2012 VOLVO V60 ESP

04 Comfort and driving pleasure
City Safety™
04
188* Option/accessory, for more information, see Introduction.
General
City Safety™ is a function for helping the driver
to avoid a collision when driving in queues,
amongst other things, when changes in the
traffic ahead, combined with a lapse in atten-
tion, could lead to an incident.
The function is active at speeds below
30 km/h and it helps the driver by automatically
braking the car in the event of imminent risk of
collision with vehicles in front, should the driver
not react in time by braking and/or steering
away.
City Safety™ is activated in situations where
the driver should have started braking earlier,
which is why it cannot help the driver in every
situation.
City Safety™ is designed to be activated as
late as possible in order to avoid unnecessary
intervention.
City Safety™ must not be used as an excuse
for the driver to change his/her driving style. If
the driver solely relies on City Safety™ to do
the braking, there will be a collision sooner or
later.
The driver or passengers normally only notice
City Safety™ if a situation arises where the car
is extremely close to being in a collision.If the car is also equipped with a Collision
Warning function with Auto Brake*, these two
systems complement each other. For more
information on Collision Warning function with
Auto Brake, see page 192.
IMPORTANT
Maintenance and replacement of City
Safety™ components must only be per-
formed by a workshop - an authorised Volvo
workshop is recommended.
WARNING
City Safety™ does not engage in all driving
situations or traffic, weather or road condi-
tions.
City Safety™ does not react to vehicles
driving in a different direction from the car,
to small vehicles, motorcycles and bicycles
or to humans and animals.
City Safety™ can prevent collision at a
speed difference of less than 15 km/h - at a
higher speed difference, it is only possible
to reduce collision speed. In order to obtain
full brake function, the driver must depress
the brake pedal.
Never wait for City Safety™ to engage. The
driver always bears responsibility for main-
taining the proper distance and speed.
Function
Laser sensor transmitter and receiver window1.
City Safety™ detects the traffic in front of the
car with a laser sensor fitted in the top edge of
the windscreen. If there is an imminent risk of
collision, City Safety™ will automatically brake
the car, which may be experienced as sudden
braking.
If the speed difference is 4-15 km/h in relation
to the vehicle in front then City Safety™ can
completely prevent a collision.
City Safety™ activates a short, sharp braking
and stops the car in normal circumstances, just
behind the vehicle in front. For most drivers this
is well outside normal driving style and may be
experienced as being uncomfortable.
1NOTE: The illustration is schematic - details may vary depending on car model.
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04 Comfort and driving pleasure
City Safety™
04
189
If the difference in speed between the vehicles
is greater than 15 km/h then City Safety™ may
not prevent the collision on its own. To obtain
full brake force, the driver must depress the
brake pedal. This could then make it possible
to prevent a collision, even at speed differen-
ces above 15 km/h.
When the function is activated and brakes, the
instrument panel display shows a message to
the effect that the function is/has been active.
NOTE
The brake lights come on when City
Safety™ brakes the car.
Operation
NOTE
The City Safety™ function is always ena-
bled after the engine has been started via
key position I and II (see page 80 on key
positions).
On and OffIn certain situations, it may advisable to disable
City Safety™, e.g. where leafy branches could
sweep over the bonnet and/or windscreen.
After starting the engine City Safety™ can be
deactivated as follows:Using MY CAR on the centre console display
screen with its menu system, search and locate
Settings
Car settingsDriving support
systems
City Safety. Select the Off option.
For more information on the menu system MY
CAR, see page 144).
However, the function will be enabled the next
time the engine is started, regardless of
whether the system was enabled or disabled
when the engine was switched off.
WARNING
The laser sensor also transmits laser light
when City Safety™ is disabled manually.
To enable City Safety™ again:
•Follow the same procedure as for disa-
bling, but select the On option.
Limitations
The sensor in City Safety™ is designed to
detect cars and other large vehicles in front of
the car irrespective of whether it is day or night.
However, the sensor has limitations and has
poorer functionality in e.g. heavy snowfall or
rain, dense fog, dust storms or snow flurries.
Mist, dirt, ice or snow on the windscreen may
disrupt the function.Low-hanging objects, e.g. a flag/pennant for
projecting load, or accessories such as auxili-
ary lamps and bull bars that are higher than the
bonnet limit the function.
The infrared light from the sensor in City
Safety™ measures how the light is reflected.
The sensor cannot detect objects with low
reflection capacity. The rear sections of the
vehicle generally reflect the light sufficiently
thanks to the number plate and rear light reflec-
tors.
On slippery road surfaces the braking distance
is extended, which may reduce the capacity of
City Safety™ to avoid a collision. In such sit-
uations the ABS and DSTC systems will pro-
vide best possible braking force with main-
tained stability.
When the car is reversing City Safety™ cannot
be activated.
City Safety™ is not activated at low speeds -
under 4 km/h, which is why the system does
not intervene in situations where a vehicle in
front is being approached very slowly, e.g.
when parking.
Driver commands are always prioritised, which
is why City Safety™ does not intervene in sit-
uations where the driver is steering, braking or
accelerating in a clear manner, even if a colli-
sion is unavoidable.
