ignition CITROEN DS4 2023 Workshop Manual

11 3
Airbags
General information
This system contributes towards improving
the safety of passengers (with the exception
of the rear centre passenger) in the event of
violent collisions. The airbags supplement the
action of the seat belts fitted with force limiters
(all

except the centre rear passenger belt).
If a collision occurs, the electronic detectors
record and analyse the front and side impacts
sustained in the impact detection zones:
-

i
n the event of a serious impact, the airbags
are deployed instantly and contribute
towards better protection of the passengers
(with the exception of the rear centre
passenger); immediately after the impact,
the airbags deflate rapidly so that they
do not hinder visibility or the exit of the
passengers,
-

i
n the case of a minor or rear impact or in
certain roll-over conditions, the airbags
may not be deployed; the seat belt
alone contributes towards ensuring your
protection in these situations.
The airbags do not operate when the
ignition is switched off.
This equipment will only deploy once. If a
second impact occurs (during the same or
a subsequent accident), the airbag will not
be deployed again.
Impact detection zones
A. Front impact zone.
B. Side impact zone.
The deployment of an airbag is
accompanied by a slight emission of
smoke and a noise, due to the detonation
of the pyrotechnic charge incorporated in
the system.
This smoke is not harmful, but sensitive
individuals may experience slight irritation.
The detonation noise associated with the
deployment of an airbag may result in a
slight loss of hearing for a short time.
Front airbags
Deployment
The airbags are deployed (except the passenger's
front airbag if it is deactivated) in the event of a
serious frontal impact to all or part of the frontal
impact zone A , in the longitudinal centreline of the
vehicle on a horizontal plane and directed from
the front to the rear of the vehicle.
The front airbag inflates between the thorax and
head of the front occupant of the vehicle and the
steering wheel, driver's side, or the dashboard,
passenger's side, to cushion their for ward
movement.
This system protects the driver and front
passenger in the event of a severe frontal
impact in order to limit the risk of injury to the
head and chest.
The driver's airbag is fitted in the centre of the
steering wheel; the front passenger's airbag is
fitted in the dashboard above the glove box.
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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.
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129
Manual child lock
Locking
F Using the ignition key or the integral key, depending on version, turn the red control
as far as it will go:
-

t
o the left on the left-hand rear door,
-

t
o the right on the right-hand rear door.
Unlocking
F Using the ignition key or the integral key, depending on version, turn the red control
as far as it will go:
-

t
o the right on the left-hand rear door,
-

t
o the left on the right-hand rear door.
Do not confuse the child lock control,
which is red, with the back-up locking
control, which is black.
Mechanical system to prevent opening of a rear
door using its interior control.
The control, red in colour, is located on the
edge of each rear door.
It is identified by a mark on the bodywork.
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Electric child lock
Activation
F Press this button.
The indicator lamp in the button comes on,
accompanied by a message in the screen.
This indicator lamp remains on until the child
lock is switched off.
Deactivation
F Press the button again.
The indicator lamp in the button goes off,
accompanied by a message in the screen.
This indicator lamp remains off while the child
lock is switched off.Any other status of the indicator lamp
indicates a fault with the electric child lock.
Have it checked in the dealer network or a
qualified workshop.
This system is independent and in no
circumstances does it take the place of
the central locking control.
Check the status of the child lock each
time you switch on the ignition.
Always remove the key from the ignition
when leaving the vehicle, even for a short
time.
In the event of a serious impact, the
electric child lock is switched off
automatically to permit the exit of the rear
passengers.
Remotely operated system to prevent opening
of the rear doors using their interior controls.
The control is located on the dashboard,
driver's side.
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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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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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Electronic key not recognised
If the electronic key is no longer in the
recognition zone when driving or when you
(later) request switching off the engine, a
message is displayed.F

P
ress and hold the " S TA R T/
STOP " button for about
3
seconds if you want to force
switching off the engine (note
that restar ting will not be
possible without the key).
Ignition on (without starting)
With the "Keyless Entry and Starting" key
inside the vehicle, pressing the " START/STOP"
button, with no action on the pedals , allows
the ignition to be switched on.
F Press the " START/STOP" button,
the instrument panel comes on
but the engine does not start.
F Press the button again to switch off the ignition and allow the
vehicle to be locked.
With the ignition on, the system
automatically goes into energy economy
mode when required to maintain the state
of charge of the battery.
Manual parking brake
Application
F Pull the parking brake lever fully up to immobilise your vehicle.
Releasing
F Pull the parking brake lever up gently, press the release button then lower the lever fully.
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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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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:
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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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Driving