2018 CITROEN DS7 CROSSBACK Sensor malfunction

14
Dashboard instruments01
Engine self-diagnostic systemFlashing.
The engine management system has a
fault.
There is a risk that the catalytic converter will be
destroyed.
You must carry out (2).
Fixed.
The emissions control system has a fault.
The warning lamp should go off when the engine
is started.
Carry out (3) without delay.
Dynamic stability control (DSC)/Anti-slip
regulation (ASR)
Fixed.
The system is deactivated.
The DSC/ASR system is reactivated automatically
when the vehicle is started, and at speeds above
approximately 31 mph (50 km/h).
At speeds below 31 mph (50 km/h), it can be
reactivated manually.
Flashing.
DSC/ASR system regulation is activated in
the event of a loss of grip or trajectory.
Fixed.
The DSC/ASR system has a fault.
Carry out (3).
Emergency brake malfunction (with electric
parking brake)
Fixed, accompanied by the
message "Parking brake fault".
Emergency braking does not deliver optimal
performance.
If automatic release is not available, use manual
release or carry out (3).
Hill start assistFixed, accompanied by the
message "Anti roll-back system
fault".
The system has a fault.
Carry out (3).
Under-inflationFixed.
The pressure in one or more tyres is too
low.
Check the pressure of the tyres as soon as
possible.
Reinitialise the detection system after adjusting
the pressure.
Under-inflation warning lamp
flashing then fixed and Service
warning lamp fixed.
The tyre pressure monitoring system is faulty.
Under-inflation detection is no longer monitored.
Check the tyre pressures as soon as possible and
carry out (3).
Parking sensorsFixed, accompanied by an onscreen
message and an audible signal.
The system is deactivated.
Fixed, associated with the Service
warning lamp, accompanied by the
display of a message and an audible signal.
The system has a fault.
Carry out (3).
Engine preheating (Diesel)Temporarily on
(up to approximately 30 seconds in severe
weather conditions).
When switching on the ignition, if the weather
conditions and the engine temperature make it
necessary.
Wait until the warning lamp goes off before
starting.
When the warning lamp goes off, starting will
occur immediately if you press and hold the brake
pedal.
If the engine does not start, make the engine
starting request again, while keeping your foot on
the pedal.
AirbagsFixed, associated with the Service
warning lamp and accompanied by
the display of a message.
One of the airbags or seat belt pyrotechnic
pretensioners is faulty.
Carry out (3).

65
Lighting and visibility04
Headlamp beam height
adjustment
Manual adjustment of LED
technology headlamps




To avoid dazzling other road users, the height
of these headlamp beams must be adjusted
according to the load in the vehicle.
0 (Initial setting) Driver only or driver + front passenger
1 5 people
2 5 people + load in the boot
3 Driver only + load in the boot
4 5 6 Not used
Automatic DS PIXEL LED VISION
3.0 headlamp adjustment
This system automatically adjusts the height of
the headlamp beams according to the load in the
vehicle.
In the event of a malfunction, this warning
lamp lights up on the instrument panel,
accompanied by the display of a message and an
audible signal.
The system places the headlamp beams in the
lowest position.
Have it checked by a dealer or a qualified
workshop.
Do not touch the DS PIXEL LED VISION 3.0
headlamps - risk of electrocution!
Automatic illumination of
lamps
With the lighting control stalk in the “AUTO”
position and if a low level of exterior brightness
is detected by the rain/sunshine sensor, the
sidelamps and dipped beam headlamps are
switched on automatically, without any action on
the part of the driver. They may also come on if
rain is detected, at the same time as automatic
operation of the windscreen wipers.
As soon as the brightness returns to a sufficient
level or after the windscreen wipers are switched
off, the lamps are switched off automatically.
Malfunction
In the event of a malfunction of the rain/
sunshine sensor, the vehicle’s lamps come
on and this warning lamp is displayed on the
instrument panel, accompanied by an audible
signal and/or the display of a message.
Have it checked by a dealer or a qualified
workshop.
Do not cover the rain/sunshine sensor
located at the top centre of the
windscreen behind the interior rear view
mirror; the associated functions would no
longer be controlled.
In fog or snow, the rain/sunshine sensor
may detect sufficient light. For this
reason, the lighting will not come on
automatically.
The inner surface of the windscreen may
become misted up and affect the proper
operation of the rain/sunshine sensor.
In humid and cold weather, demist the
windscreen regularly.
Guide-me-home and
welcome lighting
Guide-me-home lighting
Automatic
With the ring of the lighting control stalk in the
"AUTO” position and when the light is poor, the

