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DS3_en_Chap06_securite_ed01-2015
Page 146 of 458
Direction
indicators
F Left: lower the lighting stalk beyond the p
oint of resistance.
F
R
ight: raise the lighting stalk beyond the
p
oint of resistance.
Three flashes of the direction
indicators
F Press briefly upwards or downwards, without going beyond the point of
r
esistance; the direction indicators will
f
lash 3 times.
Hazard warning lam ps
A visual warning by means of the direction i
ndicators to alert other road users to a vehicle
breakdown,
towing or accident.
F
P
ress this button, the direction indicators
flash.
They
can operate with the ignition off.
Automatic operation of
hazard warning lamps
When braking in an emergency, depending on the deceleration, the hazard warning lamps
c
ome on automatically.
They
switch off automatically the first time you
a
ccelerate.
F
Y
ou can also switch them off by pressing
t
he button.
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Horn
Audible warning to alert other road users to an imminent d anger.
F
P
ress one of the spokes of the steering
w
heel.
Emergency o r
a
ssistance call
This system allows you to make an emergency o
r assistance call to the emergency services
o
r to the dedicated service (operated by
C
ITROËN Assistance).
For
more information on the use of this
f
unction, refer to the "Audio and telematics"
s
ection.
Safety
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Under-inflation detection
System which automatically checks the pressures of the tyres while driving.
T he under-inflation detection system
d
oes not replace the need for vigilance
o
n the part of the driver.
This
system does not avoid the need to
c
heck the tyre pressures (including the
s
pare wheel) every month as well as
b
efore a long journey.
Driving
with under-inflated tyres
i
mpairs road holding, extends braking
d
istances and causes premature
t
yre wear, particularly under arduous
condition
(high loading, high speed,
lon
g
jo
urney).The inflation pressures defined for
your vehicle can be found on the tyre
pressure
label.
See
the "Identification markings"
s
ection.
Tyre
pressures should be checked
w
hen the tyres are "cold" (vehicle
s
topped for 1 hour or after a journey of
l
ess than 6 miles (10 km) at moderate
s
peeds).
Other wise
(when hot), add 0.3 bar to
t
he pressures shown on the label.
Driving
with under-inflated tyres
i
ncreases fuel consumption.
The
system monitors the pressures in the four
t
yres, once the vehicle is moving.
It
compares the information given by the four
w
heel speed sensors with reference values,
which must be reinitialised ever y time the
tyre pressures are adjusted or a wheel
changed .
The
system triggers an alert as soon as it
d
etects a drop in the inflation pressure of one
or
more tyres.
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The alert is maintained until the system is r einitialised.
The loss of pressure detected does not
always
cause
visible
bulging
of
the
tyre.
D
o
not
satisfy
yourself
with
just
a
visual
c
heck. Before
reinitialising the system, ensure
t
hat the pressures of the four tyres are
correct for the use of the vehicle, as
given
on the tyre pressure label.
The
under-inflation detection system
d
oes not give a warning if a pressure is
i
ncorrect at the time of reinitialisation.
Under-inflation alert
This is given by fixed illumination of this warning lamp, accompanied by
a
n audible signal and the display of a
m
essage.
F
R
educe speed immediately, avoid
e
xcessive steering movements and sudden
b
raking
F
S
top
the vehicle as soon as it is safe to do so.F
I f you have a compressor (such as the one
i
n the temporary puncture repair kit), check
t
he pressures of the four tyres when cold.
I
f it is not possible to carry out this check
s
traight away, drive carefully at reduced
s
peed.
or
F
I
n the event of a puncture, use the
temporary
puncture repair kit or the spare
w
heel (depending on equipment).
Reinitialisation
It is necessary to reinitialise the system every time one or more tyre pressure is adjusted, and
a
fter changing one or more wheels.
A
label on the middle pillar, left hand side, gives
a
reminder of this.
Safety
Page 150 of 458

Reinitialisation of the system is done in the vehicle configuration menu, with the vehicle stationary and the ignition on.
Monochrome screen A
F Press the MEn U button for access to the
main menu.
F
P
ress the " 5" or " 6" button to select
the Veh conf ig
menu, then confirm by
p
ressing the OK
button.
F
P
ress the " 5" or " 6" button to select the
" Reinit inflat ",
menu, then confirm by
p
ressing the OK
button.
A
message is displayed to confirm the
in
struction.
F
C
onfirm by pressing the OK
button.
Monochrome screen C
F Press the MEnU button for access to the
main menu.
F
P
ress the " 5" or " 6" button to select the
" Personalisation-configuration "
menu,
t
hen confirm by pressing the OK
button.
F
P
ress the " 5" or " 6" button to select the
"
def
ine vehicle parameters "
menu, then
c
onfirm by pressing the OK
button.F
P ress the "
5" or " 6" button to select
the " Tyre pressures "
menu, then the
"R
einitialisation"
menu, then confirming
b
y pressing the OK
button.
A
message confirms the reinitialisation.
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Touch screen tablet
F Press the MEnU button.
F Sel ect the "dr iving"
menu.
F
I
n the secondary page, select "Under-
inflation initialisation ".
A
message is displayed to confirm the
r
einitialisation
i
nstruction.
F
Sel
ect "Ye s" or "
n
o",
then confirm.
A
message confirms the reinitialisation.The
new pressure settings registered are
c
onsidered to be reference values by the
system.Snow chains
The system does not have to be r einitialised after fitting or removing
sn
ow
c
hains. Before
doing anything to the system,
t
he pressures of the four tyres must be c
hecked and the system reinitialised.
The under-inflation alert is only
dependable
if the system has been
r
einitialised with all four tyres inflated to
the correct pressures.
Operating fault
The flashing and then fixed illumination of the u
nder-inflation w arning lam p a ccompanied b
y illumination of the Service warning lamp
i
ndicates a fault with the system.
In
this case, under-inflation monitoring of the
t
yres is no longer assured.
Have
the system checked by a CITROËN
d
ealer or a qualified workshop.
Safety
Page 152 of 458

Braking assistance systems
Group of supplementary systems which help you to obtain optimum braking in complete
s
afety in emergency situations:
-
a
nti-lock braking system (ABS),
-
e
lectronic brake force distribution (EBFD),
-
e
mergency braking assistance (EBA).Anti-lock braking system
and electronic brake force
distribution
Linked systems which improve the stability and manoeuvrability of your vehicle when braking,
i
n particular on poor or slippery sur faces.
Activation
The anti-lock braking system comes into operation automatically when there is a risk of
w
heel lock.
Normal
operation of the ABS may make itself
f
elt by slight vibration of the brake pedal.
When
braking in an emergency, press
v
ery firmly without releasing the
p
ressure.
Operating fault
If this warning lamp comes on, together with the STOP and ABS
warning
lamps, accompanied by an
a
udible
signal and a message in the screen, it
i
ndicates
a malfunction of the electronic brake
f
orce distribution which could result in loss of
control
of
the vehicle when braking.
You must stop as soon as it is safe to do so.
When
replacing wheels (tyres and
r
ims), ensure that they conform to the
ma
nufacturer's
r
ecommendations.
If
this warning lamp comes on,
a
ccompanied by an audible signal
a
nd a message in the screen, it
i
ndicates
a malfunction of the anti-lock braking
s
ystem
which could result in loss of control of
t
he
vehicle when braking.
In either case, contact a CITROËN dealer or a
qualified
w
orkshop.