2023 CITROEN DS3 CROSSBACK ECU

13Instruments01
Seat belts not fastened/unfastenedFixed or flashing, accompanied by an
increasing audible signal.
A seat belt has not been fastened or has been
unfastened.
Orange warning/indicator lamps
Service
Temporarily on, accompanied by the
display of a message.
One or more minor faults, for which there is/are
no specific warning lamp(s), have been detected.
Identify the cause of the fault using the message
displayed in the instrument panel.
It is possible to deal with some faults yourself,
such as changing the battery of the remote
control.
For other faults, such as with the tyre under-
inflation detection system, carry out (3).
Fixed, accompanied by the display of a
message.
One or more major faults, for which there is/are
no specific warning lamp(s), have been detected.
Identify the cause of the fault using the message
displayed in the instrument panel, then carry out
(3).
Fixed, accompanied by the message
"Parking brake fault".
Automatic release of the electric parking brake is
unavailable.
Carry out (2).
Service warning lamp fixed and service spanner flashing then fixed.
The servicing interval has been exceeded.
The vehicle must be serviced as soon as possible.
Only with BlueHDi Diesel engines.
BrakingFixed.
A minor fault with the braking system has
been detected.
Drive carefully.
Carry out (3).
Malfunction (with electric parking brake)Fixed, accompanied by the message
"Parking brake fault".
The vehicle cannot be immobilised with the
engine running.
If manual application and release commands are
not working, the electric parking brake control
lever is faulty.
The automatic functions must be used at all times
and are automatically re-enabled in the event of a
control lever fault.
Carry out (2).
Fixed, accompanied by the
message "Parking brake
fault".
The parking brake is faulty: manual and
automatic functions may not be working.
When stationary, to immobilise the vehicle:
►  Pull and hold the control lever for
approximately 7 to 15 seconds, until the indicator
lamp comes on on the instrument panel. If this procedure does not work, secure the
vehicle:
► 
Park on a level surface.
►  With a manual gearbox, engage a gear.
►  With an automatic gearbox or drive selector,
select P, then place the supplied chock against
one of the wheels.
Then carry out (2).
Deactivation of the automatic functions (with
electric parking brake)
Fixed.
The "automatic application" (on switching
off the engine) and "automatic release" (on
acceleration) functions are deactivated.
If automatic application/release is no longer
possible:
►  Start the engine.
►  Use the control lever to apply the parking
brake.
►  Take your foot fully off the brake pedal.
►  Hold the control lever pressed in the release
direction for between 10 and 15 seconds.
►  Release the control lever.
►  Depress and hold the brake pedal.
►  Hold the control lever in the “Application”
direction for 2 seconds.
►  Release the control lever and the brake pedal.
Anti-lock braking system (ABS)Fixed.
The anti-lock braking system has a fault.
The vehicle retains conventional braking.

31
Access02

Manual
►  Press this button to lock/unlock the vehicle
(doors and boot) from inside the vehicle.
The indicator lamp comes on to confirm central
locking of the vehicle.
The central locking does not take place if
one of the doors is open.
To unfold the exterior handles, press the
button once when the vehicle is locked or
twice when it is unlocked.
When locking / deadlocking from the
outside
When the vehicle is locked or deadlocked from
the outside, the indicator lamp flashes and the
button is inoperative.
►  After normal locking, pull one of the interior
door controls to unlock the vehicle.
►  After deadlocking, it is necessary to use
the remote control, the “Keyless Entry and
Starting” system or the integral key to unlock
the vehicle.
Automatic (anti-intrusion
security)
The doors and boot lock automatically when
driving (speed above 6 mph (10 km/h)).
To deactivate/reactivate this function (activated
by default):
►  Press the button until a confirmation message
appears.
Transporting long or bulky objects
Press the central locking control to drive
with the boot open and the doors locked.
Otherwise, every time the speed of the vehicle
exceeds 6 mph (10 km/h), the locks will
rebound and an alert will appear.
Advice
Remote control
The remote control is a sensitive, high-
frequency device; avoid handling it in your
pocket, due to the risk of unintentionally
unlocking the vehicle.
Avoid pressing the remote control buttons
while out of range of the vehicle, due to
the risk of rendering the remote control
inoperative. It would then be necessary to
reset it.
Anti-theft protection
Do not modify the electronic vehicle
immobiliser, as this might result in
malfunctions.
Locking the vehicle
Driving with the doors locked could make
it more difficult for the emergency services to
enter the vehicle in an emergency.
As a safety precaution, take the electronic key
with you when leaving the vehicle, even for a
short time.
Purchasing a second-hand vehicle
Have the key codes memorised by
a dealer, to ensure that the keys in your
possession are the only ones able to start the
vehicle.
Emergency procedures
Lost keys, remote control,
electronic key
Go to a dealer with the vehicle’s registration
certificate and your personal identification
documents.
The dealer will be able to retrieve the key code
and the transponder code, enabling a new key to
be ordered.

