Page 11 of 458
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
Page 34 of 458
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.
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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
Page 148 of 458

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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147
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
Page 151 of 458

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
Page 201 of 458
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
Page 264 of 458

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.