2018 CITROEN DS4 warning

111
Seat belt not fastened/unfastened
warning lamps display
1.Driver's seat belt not fastened/
unfastened warning lamp.
2. Front passenger's seat belt not fastened/
unfastened warning lamp.
If the seat belt is not fastened or is
unfastened, the corresponding warning lamp
1 or 2 illuminates in red on the seat belt and
passenger's front airbag warning lamps display,
accompanied by an audible signal and a
message in the screen.
Rear seat belts
The rear seats are each fitted with a three-point
seat belt and, for the outer seats, a force limiter.
Fastening
F Pull the strap then insert the tongue in the buckle.
F

C
heck that the seat belt is fastened
correctly by pulling the strap.
Unfastening
F Press the red button on the buckle.
F G uide the seat belt as it reels in.
F

O
n the outer seat belts, raise the bar to the
top of the backrest to prevent the tongue
from knocking against the side trim.
Seat belt unfastened warning lamp
in the instrument panel
This warning lamp comes on in the
instrument panel when one or more rear
passengers unfasten their seat belt.
Above approximately 12 mph (20 km/h),
this warning lamp flashes for two minutes
accompanied by an audible signal of increasing
volume. Once these two minutes have elapsed,
this warning lamp remains on until the one or
more rear passengers fasten their seat belt.
Seat belt unfastened warning lamps
display
3. Rear right seat belt warning lamp.
4. Rear centre seat belt warning lamp.
5. Rear left seat belt warning lamp.
When the ignition is switched on, with the engine
running or when the vehicle is moving at less
than about 12 mph (20 km/h), the corresponding
warning lamps 3 , 4 and 5 come on in red for
approximately 30 seconds, if the seat belt is not
fastened.
When the vehicle is moving at more than about
12 mph (20 km/h), the corresponding warning
lamps 3 , 4 or 5 come on in red, accompanied by
an audible signal and a message in the screen, if
a rear passenger has unfastened their seat belt.
05
Safety

11 2
Instructions
The driver must ensure that the passengers
use the seat belts correctly and that they are
all fastened before driving.
Wherever you are seated in the vehicle,
always fasten your seat belt, even for short
journeys.
Do not interchange the seat belt buckles as
they will not completely fulfil their role.
The seat belts are equipped with an inertia
reel which allows the strap length to adjust
automatically to your shape. The seat belt is
stowed automatically when not in use.
Before and after use, ensure that the seat belt
is reeled in correctly.
The lower part of the strap must be positioned
as low as possible on the pelvis.
The upper part must be positioned in the
hollow of the shoulder.
The inertia reels have an automatic blocking
device at the time of a collision, during
sudden braking or if the vehicle turns over.
You can release the device by pulling the
strap firmly and then releasing it so that it
reels in slightly.In order to be effective, a seat belt must:
-
b e tightened as close to the body as
possible,
-

b
e pulled in front of you with a smooth
movement, checking that it does not twist,
-

b
e used to restrain only one person,
-

n
ot show any signs of cuts or fraying,
-

n
ot be converted or modified to avoid
affecting its performance.
In accordance with current safety regulations,
for all repairs on your vehicle's seat belts, go
to a qualified workshop with the skills and
equipment needed, which the dealer network
is able to provide.
Have your seat belts checked regularly in
the dealer network or a qualified workshop,
particularly if the straps show signs of
damage.
Clean the seat belt straps with soapy water or
a textile cleaning product, sold in the dealer
network.
After folding or moving a seat or a rear bench
seat, ensure that the seat belt is positioned
and reeled in correctly. Recommendations for children
Use a suitable child seat if the passenger is
less than 12 years old or shorter than one and
a half metres.
Never use the same seat belt to secure more
than one person.
Never allow a child to travel on your lap.
For more information on Child seats
, refer to
the corresponding section.
In the event of an impact
Depending on the nature and seriousness
of the impact , the pyrotechnic device may
be deployed before and independent of the
airbags. Deployment of the pre-tensioners
is accompanied by a slight discharge of
harmless smoke and a noise, due to the
activation of the pyrotechnic cartridge
incorporated in the system.
In all cases, the airbag warning lamp comes
on.
Following an impact, have the seat belt
system checked, and if necessary replaced,
in the dealer network or by a qualified
workshop.
05
Safety