39
Ease of use and comfort03
Cushion height and angle

►  Tilt the rear of the control upwards or
downwards to obtain the required height and
angle.
Front head restraints
Height adjustment

►  Upward: pull the head restraint up to the
desired position; the head restraint can be felt to
click into position.
►  Downward: press lug A to lower the head
restraint.
The adjustment is correct when the upper
edge of the head restraint is level with the
top of the head.
Removing a head restraint
►  Tilt the backrest to the rear to make it easier
to remove the head restraint.
►  Pull the head restraint fully up.
►  Press the lug A to release the head restraint
and remove it completely.
►  Stow the head restraint securely.
Refitting a head restraint
► Insert the head restraint rods into the guides
in the corresponding seat backrest.
►  Push the head restraint down as far as it will
go.
►  Press the lug A to release the head restraint
and push it down.
►  Adjust the height of the head restraint.
Never drive with the head restraints
removed; they should be in place and
adjusted for the occupant of the seat.
Additional adjustments
Electric lumbar adjustment

►  Press the + or - control to obtain the desired
lumbar support.
Massage function
(Driver’s seat only)

This function provides lumbar massage; it only
operates when the engine is running as well as in
STOP mode of the Stop & Start system.

51Ease of use and comfort03
State of the
indicator lampMeaning
Off Engine switched off.
No compatible devices
detected.
Charging finished.
Fixed green Compatible device detected.
Charging.
Flashing orange Foreign object detected in the charging zone.
Device not well centred in
the charging zone.
Fixed orange Fault with the device's battery meter.
Device battery
temperature too high.
Charger malfunction.


If the indicator lamp is lit orange:
– remo ve the device, then place it back in the
centre of the charging zone.
or
–

remo
ve the device and try again in a quarter of
an hour.
If the problem persists, have the system checked
by a dealer or a qualified workshop.
Mats
Fitting

When fitting the mat for the first time, on the
driver's side use only the fasteners supplied in the
enclosed sachet.
The other mats are simply laid over the carpet.
Removing/refitting
►  To remove it on the driver's side, move the seat
backwards and unclip the fasteners.
►  To refit it, position the mat and secure it by
pressing.
►  Check that the mat is secured correctly.
To avoid any risk of jamming the pedals:
–
O nly use mats which are suitable for
the fasteners already present in the vehicle;
these fasteners must be used.
–

Ne
ver fit one mat on top of another.
The use of mats not approved by the
Manufacturer may interfere with access to the
pedals and hinder the operation of the cruise
control/speed limiter.
The approved mats have two fasteners located
underneath the seat.
Courtesy lamps

1. Front courtesy lamp
2.Front map reading lamps
Front courtesy lamps
In this position, the courtesy lamp comes
on gradually:
–

on unlocking the v
ehicle,
–

on remo
ving the key from the ignition,
–

on opening a door
,
–

on activ
ating the remote control locking button,
in order to locate your vehicle.
It switches off gradually:
–

when the v
ehicle is locked,
–

when the ignition is s
witched on,
–

30 sec
onds after the last door is closed.
Permanently off.

