sensor CITROEN DS4 2010 User Guide

133
Welcome lighting
The remote switching on of the lighting makes
your access to the vehicle easier in poor light.
It is activated depending on the ambient light
level detected by the sunshine sensor.
Switching onSwitching off
F Press the open padlock on the
remote control or one of the front
door handles with the "Keyless
Entry and Starting" system.
The sidelamps and dipped beam headlamps,
as well as the side spotlamps, located under
the door mirrors, come on; your vehicle is also
unlocked. Activation or deactivation, as well as
the duration of the lighting duration
for the welcome lighting can be set
via the vehicle configuration menu.
Programming
The welcome lighting switches off automatically
after a programmed time, when the ignition is
switched on or on locking the vehicle.
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Lighting and visibility

138
Automatic rain sensitive windscreen wipers
Briefly push stalk downwards.The instruction is confirmed by
a wiping cycle, accompanied by
illumination of this warning lamp
in the instrument panel and an
activation message.
Switching off
Briefly push stalk downwards again.The instruction is confirmed by
this warning lamp going off in the
instrument panel and/or the display of
a deactivation message.
The automatic rain sensitive
windscreen wipers must be reactivated
if the ignition has been off for more
than one minute.
Operating fault
If an automatic rain sensitive wiper malfunction
occurs, the wipers will operate in intermittent
mode.
Contact a CITROËN dealer or a qualified
workshop.
Do not cover the rain sensor, linked with
the sunshine sensor and located in the
centre of the windscreen behind the rear
view mirror.
Switch off the automatic rain sensitive
wipers when using an automatic car wash.
In winter, it is advisable to wait until the
windscreen is completely clear of ice
before activating the automatic rain
sensitive wipers.
Switching on
The windscreen wipers operate automatically, without any action on the part of the driver, if rain is
detected (sensor behind the rear view mirror), adapting their speed to the intensity of the rainfall.
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Lighting and visibility

165
Advice
Front airbags
Do not drive holding the steering wheel by its
spokes or resting your hands on the centre
part of the wheel.
Passengers must not place their feet on the
dashboard.
Do not smoke as deployment of the airbags
can cause burns or the risk of injury from a
cigarette or pipe.
Never remove or pierce the steering wheel or
hit it violently.
Do not fit or attach anything to the steering
wheel or dashboard, this could cause injuries
with deployment of the airbags.
Lateral airbags
Use only approved covers on the seats,
compatible with the deployment the lateral
airbags. For information on the range of
seat covers suitable for your vehicle, you
can contact a CITROËN dealer.
Do not fix or attach anything to the seat
backs (clothing...). This could cause injury
to the chest or arms if the lateral airbag is
deployed.
Do not sit with the upper part of the body
any nearer to the door than necessary.
Sit in a normal upright position.
Wear a correctly adjusted seat belt.
Do not leave anything between the occupants
and the airbags (a child, pet, object...), nor
fix or attach anything close to the inflation
trajectory of the airbags; this could cause
injuries during their deployment.
Never modify the original definition of your
vehicle, particularly in the area directly
around the airbags.
After an accident or if the vehicle has been
stolen or broken into, have the airbag
systems checked.
All work on the airbag system must be
carried out by a CITROËN dealer or a
qualified workshop.
Even if all of the precautions mentioned
are observed, a risk of injury or of minor
burns to the head, chest or arms when an
airbag is deployed cannot be ruled out. The
bag inflates almost instantly (within a few
milliseconds) then deflates within the same
time discharging the hot gas via openings
provided for this purpose.
Curtain airbags
Do not fix or attach anything to the roof.
This could cause injury to the head if the
curtain airbag is deployed.
If fitted on your vehicle, do not remove the
grab handles installed on the roof, they play
a part in securing the curtain airbags.
For the airbags to be fully effective, observe the safety recommendations below:
The vehicle's front door panels include side
impact sensors.
A damaged door or any unauthorised or
incorrectly executed work (modification or
repair) on the front doors or their interior
trim could compromise the operation of
these sensors - Risk of malfunction of the
lateral airbags!
Such work must only be done by a
CITROËN dealer or a qualified workshop.
05
Safety