70
Lighting and visibility04
Followed vehicle

When approaching a vehicle from behind, only
those lamp segments directed at the followed
vehicle go off, thereby creating a "tunnel" so as
not to dazzle its driver.
Oncoming vehicle

When an oncoming vehicle approaches, only
those lamp segments directed at this vehicle
go off, thereby creating a "tunnel" during the
duration of the approach.
Entering an illuminated area
At the entrance to an illuminated area (e.g. a
town), the lamp segments are gradually switched
off from the outside to the inside of the vehicle to
switch to the dipped beams.
Exiting an illuminated area
The lamp segments gradually light up from the
inside to the outside of the vehicle to restore the
main beams.
Pause
If the situation requires a change of headlamp
beam, the driver can take over at any time.
► Switch the dipped/main beam headlamps
manually to pause the function.
The lighting system changes to "Automatic
illumination of lamps" mode.
►  To reactivate the function, manually switch
the dipped/main beam headlamps again.
Malfunction
If a malfunction occurs with the adaptive
headlamp lighting or the camera, this
warning lamp is displayed on the instrument
panel, accompanied by an audible signal and a
message.
Have it checked by a dealer or a qualified
workshop.
Do not cover the rain/sunshine sensor
located at the top centre of the
windscreen behind the interior rear view
mirror; the associated functions would no
longer be controlled.
DS NIGHT VISION

This system identifies and signals the presence
of pedestrians and animals in the driver's field
of vision, in low exterior light conditions, using
an infrared camera located at the front of the
vehicle.
Select the "Night vision" display mode if you
want the infrared camera image to be displayed
constantly on the instrument panel. When the
conditions are met, an alert is triggered if there is
a risk of collision.
The permanent display disappears upon
switching off the ignition or if the conditions are
not met.
This system is a driving aid system that
cannot, under any circumstances, replace
the driver's assessment of night-time visibility
and traffic conditions.
In some cases, the differences in temperature
are insufficient and the system may not detect

77
Safety05
Horn

►  Press the central part of the steering wheel.
Pedestrian horn
(Rechargeable hybrid)
This system alerts pedestrians that the vehicle is
approaching, when driving in Electric mode (100%
electric driving).
The pedestrian horn operates once the vehicle is
moving and at speeds of up to 19 mph (30 km/h),
in forward or reverse gear.
This function cannot be deactivated.
Malfunction
In the event of a malfunction, this warning
lamp lights up on the instrument panel.
* In accordance with the general conditions of use of the service, available from dealers and subject to technological and technical limitations.
**
Depending on the geographic c overage provided by the "eCall (SOS)" and "DS ASSISTANCE" systems.
The list of countries covered and the telematic services provided is available from dealers or on the website for your country. Have it checked by a dealer or a qualified
workshop.
Emergency or assistance
call




1. eCall (SOS)
2. DS ASSISTANCE
eCall (SOS)
Your vehicle may be fitted with the eCall (SOS)
system either as standard or as an option.
The eCall (SOS) system provides direct contact to
the emergency services and is fully built into the
vehicle. This contact is made either automatically
via the sensors built into the vehicle, or by
pressing button 1.
According to the country of sale, the eCall (SOS)
system corresponds to the systems PE112,
ERAGLONASS, 999, etc.
The eCall (SOS) system is activated by default.
►  To make an emergency call manually, press
button 1 for more than 2 seconds.
The lit indicator lamp and a voice message
confirm that the call has been made to the
emergency services*.
The eCall (SOS) system immediately locates
your vehicle and puts you in contact with the
appropriate emergency services**.
►  Pressing again immediately cancels the
request.
The indicator lamp flashes while the vehicle
data is being sent, and then remains lit when
communication is established.
In the event that a serious accident is
detected by the sensors built into the
vehicle, such as the airbag control unit, an
emergency call is made automatically.
The eCall (SOS) system is a public service
of general interest and is free-of-charge.

