2017 Citroen DS4 warning

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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.
Activation
F When switching the ignition on or with the engine running, press this button; the
indicator lamp comes on.
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.
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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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No alert will be given in the following situations:
- i n the presence of immobile objects
(parked vehicles, barriers, street lamps,
road signs...),
-

w
ith vehicles moving in the opposite
direction,
-

d
riving on a sinuous road or a sharp
c o r n e r,
The alert is given by a warning lamp which
comes on in the door mirror on the side in
question as soon as a vehicle - car, lorry,
cycle

- is detected.
For this, the following conditions must be met:
-

a

ll the vehicles must be moving in the
same direction,
-

t

he speed of your vehicle is between 7 and
75 mph (12 and 140 km/h),
-

w

hen you overtake a vehicle with a speed
difference of less than 6 mph (10 km/h),
-

w

hen a vehicle overtakes you with a speed
difference of less than 15 mph (25 km/h),
-

t

he traffic must be flowing normally,
-

i

n the case of an overtaking manoeuvre,
if this is prolonged and the vehicle being
overtaken remains in the blind spot,
-

y

ou are driving on a straight or slightly
curved road,
-

y

our vehicle is not pulling a trailer, a
caravan... -
w hen overtaking (or being overtaken by) a
very long vehicle (lorry, coach...) which is
at the same time detected at the rear in the
blind spot angle and present in the driver's
for ward field of vision,
-

i
n very heavy traffic: vehicles detected in
front and behind are confused with a lorry
or a stationary object,
-

w
hen overtaking quickly.
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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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Front parking sensorsOperating fault
In the event of a malfunction of the
system, when reverse gear is engaged
this warning lamp is displayed in the
instrument panel and/or a message
appears in the screen, accompanied
by an audible signal (short beep).
Contact a CITROËN dealer or a
qualified workshop.
In addition to the rear parking sensors, the
front parking sensors are triggered when an
obstacle is detected in front and the speed of
the vehicle is still below 6 mph (10 km/h).
The front parking sensors are interrupted if
the vehicle stops for more than three seconds
in for ward gear, if no further obstacles are
detected or when the speed of the vehicle
exceeds 6 mph (10 km/h).
The function will be deactivated
automatically if a trailer is being towed
or a bicycle carrier is fitted (vehicle
fitted with a towbar or bicycle carrier
recommended by CITROËN).In bad weather or in winter, ensure
that the sensors are not covered with
mud, ice or snow. When reverse gear is
engaged, an audible signal (long beep)
indicates that the sensors may be dirty.
Certain sound sources (motorcycle,
lorry, pneumatic drill, etc.) may trigger
the audible signals of the parking
sensor system.Deactivation/Activation of the front
and rear parking sensors
The function is deactivated by pressing this
button. The indicator lamp in the button
comes
on.
Pressing this button again reactivates the
function. The indicator lamp in the button
goes
off.
The sound emitted by the speaker
(front or rear) indicates whether the
obstacle is in front or behind.
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FuelCapacity of the tank: approximately 60 litres.
Low fuel level
When the low fuel level in the
tank is reached, this warning lamp
comes on in the instrument panel,
accompanied by an audible warning
and the display of an alert message.
When it first comes on, around
6
litres of fuel remain in the tank.
Refuelling
F Press this button until the automatic opening of the fuel flap is heard.
T

his button remains active for a few
minutes after switching off the ignition. If
necessary, switch the ignition on again to
reactivate it.
F

T
ake care to select the pump that delivers
the correct fuel for your vehicle.
If your vehicle is fitted with Stop &
Start, never refuel with the engine in
STOP mode; you must switch off the
ignition using the key, or the START/
STOP button if your vehicle has
Keyless Entry and Starting.
Additions of fuel must be of at least 5 litres to
be registered by the fuel gauge.
Opening the filler cap may result in an inrush of
air. This vacuum is entirely normal and results
from the sealing of the fuel system.
Until sufficient fuel has been added, every time
the ignition is switched on, this warning lamp
appears, accompanied by an audible signal
and an alert message. When driving, this
audible signal and alert message are repeated
with increasing frequency, as the level drops
towards 0.
You must refuel as soon as possible to avoid
running out.
For more information on Running out of fuel
(Diesel) , refer to the corresponding section.
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Additive level
(Diesel with particle filter)
Topping up
The reservoir must be topped up without delay
by a CITROËN dealer or a qualified workshop.
Used products
Avoid prolonged contact of used oil or
fluids with the skin.
Most of these fluids are harmful to
health or indeed very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Take used oil to a CITROËN dealer or
a qualified workshop (France) or to an
authorised waste disposal site.
According to your version of instrument panel,
the additive reservoir low level is indicated by:
-

f

ixed illumination of the particle
filter warning lamp, accompanied
by an audible signal and a
message that the particle filter
additive level is too low,
or
-

f

ixed illumination of the service
warning lamp, accompanied by
an audible signal and a message
that the particle filter additive
level is too low.
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Particle filter (Diesel)
According to your version of instrument panel, the start of
saturation of the particle emissions filter is indicated by:
- temporary illumination of the service warning lamp,
accompanied by an audible signal
and a message that there is a risk
of blockage of the particle filter.
-

f
ixed illumination of the particle
filter warning lamp, accompanied
by an audible signal and a
message that there is a risk of
blockage of the particle filter,
or
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 40 mph (60 km/h) until the warning lamp
goes off.
If the warning lamp stays on, there is a lack of
additive.
Checking components
Air filter and passenger compartment filter
Oil filter
Unless other wise indicated, check these components in accordance with the manufacturer's service schedule and according to your engine.
Other wise, have them checked by a CITROËN dealer or a qualified workshop.
Refer to the manufacturer's
service schedule for details of the
replacement intervals for these
components.
Replace the oil filter each time the
engine oil is changed.
Refer to the manufacturer's
service schedule for details of
the replacement interval for this
component.
Versions equipped with Stop &
Start are fitted with a 12 V lead-acid
battery of specific technology and
specification.
Its replacement should be carried
out only by a CITROËN dealer or a
qualified workshop.
12 V battery
For more information and the precautions to
take before starting work on the 12 V batter y
,
refer to the corresponding section.
The battery does not require any maintenance.However, check regularly that the
terminals are correctly tightened
(versions without quick release terminals)
and that the connections are clean.
Depending on the environment (e.g. dusty
atmosphere) and the use of the vehicle
(e.g. city driving), replace them twice as often
if necessary .
A clogged passenger compartment filter may
have an adverse effect on the per formance
of the air conditioning system and generate
undesirable odours.
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Practical information