52Ease of use and comfort03
Permanent lighting.
In "permanent lighting" mode, the lighting time
varies according to the circumstances:
–

when the ignition is o
ff, approximately ten
minutes,
–

in energy ec
onomy mode, approximately thirty
seconds,
–

with the engine running, unlimit
ed.
Map reading lamps
► With the ignition on, operate the
corresponding switch.
Take care not to place anything in contact
with the courtesy lamps.
Touch-sensitive courtesy
lamps
1. Front touch-sensitive courtesy lamp
2. Front touch-sensitive reading lamps
3.Rear touch-sensitive reading lamps
Front touch-sensitive courtesy
lamp
It comes on gradually:
–
when the v ehicle is unlocked.
–

when the ignition is s
witched off.
–

when a door is opened.
–


when the remo
te control locking button is
activated, in order to locate the vehicle.
It switches off:
–

when the v
ehicle is locked.
–

when the ignition is s
witched on.
–

30 sec
onds after the last door is closed.
The front and rear touch-sensitive reading lamps
come on and go off at the same time as the
courtesy lamp.
A long press on the courtesy lamp completely
deactivates it from coming on (confirmed by the
"OFF" symbol).
Touch-sensitive reading lamps
►  With the ignition on, press the corresponding
reading lamp.
Boot fittings

1. Load space cover
2. Boot lamp
3. Stowing rings
4. Boot mat
5. Tool kit (depending on equipment)
6. Storage well
The stowing rings are designed to secure
luggage using different types of retaining
nets. They are used with the ISOFIX mounting
rings located behind the rear seats.
The retaining nets are available as an option or
as an accessory.
For more information, contact a dealer.
Load space cover

To remove the load space cover:
►  unhook the two cords,
►  gently lift the shelf, then remove it.
When sharp deceleration occurs, objects
placed on the load space cover can turn
into projectiles.
Storage well

►  Fully raise the boot carpet to access the
storage well.

69Safety05
Seat belt not fastened/
unfastened alerts




1. Front left seat belt warning lamp
2. Front right seat belt warning lamp
3. Rear left seat belt warning lamp
4. Rear centre seat belt warning lamp
5. Rear right seat belt warning lamp
If the corresponding seat belt is not fastened
or is unfastened, when the ignition is switched
on, the seat belts warning lamp comes on in the
instrument panel and the corresponding warning
lamp (1 to 5) comes on in red in the seat belt and
front passenger airbag warning lamps display.
If a rear seat belt is not fastened, the
corresponding warning lamp (3 to 5)
comes on for around 30 seconds.
From about 12 mph (20 km/h) and for 2 minutes,
each warning lamp corresponding to an occupied
seat whose seat belt is unfastened flashes,
accompanied by an audible signal. After these 2
minutes, the corresponding seat warning lamp
remains on until the driver or the front/rear
passenger fasten their seat belt.
Front seat belt warning lamp(s)
On switching on the ignition, the warning lamp
comes on in the instrument panel and the
corresponding warning lamp(s) come(s) on in
red in the seat belt and front passenger airbag
warning lamp display if the driver's seat belt and/
or the passenger(s) seat belt is/are not fastened
or is/are unfastened.
Rear seat belt warning lamp(s)
The corresponding warning lamp comes on in
red in the seat belt and front passenger airbag
warning lamp display screen if one or more rear
passengers unfasten their seat belts.
Advice
The driver must ensure that passengers
use the seat belts correctly and that they
are all fastened before setting off.
Wherever seated in the vehicle, you must
always fasten the seat belt, even for short
journeys.
Do not interchange the seat belt buckles, as
they will not fulfil their role fully.
Before and after use, ensure that the seat belt
is reeled in correctly.
After folding or moving a seat or rear bench
seat, ensure that the seat belt is positioned
and reeled in correctly.
Installation
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.
In order to be effective, a seat belt:
–

must be tigh
tened as close to the body as
possible;
–

must be pulled in fron
t of you with a smooth
movement, ensuring that it is not twisted;
–

must only be used t
o secure one person;
–

must no
t show signs of tearing or fraying;
–

must no
t be changed or modified, in order to
avoid affecting its performance.
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 child.
Never carry a child on your lap.
For more information on Child seats, refer to
the corresponding section.
Maintenance
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 a dealer is
able to provide.