185
When towing
Distribution of loads
F Distribute the load in the trailer so that the heaviest items are as close as possible to
the axle and the nose weight approaches
the maximum permitted without exceeding
it.
Air density decreases with altitude, thus
reducing engine per formance. Above
1
000 metres, the maximum towed load must
be reduced by 10
% for every 1 000 metres of
altitude.
Side wind
F Take into account the increased sensitivity to side wind.
Cooling
Towing a trailer on a slope increases the
temperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
F

T
o lower the engine speed, reduce your
speed.
The maximum towed load on a long incline
depends on the gradient and the exterior
temperature.
In all cases, keep a check on the coolant
temperature.
F

I
f the warning lamp and the STOP
warning lamp come on, stop the
vehicle and switch off the engine
as soon as possible.
Braking
Towing a trailer increases the braking distance.
To avoid overheating of the brakes, the use of
engine braking is recommended.
Ty r e s
F Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
F Check the electrical lighting and signalling on the trailer and the headlamp beam
height of your vehicle.
For more information on Adjusting the
headlamp beam height , refer to the
corresponding section.
For more information on Weights
, refer
to the corresponding section.
The rear parking sensors will be
deactivated automatically to avoid the
audible signal if a genuine CITROËN
towbar is used.
If the exterior temperature is high, it
is recommended that the engine be
allowed to idle for 1 to 2 minutes after
the vehicle comes to a stop, to facilitate
its cooling.
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Driving

204
Tyre under-inflation detection
System which automatically checks the
pressures of the tyres while driving.
The system continuously monitors the
pressures of the four tyres, as soon as the
vehicle is moving.Driving with under-inflated tyres
increases fuel consumption.The tyre pressures for your vehicle can
be found on the tyre pressure label.
The tyre pressures must be checked
when the tyres are cold (vehicle
stopped for 1 hour or after driving for
less then 6 miles (10 km) at moderate
speed). Other wise, add 0.3 bar to the
values indicated on the label.
For more information on Identification
markings
, including the tyre pressure
label, refer to the corresponding
section.
This system does not avoid the need
to check the tyre pressures regularly
(including the spare wheel) and before
a long journey.
Driving with under-inflated tyres
adversely affects road holding,
extends braking distances and causes
premature tyre wear, particularly under
arduous conditions (vehicle loaded,
high speed, long journey).
The tyre under-inflation detection system is an
aid to driving which does not replace the need
for vigilance on the part of the driver. Pressure sensors are located in the valve of
each tyre (except the spare wheel).
The system triggers an alert if a drop in
pressure is detected in one or more tyres.
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205
Under-inflation alert
The loss of pressure detected does not
always lead to visible deformation of
the tyre.
Do not rely on just a visual check.This alert is also displayed when one or
more wheels is not fitted with a sensor
(e.g. a space-saver or steel spare
wheel).
The alert is maintained until the tyre or
tyres concerned is reinflated, repaired
or replaced.
The spare wheel (space-saver type or
a steel rim) does not have a sensor.
The alert is given by the fixed
illumination of this warning lamp,
accompanied by an audible signal,
and depending on equipment, the
display of a message.
In the event of a problem on one of the tyres,
the symbol or the message appears, depending
on equipment, to identify it.
F

R

educe speed immediately, avoid sudden
steering movements or harsh brake
applications.
F
S
top as soon as it is safe to do so.
Operating fault
The flashing and then fixed
illumination of the under-inflation
warning lamp accompanied by the
illumination of the service warning
lamp indicates a fault with the system.
Go to a CITROËN dealer or a qualified
workshop
to have the system checked or,
following the repair of a puncture, to have the
original wheel, equipped with a sensor, refitted.
F
I
f you have a compressor (e.g. the one in
the temporary puncture repair kit), check
the four tyre pressures when cold.
I

f it is not possible to check the tyre
pressures at the time, drive carefully at
reduced speed.


or
F

I

n the event of a puncture, use the
temporary puncture repair kit or the spare
wheel (depending on equipment).
Any tyre repair or replacement on a wheel
fitted with this system must be carried out by a
CITROËN dealer or a qualified workshop.
If after changing a tyre, a wheel is not detected
by your vehicle (e.g. fitting snow tyres),
you must have the system reinitialised by a
CITROËN dealer or a qualified workshop. In this case, monitoring of the tyre pressures is
not assured.
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Driving

