2011 Citroen C4 instrument panel

8
133
TRAJECTORY CONTROL SYSTEMS

Anti-slip regulation (ASR) and electronic stability programme(ESP)


The anti-slip regulation (also known as
Traction Control) optimises traction to
prevent skidding of the wheels, by act-
ing on the brakes of the driving wheels
and on the engine.
The electronic stability programme acts
on the brake of one or more wheels and
on the engine to keep the vehicle on the
trajectory required by the driver, within
the limits of the laws of physics.

Activation
These systems are activated automati-
cally each time the vehicle is started.
They come into operation in the event
of a grip or trajectory problem.
This is indicated by fl ashing of
this warning lamp in the instru-
ment panel.

(Intelligent Traction Control)

Your vehicle has a system to help driving
on snow: Intelligent Traction Control.
This automatic system continuously
checks for situations of diffi cult surface
adhesion that could make it diffi cult to
move off or make progress on deep
fresh snow or compacted snow.
In these situations, Intelligent Traction
Control
takes over from the ASR
sys-
tem, limiting the amount of wheel slip to
provide the best traction and trajectory
control, even without snow tyres and
with or without chains.
In extremely severe conditions (snow
on top of ice, sand, deep mud…), it can
be useful to deactivate the ESP/ASR

systems to allow a degree of wheel spin
and so recover grip.

Deactivation
In exceptional conditions (starting a ve-
hicle which is bogged down, stuck in
snow, on soft ground...), it may be ad-
visable to deactivate the ASR and ESP
systems, so that the wheels can move
freely and regain grip.


)
Press the "ESP OFF"
button, located
on the left below the steering wheel.

If this warning lamp comes on
in the instrument panel and
the indicator lamp in the button
comes on, this indicates that
the ASR and ESP systems are
deactivated.

8
SAFETY
135

Seat belt not fastened/unfastened
warning lamp in the instrument panel
When the ignition is switched on,
this warning lamp comes on in
the instrument panel if the driver
and/or the front passenger has
not fastened their seat belt.

1.
Driver's seat belt not fastened/un-
fastened warning lamp.

2.
Front passenger's seat belt not fas-
tened/unfastened warning lamp.
Seat belt not fastened/unfastened
warning lamps display


)
To lower the attachment point,
squeeze the control A
and slide it
downwards.

)
To raise the attachment point, slide
the control A
upwards.

Height adjustment
SEAT BELTS

Front seat belts


The front seat belts are fi tted with a pre-
tensioning and force limiting system.
This system improves safety in the front
seats in the event of a front or side im-
pact. Depending on the severity of the
impact, the pretensioning system in-
stantly tightens the seat belts against
the body of the occupants.
The pretensioning seat belts are active
when the ignition is on.
The force limiter reduces the pressure
of the seat belt on the chest of the oc-
cupant, so improving their protection.











Fastening


)
Pull the strap, then insert the tongue
in the buckle.

)
Check that the seat belt is fastened
correctly by pulling the strap.


Unfastening


)
Press the red button on the buckle.

)
Guide the seat belt as it reels in.
The corresponding warning lamp 1
or 2

comes on in red on the seat belt and pas-
senger's front airbag warning lamps dis-
play, accompanied by an audible signal
and a message in the screen, if the seat
belt is not fastened or is unfastened.

From approximately 12 mph (20 km/h)
this warning lamp fl ashes for two min-
utes accompanied by an audible signal
of increasing volume. Once these two
minutes have elapsed, this warning
lamp remains on until the driver and/or
the front passenger fastens their seat
belt.

8
SAFETY
136
Rear seat belts
The rear seats are each fi tted with a
three-point seat belt, with force limiter
and, for the outer seats, an effort limiter.

Fastening


)
Pull the strap, then insert the tongue
in the buckle.

)
Check that the seat belt is fastened
correctly by pulling the strap.


Unfastening


)
Press the red button on the buckle.

)
Guide the seat belt as it reels in.

)
On the outer seat belts, raise the bar
to the top of the backrest to prevent
the tongue from knocking against
the side trim.
This warning lamp comes on in
the instrument panel when one
or more rear passengers un-
fasten their seat belt.
Seat belt unfastened warning lamp
in the instrument panel

3.
Rear right seat belt warning lamp.

4.
Rear centre seat belt warning lamp.

5.
Rear left seat belt warning lamp.
Seat belt unfastened warning lamps
display
When the ignition is switched on, with
the engine running or when the vehicle
is moving at less than 12 mph (20 km/h),
the corresponding warning lamps 3
, 4

and 5
come on in red for approximately
30 seconds, if the seat belt is not fas-
tened.
When the vehicle is moving at more
than 12 mph (20 km/h), the correspond-
ing warning lamps 3
, 4
and 5
come on
in red, accompanied by an audible sig-
nal and a message in the screen, if a
rear passenger has unfastened their
seat belt.
From approximately 12 mph (20 km/h),
this warning lamp fl ashes for two min-
utes accompanied by an audible sig-
nal of increasing volume. Once these
two minutes have elapsed, this warning
lamp remains on until the one or more
rear passengers fasten their seat belt.

