04 Comfort and driving pleasure
Adaptive cruise control*
04
178* Option/accessory, for more information, see Introduction.
Changing the speedIn active mode the speed is adjusted 5 km/h
with each press on
or . In active mode
the button
has the same function as but
results in a lower increase in speed. The last
press is stored in the memory.
NOTE
If any cruise control button is held
depressed for more than approx. 1 minute
then cruise control is disengaged. The
engine must be switched off in order to reset
cruise control.
In certain situations, cruise control cannot
be activated. Then the display shows
Cruise control Unavailable, see
page 183.
Set time intervalDifferent 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 distance. One line corre-
sponds to approximately
1 second, 5 lines approximately 2.5 seconds.
The time interval is increased or decreased
with the steering wheel keypad's thumbwheel
(or the buttons
/ for cars without Speed
limiter).
At low speed, when the distances are short, the
adaptive cruise control increases the time
interval slightly.
The adaptive cruise control allows the time
interval to vary noticeably in certain situations
in order to allow the car to follow the vehicle in
front smoothly and comfortably.
Note that a short time interval only allows the
driver a short time to react and take action if
any unforeseen traffic problem should arise.
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
Distance Warning is activated, see page 185.
NOTE
Only use the time interval that is allowed in
accordance with local traffic regulations.
If cruise control does not seem to react to
activation the reason may be that the time
interval to the closest vehicle prevents an
increase in speed.
The higher the speed, the longer the calcu-
lated distance in metres for a specific time
interval.
Temporary deactivation - standby mode
Press the steering wheel button to tempo-
rarily disengage the cruise control and set it in
standby mode - set speed is shown in brackets
in the display, e.g.
(100).
Keypad without Speed limiter*
Press the steering wheel button to tempo-
rarily disengage cruise control and set it in
standby mode.
Standby mode due to driver interventionCruise control is temporarily disengaged and
set in standby mode if:
•the foot brake is used
•the clutch pedal is depressed for longer
than 1 minute7
7Disengaging and selecting a higher or lower gear does not involve standby mode.
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04 Comfort and driving pleasure
Adaptive cruise control*
04
* Option/accessory, for more information, see Introduction.179
•the gear selector is moved to N position
(automatic gearbox)
•the driver maintains a speed higher than
the set speed for longer than 1 minute
The driver must then regulate the speed.
A temporary increase in speed with the accel-
erator pedal, e.g. during overtaking, does not
affect the cruise control setting - the car returns
to the last stored speed when the accelerator
pedal is released.
Automatic standby modeAdaptive cruise control is dependent on other
systems e.g. stability and traction control
(DSTC). If any of these systems stop working
then cruise control is automatically deacti-
vated.
In the event of automatic deactivation a signal
will sound and the message
Cruise control
Cancelled is shown in the display. The driver
must then intervene and adapt the speed and
distance to the vehicle ahead.
An automatic deactivation can be due to:
•engine speed is too low/high
•speed falls below 30 km/h8
•wheels lose traction
•brake temperature is high
•the radar sensor is covered e.g. by wet
snow or heavy rain (radar waves blocked).
Resume set speedCruise control in standby mode is re-activated
with one press on the steering wheel button
- the speed is then set to the last stored
speed.
NOTE
A significant increase in speed may arise
after the speed has been resumed with .
DeactivateThe cruise control is switched off with the
steering wheel button
. The set speed is
cleared and cannot be resumed with the
button.
Keypad without Speed limiterThe cruise control is switched off with a short
press on the steering wheel button
in
standby mode - or with one long press in active
mode. The set speed is cleared and cannot be
resumed with the
button.
Queue Assistant
In cars with automatic gearbox the adaptive
cruise control has the Queue Assistant function
(sometimes also referred to as "Queue
Assist").
Queue Assistant has the following functions:
•Extended speed range
•Change of target
•Automatic braking ceases when stationary
•Automatic activation parking brake.
Note that the lowest programmable speed for
the cruise control is 30 km/h - even though the
cruise control is capable of following another
vehicle down to a standstill, a lower speed
cannot be selected.
Extended speed range
NOTE
In order to activate the cruise control the
driver's door must be closed and the driver
must be wearing the seatbelt.
•With the automatic gearbox the cruise con-
trol can follow another vehicle within the
range of 0-200 km/h - right down to sta-
tionary and up to 200 km/h.
8Does not apply to a car with Queue Assistant - it manages right down to stationary.
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04 Comfort and driving pleasure
Adaptive cruise control*
04
182* Option/accessory, for more information, see Introduction.
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.
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 Warning and Collision Warn-
ing with Auto Brake functions are not operating
either.
The following table presents possible causes
for a message being shown along with the
appropriate action.
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04 Comfort and driving pleasure
Adaptive cruise control*
04
* Option/accessory, for more information, see Introduction.183
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.
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.
DSTC Normal to enable
CruiseCruise control cannot be activated until the Stability and Traction Control system (DSTC) has been
set in Normal mode - see page 168.
Cruise control CancelledThe cruise control has been deactivated - the driver has to regulate the speed.
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04 Comfort and driving pleasure
Distance Warning*
04
* Option/accessory, for more information, see Introduction.185 General
Distance Warning (Distance Alert) is a function
that informs the driver about the time interval
to vehicles in front.
Distance Warning 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.
Orange warning lamp1.
An orange 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 warning is deactivated during the
time the adaptive cruise control is active.
WARNING
Distance warning only reacts if the distance
to the vehicle ahead is shorter than the pre-
set 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 centre
console - in which case the function is handled
by the car's menu system MY CAR under
Settings
Car settingsWarning
distance. For a description of the menu sys-
tem - see page 144.)
Set time interval
Controls and display for time interval.
Time interval - Increase/decrease. Press
up to increase, down to decrease.
Time interval2 - On (during adjustment).
Time interval2 - On (after adjustment).
1NOTE: The illustration is schematic - details may vary depending on car model.2The display shows either "dash" symbol [2] or [3] - they are never shown simultaneously.
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04 Comfort and driving pleasure
Distance Warning*
04
186* 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 177.
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 181.
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
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
City Safety™
04
191
WARNING
Never look into the laser sensor (which
emits spreading invisible laser radiation) at
a distance of 100 mm or closer with magni-
fying optics such as a magnifying glass,
microscope, lens or similar optical instru-
ments - this would involve a risk of eye injury
(the illustration on page 188 shows sensor
location).
For more information on the laser sensor, see
page 9.
Symbols and messages in the display
In conjunction with automatic braking by the
City Safety™ system, one or more symbols
may illuminate on the instrument panel and a
message may appear on its display.A text message can be acknowledged by
briefly pressing the READ button on the direc-
tion indicator stalk.
SymbolMessageMeaning/Action
Auto braking by City SafetyCity Safety™ is braking or has automatically braked.
Windscreen Sensors
blockedThe laser sensor is temporarily non-operational because something is blocking it.
•Remove the object blocking the sensor and/or clean the windscreen in front of the sensor.
Read about the limitations of the laser sensor, see page 189.
City Safety Service
requiredCity Safety™ is not operational.
•Visit a workshop if the message remains - an authorised Volvo workshop is recommended.
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