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04 Comfort and driving pleasure
Collision Warning with Auto Brake & Pedestrian Protection*
04
192* Option/accessory, for more information, see Introduction.
General
Collision Warning with Auto Brake and Pedes-
trian Detection is designed to assist the driver
when there is a risk of colliding with a pedes-
trian or vehicles in front that are stationary or
moving in the same direction.
The collision warning system has the following
three functions.
•Collision Warning – Warns the driver of a
potentially imminent collision.
•Brake Support – Assists the driver to
brake effectively in a critical situation.
•Auto Brake - Brakes the car automatically
in the event of an imminent risk of collision
with a pedestrian or vehicle in front, if the
driver does not himself/herself react in time
by braking and/or steering away. The Auto
Brake function can prevent a collision or
reduce collision speed.
The collision warning system is activated in sit-
uations where the driver should have started
braking a lot earlier, which is why the function
cannot help the driver in every situation.
Collision Warning with Auto Brake is designed
to be activated as late as possible in order to
avoid unnecessary intervention.
The collision warning system must not be used
as an excuse for the driver to change his/her
driving style. If the driver solely relies on Colli-sion Warning with Auto Brake to do the brak-
ing, there will be a collision sooner or later.
The collision warning system and City
Safety™ complement each other. For more
information on City Safety™, see page 188.
IMPORTANT
Maintenance of collision warning system
components must only be performed at a
workshop - an authorised Volvo workshop
is recommended.
WARNING
No automatic system can guarantee
100 % correct function in all situations.
Therefore, never try out the Auto brake sys-
tem by driving towards people - this may
cause serious injuries or risk death.
WARNING
The collision warning system does not
engage in all driving situations or traffic,
weather or road conditions. The collision
warning system does not react to vehicles
driving in another direction to the car or to
animals.
Warning only activated in the event of a high
risk for collision. The Function section and
the section after advise about limitations of
which the driver should be aware before
using Collision Warning with Auto Brake.
Warnings and brake interventions for
pedestrians are switched off at vehicle
speeds exceeding 80 km/h.
Warnings and brake interventions for
pedestrians do not work in darkness and
tunnels - not even when streetlights are lit.
The auto-brake function can prevent a col-
lision or reduce collision speed. To ensure
full brake performance, the driver should
always depress the brake pedal - even when
the car auto-brakes.
Never wait for a collision warning. The driver
is always responsible that the correct dis-
tance and speed are maintained - even
when the collision warning system with
auto-brake is used.
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04 Comfort and driving pleasure
Collision Warning with Auto Brake & Pedestrian Protection*
04
* Option/accessory, for more information, see Introduction.193 Function
Function overview1.
Audio-visual warning signal in the event of
a collision risk.
Radar sensor
Camera sensor
Collision warningTogether with a camera sensor, the radar sen-
sor detects pedestrians, stationary vehicles as
well as vehicles driving in the same direction in
front of the car.
In the event of there being a risk of collision with
a pedestrian or such a vehicle your attention is
drawn with a red flashing warning signal and a
warning sound.
Brake supportIf the risk of collision still increases after the
collision warning then the brake support is acti-
vated. The brake support prepares the brake
system for rapid braking and the brakes are
applied gently, which may be noticed as a
slight jerk.
If the brake pedal is depressed sufficiently
quickly then full brake function is implemented.
Brake support also reinforces the driver's brak-
ing if the system considers that the braking is
not sufficient to avoid a collision.
Auto BrakeIf in this situation the driver has not yet started
to take evasive action and the risk of collision
is imminent then the automatic braking func-
tion is deployed, 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 suffi-
cient to avoid collision.
Operation
Settings are made from MY CAR via the centre
console display screen and menu system. For
information on how the menu system is used,
see page 144.
NOTE
The Brake Support and Auto Brake func-
tions are always enabled - they cannot be
deactivated.
On and OffTo select whether the collision warning system
should be switched on or off: Search with the
menu system MY CAR via the centre console
display screen and locate Settings
Car
settings
Driving support systems
Collision Warning. For information on the
menu system, see page 144.
An activated function is tested at each engine
start by briefly illuminating the warning lamp's
separate points of light.
When starting the engine, the setting that was
selected when the engine was switched off is
obtained automatically.
1NOTE: The illustration is schematic - details may vary depending on car model.
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04 Comfort and driving pleasure
Collision Warning with Auto Brake & Pedestrian Protection*
04
196* Option/accessory, for more information, see Introduction.
Detection of pedestrians
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 & Pedes-
trian Detection is a means of assistance.
It cannot detect all pedestrians in all situa-
tions and it cannot see e.g. partially
obscured pedestrians, people in clothing
that hides the contours of the body or
pedestrians shorter than 80 cm.
•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 detect
pedestrians, 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 with Auto Brake & Pedestrian Protection*
04

* Option/accessory, for more information, see Introduction.197
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 with Auto Brake & Pedestrian Protection*
04
198* 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 195.
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 of heavy rain or if slush has
collected in front of the radar sensor.
Read about the limitations of the radar sensor, see page 181.
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.199 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 202.
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 195.
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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