract the driver's
attention when he/she starts to drive less con-
sistently, e.g. if he/she becomes distracted or
starts to fall asleep.
A camera detects the side markings painted on
the carriageway and compares the section of
the road with the driver's steering wheel move-
ments. The driver is alerted if the vehicle does
not follow the carriageway evenly.
NOTE
The camera sensor has certain limitations,
see page 191.
The objective for DAC is to detect slowly dete-
riorating driving ability and it is primarily
intended for major roads. The function is not
intended for city traffic.
In some cases driving ability is not affected
despite driver fatigue. In which case there may
not be any warning issued for the driver. For
this reason it is always important to stop and
take a break in the event of any signs of driver
fatigue, irrespective of whether or not DAC
issues a warning.
NOTE
The function must not be used to extend a
driving stint. Always plan breaks at regular
intervals and ensure that you are fully
rested.
LimitationIn some cases the system may issue a warning
despite driving ability not deteriorating, for
example:
•if the driver tests the LDW function.
•in strong side winds.
•on rutted road surfaces.
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04 Comfort and driving pleasure
Driver Alert System – DAC*
04
196* Option/accessory, for more information, see Introduction.
Operation
Some settings are made from the centre con-
sole display screen and its menu system. For
information on how the menu system is used,
see page 142.
The current status can be checked on the trip
computer display with the left-hand stalk
switch.
Thumbwheel. Turn until the display showsDriver
Alert. On the second line, the options Off,Standby <65 km/h, Unavailable or Level
mark are shown.
READ confirms or clears a warning in the
memory.
Activating Driver Alert ControlUsing the centre console display screen with
its menu system MY CAR, search and locate
Car settings
Driver Alert. Select the On
option. For information on how the menu sys-
tem is used - see page 142.
The function is activated when speed
exceeds 65 km/h and remains active
as long as the speed is over
60 km/h.
The display shows a level mark with 1-5 bars,
where a low number of bars indicates incon-
sistent driving style. A high number of bars
indicates stable driving.
If the vehicle is driven inconsistently then the
driver is alerted by an acoustic signal as well as
the text message
Driver Alert Time for a
break. The warning is repeated after a time if
driving ability does not improve.
WARNING
An alarm should be taken very seriously, as
a sleepy driver is often not aware of his/her
own condition.
In the event of an alarm or a feeling of tired-
ness; stop the car in a safe manner as soon
as possible and rest.
Studies have shown that it is equally as dan-
gerous to drive while tired as it is under the
influence of alcohol.
Symbols and messages in the display
SymbolMessageSpecification
Driver Alert OFFFunction not switched on.
Driver Alert Standby
<65 km/hThe function is set in standby mode due to speed being lower than 65 km/h.
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04 Comfort and driving pleasure
Driver Alert System – DAC*
04
* Option/accessory, for more information, see Introduction.197
SymbolMessageSpecification
Driver Alert UnavailableThe carriageway does not have clear side markings or the camera sensor is temporarily disengaged.
Read about the limitations of the camera sensor, see page 191.
Driver AlertThe function analyses the driver's driving style.
The number of bars can vary in the range 1-5, where a low number of bars indicates inconsistent
driving ability. A high number of bars indicates stable driving.
Driver Alert Time for a
breakThe vehicle has been driven inconsistently - the driver is alerted by an acoustic warning signal + text.
Windscreen Sensors
blockedThe camera sensor is temporarily disengaged.
Shown in the event of snow, ice or dirt on the windscreen for example.
•Clean the windscreen surface in front of the camera sensor.
Read about the limitations of the camera sensor, see page 191.
Driver Alert Sys Service
requiredThe system is disengaged.
•Visit a workshop if the message remains - an authorised Volvo workshop is recommended.
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