85
Safety05
Curtain airbags
This system helps provide 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.
Each curtain airbag is built into the pillars and the
upper passenger compartment area.
Deployment
It deploys simultaneously with the corresponding
lateral airbag in the event of a serious side impact
applied to all or part of the side impact zone B.
The curtain airbag inflates between the front
and rear occupants of the vehicle and the
corresponding windows.
Malfunction
In the event of a malfunction, these
warning lamps light up on the
instrument panel. Contact a dealer or a qualified
workshop to have the system checked.
The airbags may not be deployed in the event of a
serious impact.
In the event of a minor impact or bump at
the side of the vehicle or if the vehicle
rolls over, the airbags may not be deployed.
In the event of a rear or front collision, none of
the lateral airbags are deployed.
Advice
For the airbags to be fully effective,
observe the safety recommendations
below.
Adopt a normal and upright sitting position.
Fasten your seat belt and position it correctly.
Do not place anything between the occupants
and the airbags (e.g. child, animal, object), do
not fix or attach anything near or in the path of
the airbags, as this could cause injuries when
they are deployed.
Never modify the original definition of the
vehicle, particularly in the area directly around
the airbags.
Even if all of the precautions mentioned are
observed, a risk of injury or of minor burns to
the head, chest or arms cannot be ruled out
when an airbag is deployed. The bag inflates
almost instantly (within a few milliseconds)
then deflates within the same time,
discharging the hot gas via openings provided
for this purpose.
After an accident or if the vehicle has been
stolen, have the airbag systems checked.
All work must be carried out only by a dealer or
a qualified workshop.
Front airbags
Do not drive holding the steering wheel by
its spokes or resting your hands on the centre
part of the wheel.
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 seat covers compatible
with the deployment of these 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 (e.g. clothing) as this could cause
injuries to the chest or arm when the airbag is
deployed.
Do not sit with the upper part of the body any
nearer to the door than necessary.
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!
All work must be carried out only by a dealer or
a qualified workshop.

97Driving06
► Do not stop and do not switch off the engine.
On leaving the flooded road, as soon as safety
conditions allow, make several light brake
applications to dry the brake discs and pads.
If in doubt about the state of your vehicle, contact
a dealer or a qualified workshop.
Towing
Driving with a trailer places greater
demands on the towing vehicle and
particular care must be taken.
Do not exceed the maximum towable
weights.
At altitude: reduce the maximum load by 10%
per 1,000 metres of altitude; the lower air
density at high altitudes decreases engine
performance.
New vehicle: do not tow a trailer until the
vehicle has driven at least 620 miles
(1,000 kilometres).
If the outside temperature is high, let the
engine idle for 1 to 2 minutes after the
vehicle comes to a stop, to help it to cool.
Before setting off
Nose weight
►  Distribute the load in the trailer so that the
heaviest items are as close as possible to the axle
and the nose weight (at the point where it joins
your vehicle) approaches the maximum permitted
without exceeding it.
Tyres
►  Check the tyre pressures of the towing vehicle
and of the trailer, observing the recommended
pressures.
Lighting
►  Check the electrical signalling on the trailer
and the headlamp beam height of your vehicle.
If a genuine towing device is used, the
rear parking sensors will be deactivated
automatically to avoid the audible signal.
When driving
Cooling
Towing a trailer uphill causes the coolant
temperature to increase. The maximum towable
load depends on the gradient and the exterior
temperature. The fan’s cooling capacity does not
increase with engine speed.
►  Reduce speed and lower the engine speed to
limit the amount of heating produced.
►  Pay constant attention to the coolant
temperature.
If this warning lamp and the STOP
warning lamp come on, stop the
vehicle and switch off the engine as soon as
possible.
Brakes
Using the engine brake is recommended to limit
the overheating of the brakes. Braking distances
are increased when towing a trailer.
Side wind
Bear in mind that the vehicle will be more
susceptible to wind when towing.
Anti-theft protection
Electronic immobiliser
The keys contain a code, which must be
recognised by the vehicle before starting is
possible.
If the system malfunctions, indicated by the
display of a message, the engine will not start.
Contact a dealer.
Starting/switching off the
engine
The electronic key must be present in the
passenger compartment.
If the electronic key is not detected, a message
is displayed.

