2011 VOLVO V60 Owners Manual

04 Comfort and driving pleasure
Adaptive cruise control*
04

* Option/accessory, for more information, see Introduction.177 The radar sensor and its limitations
Apart from the adaptive cruise control, the
radar sensor is also used by the Collision
Warning with Auto Brake function (see
page 188) and the Distance Alert function (see
page 181). The function of the radar sensor is
to detect cars or larger vehicles in the same
direction, in the same lane.
Modification of the radar sensor could result in
it being illegal to use.
WARNING
The driver must always be observant with
regard to the traffic conditions and intervene
when the adaptive cruise control is not
maintaining a suitable speed or suitable dis-
tance.
The adaptive cruise control cannot handle
all traffic, weather and road conditions.
The Function section and onwards informs
about limitations of which the driver should
be aware before using the adaptive cruise
control.
The driver always bears responsibility for
maintaining the correct distance and speed,
even when the adaptive cruise control is
being used.
WARNING
Accessories or other objects such as auxil-
iary lamps must not be installed in front of
the grille.
WARNING
Adaptive cruise control is not a collision
avoidance system. The driver must inter-
vene if the system does not detect a vehicle
in front.
The adaptive cruise control does not brake
for humans or animals, and not for small
vehicles such as bicycles and motorcycles.
Nor for oncoming, slow or stationary vehi-
cles and objects.
Do not use the adaptive cruise control, for
example, in city traffic, in dense traffic, at
junctions, on slippery surfaces, with a lot of
water or slush on the road, in heavy rain/
snow, in poor visibility, on winding roads or
on slip roads.
The capacity of the radar sensor to detect vehi-
cles in front is reduced significantly:
•if the radar sensor becomes blocked and
cannot detect other vehicles e.g. in heavy
rain or slush, or if other objects have col-
lected in front of the radar sensor.
NOTE
Keep the surface in front of the radar sensor
clean.
•if the speed of vehicles in front is signifi-
cantly different from your own speed.
Examples where the cruise control does
not work optimally
The radar sensor has a limited field of vision. In
some situations another vehicle is not
detected, or the detection is made later than
expected.
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04 Comfort and driving pleasure
Adaptive cruise control*
04
178* Option/accessory, for more information, see Introduction.
The ACC cannot see small vehicles (Dark triangle:
ACC field of vision).
Sometimes the radar sensor is late at
detecting vehicles at close distances, e.g.
a vehicle that drives in between the car and
vehicles in front.
Small vehicles, such as motorcycles, or
vehicles not driving in the centre of the lane
can remain undetected.
In bends the radar sensor may detect the
wrong vehicle or lose a detected vehicle
from view.
Fault tracing and action
If the display shows the message Radar
blocked See manual this means that the
radar signals from the radar sensor are blocked
and that vehicles in front of the car could not
be detected.
In turn this means that the Adaptive Cruise
Control, Distance Alert and Collision Warning
with Auto Brake functions are not operating
either.The following table presents possible causes
for a message being shown along with the
appropriate action.
CauseAction
The radar surface in the grille is dirty or covered with ice or snow.Clean the radar surface in the grille from dirt, ice and snow.
Heavy rain or snow blocking the radar signals.No action. Sometimes the radar does not work during heavy rain or
snowfall.
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04 Comfort and driving pleasure
Adaptive cruise control*
04

* Option/accessory, for more information, see Introduction.179
CauseAction
Water or snow from the road surface swirls up and blocks the radar sig-
nals.No action. Sometimes the radar does not work on a very wet or snowy
road surface.
The radar surface has been cleaned but the message remains.Wait. It could take several minutes for the radar to sense that it is no
longer blocked.
Symbols and messages in the display
SymbolMessageSpecification
Standby mode or active mode without detected vehicle.
Active mode with detected vehicle to which cruise control adapts the speed.
Time interval activated, during adjustment.
Time interval activated, after adjustment.
Turn on DSTC to enable
CruiseCruise control cannot be activated until the stability and traction control function (DSTC) has been set
in Normal mode.
Cruise control CancelledThe cruise control has been deactivated - the driver has to regulate the speed.
Cruise control UnavailableCruise control cannot be activated.
This could be due to:
•brake temperature is high
•the radar sensor is blocked by e.g. wet snow or rain.
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04 Comfort and driving pleasure
Adaptive cruise control*
04
180* Option/accessory, for more information, see Introduction.
SymbolMessageSpecification
Radar blocked See manualCruise control 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.
Cruise control Service
requiredCruise control not working.
•Contact a workshop - an authorised Volvo workshop is recommended.
Press Brake To hold +
acoustic alarm(Only cars with automatic gearbox - "Queue Assist")
The car is stationary and the cruise control will release the foot brake to allow the parking brake to
take over and hold the car, but a fault in the parking brake means the car will shortly begin to roll.
•The driver must brake himself/herself. The message remains and the alarm sounds until the driver
depresses the brake pedal or uses the accelerator pedal.
–Below 30 km/h Only fol-
lowing(Only cars with automatic gearbox - "Queue Assist")
Shown with attempts to activate the cruise control at speeds below 30 km/h without a vehicle in front
within the activation distance (approx. 30 metres).
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04 Comfort and driving pleasure
Distance Alert*
04

