warning CITROEN DS4 2023 Workshop Manual

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.
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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.
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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.
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136
For more information on Energy
economy mode, refer to the
corresponding section.
Key left in
If the key has been left in the ignition
switch at position 2 (Ignition on) , the
ignition will be switched off automatically
after one hour.
To switch the ignition back on, turn the key
to position 1 (Stop) , then back to position
2 (Ignition on) .
Starting/Switching off the
engine with Keyless Entry
and Starting
Starting the engine
It is not necessary to place the electronic key in
the reader.
F

P
lace the gear selector lever at P or N for
vehicles with an automatic gearbox, or
neutral for vehicles with a manual gearbox.
F

W
ith the electronic key inside the vehicle,
press the brake pedal for vehicles with an
automatic gearbox, or fully depress the
clutch pedal for vehicles with a manual
gearbox. F

B
riefly press the "
S TA R T/
STOP " button while maintaining
pressure on the pedal until the
engine starts.
The steering column unlocks and
the engine starts.
Diesel vehicles
Energy economy mode
After switching off the engine (position 1 -
Sto p), for a maximum of 30 minutes you
can still use functions such as the audio and
telematic system, the wipers, dipped beam
headlamps, courtesy lamps, etc.
In temperatures below zero, the
engine will not start until the pre-
heater warning lamp has gone off.
If this warning lamp comes on after pressing the " START/STOP " button, press
down on the brake or clutch pedal until the
warning lamp goes off, without pressing
the " START/STOP " button again, until the
engine starts and runs.
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139
When the vehicle is being driven,
if this warning lamp and the STOP
warning lamp come on, accompanied
by an audible signal and a message
on the multifunction screen, this
indicates that the parking brake is still
on or has not been fully released.
When parking on a slope, direct your
wheels towards the kerb, apply the
parking brake, engage a gear and switch
off the ignition.
Electric parking brake
The electric parking brake combines
2 operating modes:
-

A
utomatic application/release
Application is automatic when the engine stops,
release is automatic on use of the accelerator
(activated by default),
-

M
anual application/release
The parking brake can be applied/released
manually by pulling control lever .
If this warning lamp comes on in
the instrument panel, the automatic
mode is deactivated.
Do not place any object (packet of
cigarettes, telephone...) between the gear
lever and the electric parking brake control
l eve r.
Programming the mode
Depending on the country of sale of the vehicle,
the automatic application when the engine is
switched off and the automatic release when
you press the accelerator can be deactivated.
Activation/deactivation of the system
is done in the vehicle configuration
menu.
The parking brake is locked and unlocked
manually. When the driver’s door is opened, a
loud beep is heard and a message is displayed
if the parking brake has not been applied. It is recommended that you do not apply
the parking brake in very cold conditions
(ice) and during towing (breakdown,
caravan...). Deactivate the automatic
functions and release the parking brake
manually.
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140
Manual application
With the vehicle stationary, to apply the parking
brake regardless of whether the engine is
running or switched off, pull the control lever.
The application of the parking brake is
confirmed by:
When the driver’s door is opened with the
engine running, a message is displayed
accompanied by an audible signal if the parking
brake has not been applied, except in the case
of an automatic gearbox with the gear selector
in position P .
Before leaving the vehicle, ensure
that parking brake warning lamp in the
instrument panel is on fixed, not flashing.
Manual release
With the ignition on or the engine running, to
release the parking brake, press on the brake
pedal or the accelerator, pull then release
control. Full release of the parking brake is confirmed
by:
-
d
isplay of the message "Parking
brake released/off".
If you pull the control lever without
pressing the brake pedal, the parking
brake will not be released and a
warning lamp will come on in the
instrument panel.
Maximum application
If necessary, you can make maximum
application of the parking brake. It is obtained
by means of a long pull on control lever , until
you see the message "Parking brake applied
fully" accompanied by an audible signal.
Maximum application is essential:
-

i
n the case of a vehicle towing a caravan
or a trailer, if the automatic functions are
activated but you are applying the parking
brake manually,
-

w
hen the gradient you are parked on may
vary (e.g. on a ferry, on a lorry, during
towing). In the case of towing, a loaded vehicle or
parking on a gradient, make a maximum
application of the parking brake then turn
the front wheels towards the kerb and
engage a gear when you park.
After a maximum application, the release
time will be longer.
Automatic application, engine
off
With the vehicle stationary, the parking brake
is automatically applied when the engine is
switched off
.
The application of the parking brake is
confirmed by:
-

d
isplay of the message "Parking
brake applied/on".
-

i

llumination of the braking
warning lamp and the P warning
lamp in the control lever,
-

d

isplay of the message "Parking
brake applied". -

t

he braking warning lamp and
the P warning lamp in the
control lever going off,
-
i
llumination of the braking
warning lamp and the P warning
lamp in the control lever ,
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141
Before leaving the vehicle, ensure
that parking brake warning lamp in the
instrument panel is on fixed, not flashing.
Never leave a child alone inside the
vehicle with the ignition on, as they could
release the parking brake.
In the case of towing, a loaded vehicle
or parking on a gradient, turn the front
wheels towards the kerb and engage a
gear when you park.
Automatic release
The electric parking brake releases
automatically and progressively when you
press the accelerator:
F
M
anual gearbox: press down fully on the
clutch pedal, engage 1st gear or reverse,
press on the accelerator pedal and move
of f.
F

A
utomatic gearbox : select position D, M or
R then press the accelerator pedal.
Full release of the parking brake is confirmed
by:
When stationary with the engine running, do
not press the accelerator pedal unnecessarily,
as you may release the parking brake.
Immobilisation of the vehicle
with the engine running
With the engine running and the vehicle
stationary, in order to immobilise the vehicle
it is essential to manually apply the parking
brake by pulling the control lever.
The application of the parking brake is
confirmed by:
When the driver’s door is opened, a message is
displayed accompanied by an audible signal if
the parking brake has not been applied, except
in the case of an automatic gearbox with the
gear selector in position P . Before leaving the vehicle, ensure
that parking brake warning lamp in the
instrument panel is on fixed, not flashing.
Special situations
In some circumstances (engine start, etc.),
the parking brake may automatically adjust its
force. This is normal operation.
To move your vehicle a few centimetres without
starting the engine, with the ignition on, press
the brake pedal and release the parking brake
by pulling
then releasing the control lever. The
full release of the parking brake is confirmed by
the warning lamps in the control lever and in the
instrument panel going off and by the display of
the message "Parking brake released/off ".
- the braking warning lamp and the P warning lamp in the
control lever going off, -

d
isplay of the message "Parking
brake released/off".
-
i
llumination of the braking
warning lamp and the P warning
lamp in the control lever,
-
d
isplay of the message "Parking
brake applied/on".
Emergency braking
In the event of a failure of the main ser vice
brake or in an exceptional situation (e.g. driver
taken ill, under instruction, etc.), a continuous
pull on the control lever will stop the vehicle.
The electronic stability control provides stability
during emergency braking.
If the emergency braking malfunctions,
the message "Parking brake faulty" will be
displayed.
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Driving