2018 CITROEN DS4 start stop button

76
Adjusting the air distribution
F Press one or more buttons to direct the air flow towards:
-

t
he windscreen and side
windows (demisting or
def r o st ing),
-

t
he outer and centre air vents,
-

t
he footwells.
You can combine the three directions to obtain
the desired air distribution.
Adjusting the air flow
F Turn this control to the left to decrease the air flow or to the
right to increase the air flow.
The air flow indicator lamps between the two
fans come on progressively according to the
value requested.
Air intake/Air recirculation
F Press this button to recirculate the interior air. The button's
indicator lamp comes on.
Air recirculation enables the passenger compartment
to be isolated from exterior odours and smoke.
F As soon as possible, press this button again to permit
the intake of outside air and
prevent the formation of
condensation. The button's
indicator lamp goes off.
Avoid prolonged operation in interior air
recirculation mode (risk of misting and
deterioration of air quality).
"REST" function: ventilation with the
engine off
Even with the engine is off, you can operate the
ventilation for a few minutes.
For example, if you leave the vehicle,
ventilation can be provided to the passengers
who stay inside without having to start the
engine.
This function is available after switching on the
ignition, as well as after stopping the engine.
The availability period of the function depends
on the state of charge of the battery.
You can activate the "REST" function as long
as the air conditioning control displays are on. When the ignition is switched on
-

T
he control displays come on: the function
is available.
-
P
ressing the REST
button
activates the ventilation for
a few minutes. Activation of
the function is confirmed by
two dashes appearing in the
control displays and four air
flow level indicator lamps.
On stopping the engine
-
W
hile the control displays are still on: the
function is available.
- P ressing the REST
button
activates the ventilation for
a few minutes. Activation of
the function is confirmed by
two dashes appearing in the
control displays and four air
flow level indicator lamps.
Locking the vehicle has no effect on this
function.
-

T
he displays go off at the end of this period.
Pressing this button again before the end of
the period stops the ventilation completely: the
control displays go off and the function is no
longer available.
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Ease of use and comfort

77
This function does not operate the air
conditioning, only the air blower.
When the "REST" function is activated,
you cannot modify the temperature, air
flow and distribution settings: these are
controlled automatically according to the
exterior temperature.
This function is not available when the
Stop & Start is in STOP mode.
Deactivating the system
F Turn the air flow control to the left until all indicator lamps are
of f.
This action switches off the air conditioning and
the ventilation.
Thermal comfort is no longer controlled.
A

slight flow of air can still be felt, resulting from
the for ward movement of the vehicle. F

M
odify one of the settings
(temperature, air flow or air
distribution) or press the
AUTO button to reactivate the
system with the values set
before it was switched off.
Avoid prolonged operation in interior
air recirculation mode or driving for
long periods with the system off (risk of
condensation and deterioration of air
quality).
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Ease of use and comfort

79
Front demist – defrost
With manual air conditioning
F Put the temperature, air flow and distribution controls to the
dedicated marked position.
F

P

ut the air intake control to the "Exterior air
intake" position (control indicator lamp off).
F

S
witch on the air conditioning
by pressing the " A/C" button;
the indicator lamp in the button
comes on.
With automatic dual-zone air
conditioning
Automatic visibility programme
F Select this programme to demist or defrost the windscreen and
side windows as quickly as
possible.
With Stop & Start, when demisting/
defrosting has been activated, STOP
mode is not available.
The system automatically manages the air
conditioning, air flow and air intake, and provides
optimum distribution towards the windscreen and
side windows.
F
T
o stop the programme, press either the
visibility button again or " AUTO"; the
indicator lamp in the button goes off and the
indicator lamp in the " AUTO" button comes on.
The system starts again with the values in
use before it was overridden by the visibility
programme.
F It is possible to stop the demisting/defrosting operation
before it is switched off
automatically by pressing the
button again. The indicator lamp
in the button goes out.
Rear screen demist –
defrost
Switching on
Demisting – defrosting of the rear screen can
only function when the engine is running.
Switching off
Demisting/defrosting switches off automatically
to prevent an excessive consumption of current.
F Press this button to demist /defrost the rear screen and
(depending on version) the door
mirrors. The indicator lamp in
the button comes on.
These markings on the control panel
indicate the control positions for
rapid demisting or defrosting of the
windscreen and side windows.
With Stop & Start, when the demisting/
defrosting, air conditioning and air flow
functions are activated, STOP mode is not
available. The control button is located on
the air conditioning system control
panel.
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Ease of use and comfort