72Safety05
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 fix or attach anything to the steering
wheel or dashboard, as this could cause
injuries when the airbags are deployed.
Lateral airbags
Use only approved covers on the seats,
compatible with the deployment of the lateral
airbags. For information on the range of seat
covers suitable for your vehicle, contact a
dealer.
Do not fix or attach anything to the seat
backrests (clothing, etc.), as this could cause
injuries to the chest or arm when the lateral
airbag is deployed.
Do not sit with the upper part of the body any
nearer to the door than necessary.
At the rear, any objects placed on the outer
seats or the folded backrest of the 1/3 bench
seat could become projectiles when the lateral
airbags are deployed.
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 dealer or a
qualified workshop.
Curtain airbags
Do not fix or attach anything to the roof,
as this could cause head injuries when the
curtain airbag is deployed.
Do not remove the grab handles installed on
the roof, as they play a part in securing the
curtain airbags.
Child seats
The legislation on carrying children is
specific to each country. Refer to the
legislation in force in your country.
For maximum safety, please observe the following
recommendations:
–

In ac
cordance with European regulations, all
children under the age of 12 or less than one and
a half metres tall must travel in approved child
seats suited to their weight, on seats fitted with a
seat belt or ISOFIX mountings.
–

Statistically
, the safest seats in your vehicle for
carrying children are the rear seats.
–

A child w
eighing less than 9 kg must travel in
the "rearward facing" position both in the front
and in the rear.
It is recommended that children travel on
the rear seats of the vehicle:
–

"rearward facing" up to the age of 3,
–

"forward facing" over the age of 3.
Make sure that the seat belt is correctly
positioned and tightened.
For child seats with a support leg, ensure that
the support leg is in firm and steady contact
with the floor.
An incorrectly installed child seat
compromises the child's safety in the
event of an accident.
Ensure that there is no seat belt or seat belt
buckle under the child seat, as this could
destabilise it.
Remember to fasten the seat belts or the
harness of child seats, keeping the slack
relative to the child's body to a minimum, even
for short journeys.
When installing a child seat using the seat
belt, ensure that the seat belt is tightened
correctly on the child seat and that it secures
the child seat firmly on the seat of the vehicle.
If the passenger seat is adjustable, move it
forwards if necessary.
Remove the head restraint before installing a
child seat with a backrest on a passenger seat.
Ensure that the head restraint is stored or
attached securely to prevent it from being
thrown around the vehicle in the event of sharp

74Safety05
The front passenger airbag must be
deactivated before installing a rearward
facing child seat. Otherwise, the child risks
being seriously injured or killed if the airbag is
deployed.


Warning label - Front passenger airbag

You must comply with the following instruction,
reminded by the warning label on both sides of
the passenger sun visor:
NEVER use a rearward facing child restraint on
a seat protected by an ACTIVE AIRBAG in front
of it, DEATH or SERIOUS INJURY to the CHILD
can occur.
Deactivating the front
passenger airbag
For your child’s safety, the front
passenger airbag MUST be deactivated
when a "rearward facing" child seat is
installed on the front passenger seat.
Otherwise, the child would be exposed to the
risk of death or serious injury in the event of
airbag deployment.
Vehicles not equipped with a
deactivation/reactivation control
Installing a "rearward facing" child seat on the
front passenger seat is strictly prohibited - risk
of death or serious injury in the event of airbag
deployment!
Deactivating/Reactivating the front
passenger airbag
For vehicles on which it is fitted, the control is
located by the glove box.


With the ignition off:
►  To deactivate the airbag, turn the key in the
switch to the "OFF" position.
►  To reactivate it, turn the key to the "ON"
position.
When the ignition is switched on:
This warning lamp comes on and remains
lit to signal the deactivation.
Or
This warning lamp comes on for about 1
minute to signal the activation.
Recommended child seats
Range of recommended child seats secured using
a three-point seat belt.