2019 CITROEN C4 four wheel drive

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Under-inflation detection
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. The
  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   impairs  
r

oad   holding,   extends   braking   distances  
a

nd   causes   premature   tyre   wear,  
par

ticularly under arduous condition
(high
  loading,   high   speed,   long   journey).
System
  which   automatically   checks   the   pressures   of   the   tyres   while   driving.
The inflation pressures defined for
your vehicle can be found on the tyre
pressure
  label.
For
  more   information   on   the  
i

dentification   markings,   refer   to   the  
c

orresponding
 s
ection.
Tyre
  pressures   should   be   checked  
w

hen the tyres are "cold" (vehicle
stopped
  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.
Driving

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C4-cactus_en_Chap06_conduite_ed01-2016
Under-inflation alertReinitialisation
Before reinitialising the system, ensure t
hat the pressures of the four tyres are
correct for the use of the vehicle and in
line
  with   the   recommendations   on   the  
t

yre   pressure   label.
The under-inflation alert can only
be relied on if the reinitialisation of
the
  system   has   been   done   with   the  
p

ressures in the four tyres correctly
adjusted.
The
  under-inflation   detection   system  
d

oes   not   give   a   warning   if   a   pressure   is  
i

ncorrect   at   the   time   of   reinitialisation.
This
 
is
 
given
 
by
 
fixed
 
illumination
 
of
 
t

his
 
warning
 
lamp,
 
accompanied
 
by
 
a

n
 
audible
 
signal
 
and
 
the
 
display
 
of
 
a
 
m

essage.
It
 
is
 
necessary   to   reinitialise   the   system   every  
t

ime
 
one   or   more   tyre   pressures   are   adjusted,  
a

nd
 
after   changing   one   or   more   wheels.
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),
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. The
 
alert
 
is
 
maintained
 
until
 
the
 
system
 
i

s
 r

einitialised.
6
Driving

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To w i n g
General recommendations
Observe the legislation in force in your country.
E nsure   that   the   weight   of   the   towing   vehicle   is   higher   than   that   of   the   towed   vehicle.
The
  driver   must   remain   at   the   wheel   of   the   towed   vehicle   and   must   have   a   valid   driving   licence.
When
  towing   a   vehicle   with   all   four   wheels   on   the   ground,   always   use   an   approved   towing   arm;
 r

ope   and   straps   are   prohibited.
The
  towing   vehicle   must   move   off   gently.
When
  towing   a   vehicle   with   the   engine   off,   there   is   no   longer   any   power   assistance   for   braking
 o

r   steering.
In
  the   following   cases,   you   must   always   call   on   a   professional   recovery   service:
-
 
v
ehicle   broken   down   on   a   motor way   or   fast   road,
-
f

our-wheel drive vehicle,
-
 
w
hen   it   is   not   possible   to   put   the   gearbox   into   neutral,   unlock   the   steering,   or   release   the
 par

king
 b
rake,
-
 
t
owing   with   only   two   wheels   on   the   ground,
-
 
w
here   there   is   no   approved   towing   arm   available...
Procedure
 
for
 
having
 
your
 
vehicle
 
towed
 
or
 
for
 
towing
 
another   vehicle   using   a   removable   towing   eye.
The towing eye is stowed under the boot floor,
or
 
may
 
be
 
located
 
under
 
the
 
front
 
passenger
 sea
t, d
epending o
n v
ersion.
In the event of a breakdown