11 4
Operating fault
If this warning lamp in the instrument
panel comes on, you must contact the
dealer network or a qualified workshop
to have the system checked. The
airbags might no longer deploy in a
crash.
Lateral airbags
This system protects the driver and front
passenger in the event of a severe side impact
to minimise the risk of injury to the chest,
between hip and shoulder.
Each lateral airbag is fitted in the seat backrest
frame, door side.
Impact detection zones
A.Front impact zone.
B. Side impact zone.
Deployment
The airbag is deployed unilaterally in the
event of a severe side impact covering all or
part of side impact zone B , perpendicular to
the longitudinal centreline of the vehicle on a
horizontal plane and directed from the outside
towards the inside of the vehicle.
The lateral airbag inflates between the hip
and shoulder of the front passenger and the
corresponding door trim panel.
Curtain airbags
System contributing towards greater protection
for the driver and passengers (with the
exception of the rear centre passenger) in the
event of a serious side impact in order to limit
the risk of injury to the side of the head.
Deployment
The airbag is deployed at the same time as
the corresponding lateral airbag in the event
of a serious side impact applied to all or part
of the side impact zone B , perpendicular to
the longitudinal centreline of the vehicle on a
horizontal plane and directed from the outside
towards the inside of the vehicle.
The curtain airbag inflates between the front or
rear occupant of the vehicle and the windows.
Malfunction
If this warning lamp in the instrument
panel comes on, you must contact the
dealer network or a qualified workshop
to have the system checked. The
airbags might no longer deploy in a
crash.
In the event of a minor impact or bump on
the side of the vehicle or if the vehicle rolls
over, the airbag may not be deployed.
In the event of a rear or front collision, the
airbag is not deployed.
Each curtain airbag is built into the pillars and
the upper passenger compartment area.
05
Safety

11 8
Deactivating the passenger's
front airbag
Never install a rear ward facing child
restraint system on a seat protected by an
active front airbag. This could cause the
death or serious injury of the child. The warning label present on both sides of the
passenger's sun visor repeats this advice.
In line with current legislation, the following
tables contain this warning in all of the
languages required.
Passenger airbag OFF
05
Safety

11 9
DeactivationOnly the passenger's front airbag can be
deactivated:
F
i
nsert the key in the passenger airbag
deactivation switch,
F

t
urn it to the " OFF" position,
F

t
hen, remove the key keeping the switch in
this position.
Depending on the version you have,
this warning lamp comes on in the
instrument panel and/or in the seat belt
and passenger's front airbag warning
lamps display when the ignition is on
and until the airbag is reactivated.
To assure the safety of your child,
the passenger's front airbag must be
deactivated when you install a rear ward
facing child seat on the front passenger
seat.
Otherwise, the child would risk being
seriously injured or killed if the airbag
were deployed.Reactivating the passenger's
front airbag
When you remove the child seat, turn the
switch to the " ON" position to reactivate the
airbag and so assure the safety of your front
passenger in the event of an impact.
With the ignition on, this warning
lamp comes on in the seat belt and
passenger's front airbag warning
lamps display for approximately
one minute, if the passenger's front
airbag is activated.
05
Safety

133
In case of towing
Driving with a trailer places greater
demands on the towing vehicle and
requires extra care from the driver.
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 performance. The maximum
towed load must be reduced by 10% for every
1,000 metres of altitude.
For more information on the Technical
data of your vehicle and particularly on
towable loads, refer to the corresponding
section.
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.
Side wind
F Take into account the increased sensitivity to 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 this 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 Headlamp
adjustment , refer to the corresponding
section.
The rear parking sensors will be
deactivated automatically to avoid
the audible signal if a genuine DS
AUTOMOBILES towbar is used.
06
Driving