8
SAFETY
139

Deactivation
Only the passenger's front airbag can
be deactivated:


)
with the ignition off
, insert the key
in the passenger airbag deactiva-
tion switch,

)
turn it to the "OFF"
position,

)
then, remove the key keeping the
switch in the new position.
According to version, this warn-
ing lamp comes on in the in-
strument panel and/or in the
seat belt and passenger's front
airbag warning lamps display when the
ignition is on and until the airbag is re-
activated. To assure the safety of your child,
the passenger's front airbag
must be deactivated when you
install a "rear facing" child seat
on the front passenger seat.
Otherwise, the child would risk
being seriously injured or killed if
the airbag were deployed.

Reactivation
When you remove the child seat, turn
the switch to the "ON"
position to re-
activate the airbag and so assure the
safety of your front passenger in the
event of an impact.
With the ignition on, this warn-
ing lamp comes on in the seat
belt and passenger's front air-
bag warning lamps display for
approximately one minute, if the pas-
senger's front airbag is activated.
Operating fault
If this warning lamp comes on
in the instrument panel, accom-
panied by an audible warning
and a message in the screen,
contact a CITROËN dealer or a qualifi ed
workshop to have the system checked.
The airbags may no longer be deployed
in the event of a serious impact.
If this warning lamp fl ashes in
the instrument panel and/or in
the seat belt and passenger's
front airbag warning lamps dis-
play, contact a CITROËN dealer or a
qualifi ed workshop. The passenger's
front airbag may no longer be deployed
in the event of a serious impact.
If even one of the two airbag
warning lamps comes on continu-
ously, do not install a child seat on
the front passenger seat.
Have the system checked by a
CITROËN dealer or a qualifi ed
workshop.

8
SAFETY
140
Lateral airbags
System which protects the driver and
front passenger in the event of a seri-
ous side impact in order to limit the risk
of injury to the chest, between the hip
and the shoulder.
Each lateral airbag is fi tted in the seat
backrest frame, door side.

Activation

The lateral airbags are triggered unilater-ally in the event of a serious side impact
applied to all or part of the side impact
zone B
, perpendicular to the longitudinal
centreline of the vehicle on a horizontal
plane and directed from the outside to-
wards the inside of the vehicle.
The lateral airbag infl ates between the
hip and shoulder of the front occupant
of the vehicle and the corresponding
door trim panel.

A.
Front impact zone.

B.
Side impact zone.


Impact detection zones
Curtain airbags

System which protects the driver and
passengers (with the exception of the
rear centre passenger) in the event of a
serious side impact in order to limit the
risk of injury to the side of the head.
Each curtain airbag is built into the pillars
and the upper passenger compartment
area.

Deployment
The curtain airbag is deployed at the
same time as the corresponding lateral
airbag in the event of a serious side
impact applied to all or part of the side
impact zone B
, perpendicular to the
longitudinal centreline of the vehicle on
a horizontal plane and directed from
the outside towards the inside of the
vehicle.
The curtain airbag infl ates between the
front or rear occupant of the vehicle and
the windows.

Operating fault
If this warning lamp comes on
in the instrument panel, accom-
panied by an audible signal and
a message in the screen, con-
tact a CITROËN dealer or a qualifi ed
workshop to have the system checked.
The airbags may no longer be deployed
in the event of a serious impact.
In the event of a minor impact or
bump on the side of the vehicle
or if the vehicle rolls over, the air-
bag may not be deployed.
In the event of a rear or front
collision, the airbag is not de-
ployed.

9
DRIVING
142
ELECTRIC PARKING BRAKE

The electric parking brake combines
2 operating modes:


- Automatic Application/Release


Application is automatic when the
engine stops, release is automatic
on use of the accelerator (activated
by default),

- Manual Application/Release


The parking brake can be applied/
released manually by pulling control
lever A
.
If this warning lamp comes on
in the instrument panel, the au-
tomatic mode is deactivated.
Programming the mode

Depending on the country of sale of the ve-
hicle, the automatic application when the
engine is switched off and the automatic
release when you press the accelerator
can be deactivated.

It is recommended that you do
not apply the parking brake in
very cold conditions (ice) and
during towing (breakdown, cara-
van...). Deactivate the automatic
functions and release the parking
brake manually.

