
9
DS3_en_Chap00b_vue-ensemble_ed01-2015
Under-inflation detection
This system automatically checks the tyre pressures when driving and alerts you in the
e
vent of an under-inflation.
146
195
Temporary puncture repair kit
This kit is a complete system consisting of a c ompressor and a sealant cartridge, to allow
t
he temporary repair of a tyre.
Exterior
124
Rear parking sensors
This system provides a warning when reversing by detecting obstacles located behind the
v
ehicle. 126
Reversing camera
This system is activated automatically when r
everse gear is engaged, providing an image in
t
he screen.
Over view

DS3_en_Chap01_controle-de-marche_ed01-2015
Warning/indicator lampis on Cause Action / Observations
Under-inflation fixed,
accompanied by
a
n audible signal and a
m
essage.The
pressure in one or more tyres is
t
oo low.Check
the tyre pressures as soon as possible.
This
check should preferably be carried out when the
t
yres are cold.
You
must reinitialise the system after the adjustment of
o
ne or more tyre pressures and after changing one or
m
ore wheels.
For
more information, refer to the "Under-inflation
d
etection"
s
ection.
+ flashing
then fixed,
a
ccompanied by the
S
ervice warning lamp.The
system has fault: the tyre
p
ressures are no longer monitored.Check
the tyre pressures as soon as possible.
Have
the system checked by a CITROËN dealer or a
q
ualified
w
orkshop.

51
DS3_en_Chap01_controle-de-marche_ed01-2015
"driving" menu
ButtonCorresponding function Comments
di
agnostic Recap
of current alerts.
Under-inflation initialisation Reinitialisation
of tyre pressures.
Refer
to the "Safety" section.
Vehicle settings Access
to other functions with settings that can be adjusted. The functions are grouped
t
ogether under three tabs:
-
"[
dr
iving assistance]"
-
"
Automatic rear wiper in reverse" (Activation of rear wiper coupled to reverse gear: see
t
he " Visibility" section)
-
"
Parking sensors" (Activation of rear parking sensors; refer to the "Driving" section).
-
"
Automatic emergency braking" (Active City Brake; refer to the "Safety" section).
-
"[Lighting ]"
-
"
Mood lighting" (refer to the " Visibility" section).
-
"
[Guide-me-home lighting]" (Automatic guide me home lighting; refer to the " Visibility"
s
ection).
Select
or deselect the tabs at the bottom of the screen to display the functions required.
The
functions accessible in this menu are given in the table below.
Monitoring

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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DS3_en_Chap06_securite_ed01-2015
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

149
DS3_en_Chap06_securite_ed01-2015
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

199
DS3_en_Chap08_info-pratiques_ed01-2015
F Start the compressor by placing the switch a
t the " I"
position and adjust the pressure
t
o the value shown on the vehicle's tyre
p
ressure label.
T
o deflate: press the black button on the
c
ompressor pipe, at the valve connector.
F
O
nce the correct pressure is reached, put
the switch to the " O"
position.
F
R
emove the kit then stow it.
Tyre under-inflation
detection
After repair of the tyre, the warning lamp will remain on until the system is
r
einitialised.
For
more information, refer to the
"
Under-inflation
d
etection"
s
ection.
Should
the pressure of one or more
t
yres be adjusted, it is necessary to
r
einitialise the under-inflation detection
system.
Refer to the "Under-inflation detection"
section.
Practical information

DS3_en_Chap10_caracteristiques_ed01-2015
Identification markingsVarious visible markings for the identification of your vehicle.
A .
V
ehicle identification number (VI
n)
under the bonnet.
This
number is engraved on the bodywork near
t
he
p
assenger
c
ompartment
f
ilter.
B.
V
ehicle identification number on the
bottom edge of the windscreen aper ture.
This
number is indicated on a self-adhesive
l
abel which is visible through the windscreen. The
tyre pressures must be checked
w
hen the tyres are cold, at least once
a
month.
Low tyre pressures increase fuel
consumption.
C. Manufacturer's label.
The
self-destroying label on the left hand
c
entre pillar carries the following information.
-
t
he name of the manufacturer,
-
t
he European type approval number,
-
t
he vehicle identification number (VIN),
-
t
he gross vehicle weight,
-
t
he gross train weight,
-
t
he maximum front axle weight,
-
t
he maximum rear axle weight.
d. T
yre/paint label.
This
label on the left centre pillar, driver's side,
c
arries the following information:
-
t
he tyre pressures, for unladen and laden
conditions,
-
t
he tyre sizes (including the load index and
s
peed rating of the tyre),
-
t
he spare tyre inflation pressure,
-
t
he paint colour code.