85
High version
1.Front armrest
2. 12 V accessory socket
3. Storage box
4. Cup holder/Bottle holder
5. Storage compartment or START/STOP
button (depending on version)
Front armrest
Comfort and storage system for the driver and
front passenger.
The height and length of the armrest cover can
be adjusted.
Adjusting the height
F Raise the cover to the required position
(low, intermediate or high).
F

I
f you raise the cover slightly beyond the
high position, guide it when lowering it to the
low position.
Longitudinal adjustment
F Slide the cover fully for wards or rear wards.
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Ease of use and comfort

109
If these warning lamps come on,
accompanied by an audible signal
and a message, this indicates a
fault with the electronic brake force
distribution (EBFD).
When changing wheels (tyres and rims),
make sure that these are approved for
your vehicle.
Normal operation of the ABS system may
be indicated by slight vibration felt at the
brake pedal.
In case of emergency braking, press
ver y hard without releasing the
pressure at all.
After an impact, have these systems
checked in the dealer network or by a
qualified workshop.Anti-slip regulation (ASR)/
Dynamic stability control
(DSC)
Operation
These systems are activated automatically
every time the vehicle is started.
They come into operation in the event of a
problem with grip or trajectory.
Deactivation
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on soft
ground...), it may be advisable to deactivate
these systems, so that the wheels can turn
freely and regain grip. The indicator lamp in the button comes on to
indicate that these systems are deactivated.
The ASR and DSC systems will no longer have
an effect on engine operation or the brakes in
the event of an involuntary change of trajectory.
Reactivation
These systems are reactivated automatically
each time the ignition is switched back on or
above around 30 mph (50 km/h).
F

P
ress this button again to reactivate them
manually.
Operating fault
The illumination of this warning
lamp, accompanied by an audible
signal and a message, indicates that
there is a fault with these systems.
Contact the dealer network or a qualified
You must stop as soon as it is safe to do so.
In both cases, have the system checked in the
dealer network or by a qualified workshop as
soon as possible.
This is indicated by flashing of this
warning lamp in the instrument panel.
workshop to have the systems checked.
F

P

ress this button.
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Safety

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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Driving

137
If one of the starting conditions is not
met, a reminder message appears in the
instrument panel screen. In some cases, it
is necessary to operate the steering wheel
while pressing the "START/STOP" button
to help unlock the steering column.
The presence of the Keyless Entry and
Starting electronic key in the recognition
zone is essential.
As a safety measure, do not leave this
zone with the vehicle running.
If the electronic key is not detected in the
recognition zone, a message is displayed.
Move the electronic key into the zone so
that the engine can be started.
Switching off the engine
F Stop the vehicle.
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 " S TA R T/
STOP " button.
The engine stops and the steering
column locks.
If the vehicle is not immobilised, the
engine will not stop.
Never leave your vehicle with the
electronic key still inside.
Switching off the engine leads to a loss of
braking assistance.
Back-up star ting
When the electronic key is in the recognition
zone and after pressing the "START/STOP"
button, if the engine does not start:
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

O
pen the front armrest. F

R
aise the mat by its tongue and remove it.
F
P
lace the electronic key on the back-up
reader.
F
P
ress the brake pedal on vehicles with an
automatic gearbox, or fully depress the
clutch pedal with a manual gearbox.
F P ress the "START/STOP"
button.
The engine starts.
Back-up switch off
In the event of an emergency only,
the engine can be switched off
without conditions. To do this, press
and hold the " START/STOP " button
for about three seconds.
In this case the steering column locks as soon
as the vehicle stops.
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Driving

138
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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Driving