134
Anti-theft protection
Electronic immobiliser
The keys contain an electronic chip which has
a specific code. When the ignition is switched
on, this code must be recognised to allow the
engine to be started.
This electronic engine immobiliser locks the
engine management system a few minutes
after the ignition is switched off and prevents
starting of the engine by anyone who does not
have the key.In the event of a fault, you are
informed by illumination of this
warning lamp, an audible signal
and/or the display of a message,
depending on version.
Starting/Switching off the
engine with the key
Ignition switch
It has 3 positions:
- position 1 (Stop): inserting and removing
the key, steering column locked,
-
position 2 (Ignition on) : steering column
unlocked, ignition on, Diesel preheating,
engine running,
-
position 3 (Starting) .
Ignition on position
It allows the use of the vehicle's electric
equipment or portable devices to be charged.
Once the state of charge of the battery drops
to the reser ve level, the system switches to
energy economy mode: the power supply is
cut off automatically to preser ve the remaining
battery charge. Avoid attaching heavy objects to the key
or the remote control, which would weigh
down on its blade in the ignition switch
and could cause a malfunction.
Switching off the engine leads to a loss of
braking assistance.
Starting the engine
With the parking brake applied and the gearbox
in neutral or position N
or P:
F

d
epress the clutch pedal fully (manual
gearbox),
or
F

p
ress the brake pedal firmly (automatic
gearbox),
F

i
nsert the key into the ignition switch; the
system recognises the code,
F

u
nlock the steering column by simultaneously
turning the steering wheel and the key.
In certain cases, you may have to apply
more force to the steering (wheels on full
lock, for example).
F

W
ith a petrol engine, operate the starter
motor by turning the key to position 3
without pressing the accelerator pedal,
until the engine starts. Once the engine is
running, release the key.
In this case, your vehicle will not start; contact
the dealer network as soon as possible.
06
Driving

135
Wait until this warning lamp goes off in
the instrument panel then operate the
starter motor by turning the key to position
3 without pressing the accelerator pedal,
until the engine starts. Once the engine is
running, release the key.
In wintry conditions, the warning lamp
can stay on for a longer period. When the
engine is hot, the warning lamp does not
come on.
If the engine does not start straight away,
switch off the ignition. Wait a few moments
before operating the starter motor again.
If the engine does not start after several
attempts, do not keep trying: you risk
damaging the starter motor or the engine.
Contact the dealer network or a qualified
workshop.
In temperate conditions, do not leave
the engine at idle to warm up but move
off straight away and drive at moderate
spe ed. Never leave the engine running in
an enclosed area without adequate
ventilation: internal combustion engines
emit toxic exhaust gases, such as carbon
monoxide. Danger of poisoning and death!
In very severe wintry conditions
(temperature below -23°C), to guarantee
correct operation and the longevity of
the mechanical elements of your vehicle,
engine and gearbox, the engine must be
left running for 4 minutes before driving
away.
Switching off the engine
F Stop the vehicle.
F
W ith the engine idling, turn the key to
position 1 .
F

R
emove the key from the ignition switch.
F

T
o lock the steering column, turn the
steering wheel until it locks.
To facilitate unlocking of the steering
column, it is recommended that the
wheels be returned to the straight-ahead
position before switching off the engine. F

C
heck that the parking brake is correctly
applied, particularly on sloping ground.
Never switch off the ignition before the
vehicle is at a complete stop. With the
engine off, the braking and steering
assistance systems are also cut off: risk of
loss of control of the vehicle.
When you leave the vehicle, keep the key
with you and lock the vehicle.
F With a Diesel engine, turn the key to position 2, i
gnition on, to operate the engine
pre-heating system.
06
Driving