* Option/accessory, for more information, see Introduction.181 General
Distance Alert is a function that informs the
driver about the time interval to vehicles in
front.
Distance alert is active at speeds above
30 km/h and only reacts to vehicles driving in
front of the car, in the same direction. No dis-
tance information is provided for oncoming,
slow or stationary vehicles.
Yellow warning light.
A yellow warning lamp in the windscreen illu-
minates with a constant glow if the distance to
the vehicle in front is shorter than the set time
interval.
NOTE
Distance Alert is deactivated during the time
that Adaptive Cruise Control is active.
WARNING
Distance Alert only reacts if the distance to
the vehicle ahead is shorter than the preset
value - the speed of the driver's vehicle is
not affected.
Operation
Press the button in the centre console to switch
the function on or off. The function is switched
on if one lamp is illuminated in the button.
Some combinations of the selected equipment
leave no vacant space for a button in the centreconsole - in which case the function is handled
by the car's menu system MY CAR under
SETUP
Car settingsDistance Alert
On/Off. For a description of the menu system
- see page 142.)
Set time interval
Controls and display for time interval.
Time interval - Increase/decrease
Time interval - On, during adjustment
Time interval - On, after adjustment
Time interval is adjusted with button (4) - Press
up to increase, down decreases.
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04 Comfort and driving pleasure
Distance Alert*
04
182* Option/accessory, for more information, see Introduction.
Different time intervals to the
vehicle in front can be
selected and shown in the
display as 1-5 horizontal lines
- the more lines the longer the
time interval. One line corre-
sponds to approximately
1 second to the vehicle in front, 5 lines approx-
imately 2.5 seconds.
The number of lines for the
selected time interval is
shown during the setting itself
and for several seconds after-
wards. Then a smaller scale
version of the symbol is
shown to the right of the dis-
play. The same symbol is also shown when
adaptive cruise control is activated.
NOTE
The higher the speed, the longer the calcu-
lated distance in metres for a specific time
interval.
The set time interval is also used by the
adaptive cruise control function, see
page 173.
Only use the time interval that is allowed in
accordance with local traffic regulations.
Limitations
The function uses the same radar sensor as
adaptive cruise control and the collision warn-ing system. For more information on the radar
sensor and its limitations, see page 177.
NOTE
Strong sunlight, reflections or strong varia-
tions in light intensity, as well as wearing
sunglasses, could mean that the warning
light in the windscreen cannot be seen.
Poor weather or winding roads could affect
the radar sensor's capacity to detect vehi-
cles in front.
The size of other vehicles could also affect
detection capacity, e.g. motorcycles. This
could mean that the warning lamp illumi-
nates at a shorter distance than the setting
or that the warning is temporarily absent.
Extremely high speeds can also cause the
lamp to illuminate at a shorter distance than
that set due to limitations in sensor range.
Symbols and messages in the display
SymbolMessageSpecification
Set time interval, during adjustment.
Set time interval, after adjustment.
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04 Comfort and driving pleasure
Distance Alert*
04
* Option/accessory, for more information, see Introduction.183
SymbolMessageSpecification
Radar blocked.
See manualDistance Alert temporarily disengaged.
The radar sensor is blocked and cannot detect other vehicles, e.g. in the event that heavy rain or slush
has collected in front of the radar sensor.
Read about the limitations of the radar sensor, see page 177.
Collision warn. Service
requiredDistance Alert and Collision Warning with Auto Brake are 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
City Safety™
04
184* 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 of up to
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 188.
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 window.
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.
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