Manual application

With the vehicle stationary, to apply the
parking brake whether the engine is
running or off, pull
control lever A
.
The application of the parking brake is
confi rmed by:


- lighting of the braking warn-
ing lamp and of the P
warning
lamp in the control lever A
,

- display of the message
"Handbrake on".

Before leaving the vehicle, check
that parking brake warning lamp
in the instrument panel is on
fi xed, not fl ashing.
When the driver’s door is opened with
the engine running, a loud beep is heard
and a message is displayed if the park-
ing brake has not been applied, unless
the gear lever is in position P
(Park) in
the case of an automatic gearbox.
Activation/deactivation is per-
formed using the vehicle confi gu-
ration menu, refer to the section
on parameter settings for the
systems of your vehicle.

The parking brake is then applied and
released manually. When the driver's
door is opened, there is an audible signal
and a message is displayed if the brake
is not applied.

Do not place any object (packet
of cigarettes, telephone...) be-
tween the gear lever and the
electric parking brake control
lever.

9
143

Manual release

With the ignition on or the engine run-
ning, to release the parking brake,
press
on the brake

pedal
or the accel-
erator, pull then release
control A
.
The full application of the parking brake
is confi rmed by:


- extinction of the braking warn-
ing lamp and of the P
warning
lamp in the control lever A
,

- display of the message
"Handbrake off".

If you pull control lever A
with-
out pressing the brake pedal,
the parking brake will not be
released and a warning lamp
will come on in the instrument
panel.


Maximum application

If necessary, you can utilise maximum
application
of the parking brake. It is
obtained by means of a long pull
on
the control lever A
, until you see the
message "Handbrake on maximum"
and a beep is heard.

Maximum application is essential:



- in the case of a vehicle towing a
caravan or a trailer, if the automatic
functions are activated but you are
applying the parking brake manu-
ally,

- when the gradient you are parked
on may vary (e.g. on a ferry, on a
lorry, during towing),

In the case of towing, a loaded vehicle
or parking on a gradient, make a maxi-
mum application of the parking brake
then turn the front wheels towards the
pavement and engage a gear when you
park.
After a maximum application, the re-
lease time will be longer.

Automatic application, engine off

With the vehicle stationary, the parking
brake is automatically applied when
the engine is switched off.

The application of the parking brake is
confi rmed by:


-

illumination of the braking warn-
ing lamp and of the P
warning
lamp in the control lever A
,


- display of the message
"Handbrake on".

Before leaving the vehicle, check
that parking brake warning lamp
in the instrument panel is on
fi xed (not fl ashing).
Never leave a child alone inside
the vehicle with the ignition on,
as they could release the parking
brake.

In the case of towing, a loaded
vehicle or parking on a gradient,
turn the front wheels towards the
pavement and engage a gear
when you park.

9
DRIVING
144

Automatic release

The electric parking brake releases au-
tomatically and progressively
when
you press the accelerator:


)
Manual gearbox:
press down fully
on the clutch pedal, engage fi rst
gear or reverse, press on the accel-
erator pedal and move off.

)

6-speed electronic gearbox system
:
select position A
, M
or R
then press on
the accelerator pedal.

)

Automatic gearbox:
select position D
,
M
or R
then press on the accelerator
pedal.

Full release of the parking brake is con-
fi rmed by:


- extinction of braking warning
lamp and of the P
warning
lamp in the control lever A
,

- display of the message
"Handbrake off".

When stationary, with the engine
running, do not press the ac-
celerator pedal unnecessarily,
as you may release the parking
brake.



Immobilising the vehicle,
engine running
With the engine running and the vehicle
stationary, in order to immobilise the
vehicle it is essential to manually
ap-
ply the parking brake by pulling
control
lever A
.
The application of the parking brake is
confi rmed by:


-
illumination of the braking
warning lamp and the P
warn-
ing lamp in the control lever A
,



- display of the message
"Handbrake on".

Before leaving the vehicle, check
that parking brake warning lamp
on the instrument panel is on
fi xed, not fl ashing.

Particular situations


In certain situations (e.g. starting the
engine), the parking brake can auto-
matically alter its force. This is normal
operation.
To advance your vehicle a few centime-
tres without starting the engine, but with
the ignition on, press on the brake pedal
and release the parking brake by pull-
ing
then releasing
the control lever A
.
The full release of the parking brake is
confi rmed by the warning lamps in the
control lever A
and in the instrument
panel going off and display of the mes-
sage "Handbrake off".
If the parking brake malfunctions while
applied
or if the battery runs fl at, an
emergency release is always possible.

When the driver’s door is opened, a
loud beep is heard and a message is
displayed if the parking brake has not
been applied, unless the selector lever
is in position P
(Park) in the case of an
automatic gearbox.