2015 Citroen C4 AIRCROSS ECU

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"Keyless Entry and Starting" system
Selective unlocking
F With the electronic key on your person, press button B once to unlock only the
driver's door, then pull on the door handle
to open.
F

P
ress button B again to unlock the vehicle
completely.
System that allows the locking, unlocking
and starting of the vehicle while keeping the
electronic key on your person.
It can also be used as a remote control; see the
"Remote control" section.
Unlocking the vehicle
Complete unlocking
F With the electronic key on your person and in one of the defined zones A , press one
of the buttons B or C to unlock the vehicle,
then pull on the handle to open the door.
Y

our passengers can also open their
doors, as soon as the electronic key is in
one of the defined zones. Unlocking is confirmed by an audible
signal and the direction indicators which
flash twice
.
The door mirrors unfold at the same
time.
Selective unlocking is only available on
versions not fitted with deadlocking.
For security, the detection zones in
which the electronic key is operational
have a radius of about 70 cm around
each opening button.
Access

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Rear seatsBench seat with fixed one-piece cushion and split backrest (left hand 2/3, right hand 1/3) which can be folded individually to adapt the load space in the boot.
Folding the backrestRepositioning the seat backrest
F Move the corresponding front seat for ward if necessary.
F

P
lace the head restraints in the low
position (see "Rear head restraints").
F

P
ress control 1 for wards to release the
seat backrest 2 .
F

F
old the seat back 2 on to the cushion. F

S
traighten the seat backrest 2
and secure it.
F
C
heck that the red indicator, located next to
the control 1 , is no longer visible.
When repositioning the seat backrests, they
can be locked in one of two different positions,
depending on the speed in which the operation
is carried out:
-
i
f done quickly, the backrest returns to its
original position 1,
-

i
f done slowly, the backrest goes into the
vertical position 2 .
To go from position 2 to position 1 , simply
release the backrest and push it until it locks
in place.
3
Comfort

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Mat
When removing the mat on the driver's side,
move back the seat as far as possible and
remove the fixings.
When refitting, position the mat correctly on the
pins and clip the fixings. Check that the mat is
secured firmly.
To prevent any risk of jamming under the
pedals:
-
o
nly use mats suited to the fixings already
present in the vehicle; it is imperative that
these fixings are used.
-

n
ever fit one mat on top of another.
Sun visor Glove box
It has dedicated locations for storing a water
bottle, the vehicle's handbook pack...
F

T
o open the glove box, raise the handle.
It is illuminated when the lid is opened.
It houses the front passenger airbag
deactivation switch A .
If the vehicle is fitted with air conditioning,
it has a ventilation nozzle B , distributing the
same conditioned air as the vents in the
passenger compartment.
If your vehicle is fitted with the "
ke

yless Entry
and Starting" system, it contains the back-up
starting unit C .
The sun visors fold for wards, and to the side
when they are unhooked.
They are fitted with a courtesy mirror and a
ticket holder.
3
Comfort

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Rear parcel shelfStowing rings
There are four stowing rings in the boot for
securing luggage:
-

t
wo rings are located on the boot floor,
-

t
wo rings are located on the rear side
pillars.
To remove the shelf:
F
u
nhook the two cords,
F

r

aise the shelf slightly, then remove it.
There are several options for storing the shelf:
-

e

ither upright behind the front seats,
-

o

r flat at the base of the boot.
3
Comfort

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direction indicators
F Left: lower the lighting stalk passing the point of resistance.
F

R
ight: raise the lighting stalk passing the
point of resistance.
Three flashes of the direction indicators
F Press briefly upwards or downwards, without going beyond the point of resistance; the
direction indicators will flash 3 times.
Hazard warning lamps
A visual warning by means of the direction
indicators 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
come on automatically.
They switch off automatically the first time you
accelerate.
F

Y
ou can also switch them off by pressing
the button.
Horn
F Press the central part of the steering wheel.
6
Safety

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Group of supplementary systems which help
you to obtain optimum braking in complete
safety in emergency situations:
-
a
nti-lock braking system (ABS),
-

e
lectronic brake force distribution (EBFD).
Braking assistance systems
Anti-lock braking system
and electronic brake force
distribution
Linked systems which improve the stability and
manoeuvrability of your vehicle when braking,
in particular on poor or slippery sur faces.
Activation
The anti-lock braking system is active if the
vehicle speed is higher than 6 mph (10 km/h).
It is deactivated when the vehicle speed falls
below 3 mph (5 km/h).
The anti-lock braking system comes into
operation automatically when there is a risk of
wheel lock.
Normal operation of the ABS may make itself
felt by slight vibration of the brake pedal.
Operating fault
When the vehicle is stationary
If this warning lamp comes on, accompanied by
the indication on the instrument panel screen, it
indicates a malfunction of the anti-lock braking
system which could result in a loss of control of
the vehicle when braking.
The vehicle retains normal braking.
Drive carefully at moderate speed and contact
a CITROËN dealer or a qualified workshop as
soon as possible.
When braking in an emergency, press
very firmly without releasing the
pressure. The warning lamp comes on for a few
seconds when the ignition is switched on
(ON position). If it does not switch off or
does not come on, contact a CITROËN
dealer or a qualified workshop.
Safety

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When the vehicle is moving
If this warning lamp comes
on continuously it indicates a
malfunction of the anti-lock braking
system which could result in a loss of
control of the vehicle on braking.
The two warning lamps comes on at the
same time and the two warnings are
displayed alternately in the instrument
panel screen.
When replacing wheels (tyres and
rims), ensure that they conform to the
manufacturer's recommendations.
The vehicle retains normal braking.
Drive carefully at moderate speed and contact
a CITROËN dealer or qualified workshop as
soon as possible.
If these two warning lamps come on, linked
with the warnings on the instrument panel
screen, they indicate a malfunction of the
electronic brake force distribution which could
result in a loss of control of the vehicle on
braking.
You must stop as soon as it is safe to do so.
Contact a CITR
oËn

dealer or a qualified
workshop.
6
Safety

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Associated systems which guarantee the directional stability of the vehicle within the limits of the laws of physics:
- t raction control (TCL),
-

a
ctive stability control (ASC).
Traction control and active stability control
Traction control optimises traction to prevent
wheel spin, by acting on the brakes of the
driving wheels and on the engine.
Active stability control acts on the brake of one
or more wheels and on the engine to keep the
vehicle on the trajectory required by the driver.Activation
These systems are activated automatically
each time the vehicle is started.
The illumination of this warning lamp
in the instrument panel indicates
that the ASC and TCL systems are
deactivated.
Deactivation
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on soft
ground, ...), it may be advisable to deactivate
the ASC system, so that the wheels can move
freely and regain grip.
This is indicated by flashing of this
symbol on the instrument panel
screen.
Trajectory control systems
F Press this button, located to the left of the steering wheel, until the symbol appears in
the instrument panel screen.
Operation
They operate when the vehicle speed is higher
than 10 mph (15 km/h).
They come into operation in the event of a grip
or trajectory problem.
Safety