209
Lane departure warning system
System which detects the involuntary crossing
of longitudinal traffic lane markings on the
ground (solid or broken line).
Sensors, fitted below the front bumper, trigger
a warning if the vehicle drifts over a lane
marking (speed higher than 50 mph (80 km/h)).
This system is particularly useful on motor ways
and main roads.The lane departure warning system
cannot in any circumstances replace
the need for vigilance on the part of the
driver.
It is necessary to observe driving
regulations and take a break every
two
hours.
Deactivation
F Press this button again, the indicator lamp goes off.
The status of the system remains in the
memory when the ignition is switched off. No warning is transmitted while the direction
indicator is active and for approximately
20
seconds after the direction indicator is
switched off.
A warning may be transmitted if a direction
marking (e.g. arrow) or non-standard marking
(e.g. graffiti) is crossed.
Operating fault
The detection may be impeded:
- i f the sensors are dirty (mud, snow...),
-

i
f the markings on the ground are
worn,
-

i
f there is little contrast between
the markings on the ground and
the road sur face.
In the event of a malfunction, the
service warning lamp comes on,
accompanied by an audible signal
and a message in the screen.
Contact a CITROËN dealer or a qualified
workshop.Detection
You are warned by the vibration of the driver's
seat cushion:
-

o
n the right-hand side, if the marking on
the ground has been crossed on the right,
-

o
n the left-hand side, if the marking on the
ground has been crossed on the left.
Activation
F When switching the ignition on or with the engine running, press this button; the
indicator lamp comes on.
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Driving

210
Blind spot monitoring system
This driving assistance system warns the driver
of the presence of another vehicle in the blind
spot angle of their vehicle (areas masked from
the driver's field of vision), as soon as this
presents a potential danger.
Operation
This system is designed to improve safety when driving and is in no circumstances a
substitute for the use of the interior rear view mirror and door mirrors. It is the driver's
responsibility to constantly check the traffic, to assess the distances and relative speeds of
other vehicles and to predict their movements before deciding whether to change lane.
The blind spot sensor system can never replace the need for vigilance on the part of
the
d
river. F

O
n switching on the ignition, or engine
running, press this button to activate the
function; the warning lamp comes on.
Sensors fitted in the front and rear bumpers
monitor the blind spots.
A warning lamp appears in the door mirror on
the side in question:
-
i
mmediately, when being overtaken,
-
a
fter a delay of about one second, when
overtaking a vehicle slowly.
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212
Operating fault
The system may suffer temporary
interference in certain weather
conditions (rain, hail...).
In particular, driving on a wet sur face
or moving from a dry area to a wet area
can cause false alerts (for example, the
presence of a fog of water droplets in
the blind spot angle is interpreted as a
vehicle).
In bad or wintry weather, ensure that
the sensors are not covered by mud,
ice or snow.
Take care not to cover the warning
zone in the door mirrors or the
detection zones on the front and rear
bumpers with adhesive labels or other
objects; they may hamper the correct
operation of the system.
F

T

o deactivate the system, press this button
again; the warning lamp goes off.
The state of the system remains in memory on
switching off the ignition.
The system is automatically
deactivated when towing with a towbar
approved by CITROËN. In the event of a fault, the warning lamp in the
button flashes then goes off.
Have it checked by a CITROËN dealer or a
qualified workshop.
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Driving

221
Parking sensors
This system indicates the proximity of an
obstacle (e.g. pedestrian, vehicle, tree, gate)
which comes within the field of detection of
sensors located in the bumper.
Certain types of obstacle (e.g. stake,
roadworks cone) detected initially will no longer
be detected at the end of the manoeuvre, if
they are located in blind spots in the sensors'
field of detection.
This system cannot in any circumstances replace
the need for vigilance on the part of the driver.
The system is switched on by engaging reverse
g e a r.
This is confirmed by an audible signal.
The system is switched off when you come out
of reverse gear.
Rear parking sensors
The proximity information is given by an
intermittent audible signal, the frequency of which
increases as the vehicle approaches the obstacle.
The sound emitted by the speaker (right-hand or
left-hand) indicates the side on which the obstacle
is located.
When the distance between the vehicle and
the obstacle becomes less than approximately
thirty centimetres, the audible signal becomes
continuous.
Visual assistance
Audible assistance
This supplements the audible signal by
displaying bars in the screen which move
progressively nearer to the vehicle.
When the obstacle is very close, the "Danger"
symbol is displayed in the screen.
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Driving