106
Driving06
The system uses a computer and sensors, which
determine the optimal level of shock absorption
to be applied to each shock absorber.
The system is also associated with a camera,
located at the top of the windscreen, constantly
monitoring the road condition. Based on the
information transmitted by the camera, the
system anticipates possible road defects.
The operation of the system depends on the
driving mode selected (depending on equipment).
For more information on the Driving modes,
please refer to the corresponding section.
Malfunction
In the event of a malfunction, this warning
lamp lights up on the instrument panel.
Have it checked by a dealer or a qualified
workshop.
Driving modes
The driving modes available depend on the engine
and equipment of the vehicle.
Driving modes are selected using the following
control:




►  Press the control to display the modes on the
instrument panel.
►  Press the control again to change mode.
The selected mode is activated immediately.
With petrol / Diesel engines
Whenever the ignition is switched on, Normal
driving mode is selected by default.
Eco
To reduce fuel consumption by optimising the
operation of the heating and air conditioning and,
depending on version, accelerator, automatic
gearbox, gear shift indicator.
Free-wheeling in Eco mode: depending on version,
with the EAT8 gearbox, switching into "free-
wheeling" is encouraged to slow the vehicle down
without using engine braking. You can save fuel
by taking your foot gradually and fully off the
accelerator pedal in anticipation of slowing down.
Comfort
To achieve more comfortable driving on poor
road surfaces, over speed humps and sleeping
policemen or on long journeys. In this mode, DS
ACTIVE SCAN SUSPENSION utilises additional
information coming from the multifunction
camera (early detection of road type and road
surface condition).
Normal
To restore the default settings.
Sport
To obtain more dynamic driving with action on the
power steering, DS ACTIVE SCAN SUSPENSION,
accelerator and gear changes (with an automatic
gearbox), acoustic ambience of the engine and
the possibility of displaying the vehicle’s dynamic
settings on the instrument panel.
Manual
Permanent Manual mode with an automatic
gearbox.
This manual mode is accessed via the button M of
the push selector.
To change gears manually using the control
paddles on the steering wheel.
For more information on Automatic gearbox
(EAT8), refer to the corresponding section.

110
Driving06
– The outside temperature must be between 0°C
and 35°C.
Putting the engine into standby (STOP
mode)
The engine automatically enters standby mode
as soon as the driver indicates their intention to
stop:
–

With an automatic gearbo
x, at speeds below
12 mph (20 km/h) on BlueHDi versions, or below
2 mph (3 km/h) on PureTech 130, 180 and 225
versions, when you depress the brake pedal or
place the gear selector in mode N.
Time counter
A time counter adds up the time spent in standby
during the journey. It is reset to zero every time
the ignition is switched on.
Special cases:
The engine will not go into standby if the
conditions for operation are not met and in the
following cases:
–

St
eep slope (ascending or descending).
–

Needed t
o maintain a comfortable temperature
in the passenger compartment.
–

Demisting activ
e.
In these cases, this indicator lamp flashes
for a few seconds, then goes off.
After the engine has restarted, STOP
mode is not available until the vehicle has
reached a speed of 5 mph (8 km/h).
During parking manoeuvres, STOP mode is
not available for a few seconds after
coming out of reverse gear or turning the
steering wheel.
Restarting the engine (START mode)
The engine automatically restarts as soon as the
driver indicates the intention of moving off again:
–

With the select
or in mode D or M: with the
brake pedal released.
–

With the select
or in mode N and the brake
pedal released: with the selector at D or M.
–

With the select
or in mode P and the brake pedal
depressed: with the selector at R, N, D or M.
–

With re
verse gear engaged.
Special cases
The engine will restart automatically if the
conditions for operation are met again and in the
following cases:
–
V
ehicle speed exceeds 2.5 mph (4 km/h) with
PureTech 130, 180 and 225 versions, or 16 mph
(25 km/h) with BlueHDi versions.
In these cases, this indicator lamp flashes
for a few seconds, then goes off.
Malfunctions
In the event of a fault with the system, this
warning lamp flashes for a few moments
on the instrument panel, then remains on,
accompanied by the display of a message.
Have it checked by a dealer or a qualified
workshop.
The vehicle stalls in STOP mode
All of the instrument panel warning lamps come
on if there is a fault.
►  Switch off the ignition then start the engine
again with the "START/STOP" button.
12 V battery
The Stop & Start system requires a
12 V battery of specific technology and
specification.
All work must be carried out only by a dealer or
a qualified workshop.
Tyre under-inflation
detection
This system alerts the driver if one or more tyres
suffer a drop in pressure.
The alert is raised when the vehicle is moving, not
when stationary.
It compares the information given by the wheel
speed sensors with reference values, which must
be reinitialised every time the tyre pressures are
adjusted or a wheel changed.
It takes into account the last values stored
during the reinitialisation request. It is therefore
essential that the tyre pressure is correct during
the operation. This operation is the driver’s
responsibility.