2011.5 Citroen DS4 RHD brake

Ty r e u n d e r - i nfl ation detection
System which automatically and continuously checks the pressure of the tyres while driving.Sensors fitted in each valve trigger a warning
in the event of problem (speed above 12 mph(20 km/h)).

Puncture

The tyre under-inflation detectionsystem is an aid to driving which doesnot replace the need for the driver to bevigilant or to drive responsibly.


Under-infl ated tyre
This warning lamp is displayed on the
instrument panel and/or a message appears
in the screen, accompanied by an audible
si
gnal, to identify the wheel concerned.
The STOPwarning lamp comes on and/or this warning lamp is displayed on
the instrument panel, accompanied by
an audible signal and a message in the
screen identifying the wheel concerned.
)Stop as soon as it is safe to do so, avoiding any sudden movement of the steering
wheel and the brakes.)Repair or change the damaged wheel(punctured or very deflated tyre), and have
the tyre pressure checked as soon as possible.
) Check the tyre pressures as soon as possible.
This check must be carried out when the tyres
are cold.

Braking assistance systems
Group of supplementary systems which helpyou to obtain optimum braking in complete safety in emergency situations:
- anti-lock braking system (ABS),
- electronic brake force distribution
(EBFD),
- emergency braking assistance (EBA).

Anti-lock braking system
and electronic brake force
distribution
Linked systems which improve the stability and
manoeuvrability of your vehicle when braking,
in par ticular on poor or slippery surfaces.
Activation
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.
When braking in an emergency, pressvery firmly without releasing thepressure.


Operating fault
If this warning lamp comes on,
together with the STOPand ABSwarning lamps, accompanied by an
audible signal and a message in the screen, it
indicates a malfunction of the electronic brake force distribution which could result in loss of control of the vehicle when braking.You must stop as soon as it is safe to do so.

When replacing wheels (tyres andrims), ensure that they conform to themanufacturer's recommendations.
If this warnin
g lamp comes on,
accompanied by an audible signaland a message in the screen, it
indicates a malfunction of the anti-lock brakingsystem which could result in loss of control of
the vehicle when braking.
In either case, contact a CITROËN dealer or a
qualified workshop.

177Safety
Emergency braking assistance
System which, in an emergency, enables you
to obtain the optimum braking pressure more
quickly, thus reducing the stopping distance.

Activation

It is triggered by the speed at which the brake pedal is pressed.
The effect of this is a reduction in theresistance of the pedal and an increase in
braking efficiency.
When braking in an emergency, press firmly without releasing the pressure.

















Trajectory control systems (ESP)
Anti-slip regulation (ASR)
and electronic stability
control (ESC)
The anti-slip regulation (also known as traction control) optimises traction to prevent skidding
of the wheels, by acting on the brakes of the
driving wheels and on the engine.The electronic 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, within the limits of the laws of physics.
Activation
These systems are activated automaticallyeach time the vehicle is started.
They come into operation in the event of a gripor trajectory problem.
This is indicated b
y flashing of this
warning lamp in the instrument panel.

Intelligent traction control
s
ystem ("Snow motion")
Your vehicle has a system to help driving on snow: intelligent traction control.
This system detects situations of difficult surface adhesion that could make it difficult to
move off or make progress on deep fresh snowor compacted snow.
In these situations, the intelligent tractioncontrol limits the amount of wheel slip to
provide the best traction and trajectory control
for your vehicle.
The use of snow tyres is strongly recommended on surfaces offering low levels of adhesion.

Electric parking brake
The electric parking brake combines
2 operational modes:- Automatic Application/ReleaseApplication is automatic when the engine
stops, release is automatic on use of the
accelerator (activated by default),-Manual Application/ReleaseThe parking brake can be applied/releasedmanually by pulling control lever A.

Do not place any object (packet of cigarettes, telephone...) between thegear lever and the electric parkingbrake control lever.


It is recommended that you do notapply the parking brake in very coldconditions (ice) and during towing (breakdown, caravan...). Deactivate the automatic functions and release the parking brake manually.
If this warnin
g lamp comes on in
the instrument panel, the automatic
m
ode is deactivated.
Programming the mode

Depending on the country of sale of the vehicle,
the automatic application when the engine is
switched off and the automatic release whenyou press the accelerator can be deactivated.

Activation/deactivation is done
using the vehicle configurationmenu; refer to the section covering
the configuration of your vehicle'ssystems.

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

193Driving
With the ignition on or the engine running, torelease the parking brake, press on the brakepedalor the accelerator, pull then release
control A
.
Manual release


Before leaving the vehicle, ensurethat parking brake warning lamp inthe instrument panel is on fixed, not flashing.


Manual application
With the vehicle stationary, to apply the parkingbrake whether the engine is running or off, pullcontrol lever A.

The application of the parking brake is confirmed by:
- illumination o
f the braking warninglamp and of the P
warning lamp in
the control lever A,
- displa
y of the message"Handbrake on".
When the driver
’s door is opened with the engine running, a message is displayed
accompanied by an audible signal if the parkingbrake has not been applied, except in the case
of an automatic gearbox with the gear lever in position P.P
The full application of the parking brake is confirmed by:


- the brakin
g warning lamp and
the P warning lamp in the controllever Agoing off,

- displa
y of the message
"Handbrake off".
I
f you pull control lever A
without
pressing the brake pedal, the parkingbrake will not be released and awarning lamp will come on in the
instrument panel.


Maximum application

If necessary, you can make a maximum application
of the parking brake. This is obtained by means of a long pullon the control
l
ever 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 parkingbrake manually,

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

In the case of towing, a loaded vehicle or parking on a gradient, make amaximum application of the parkingbrake then turn the front wheelstowards the pavement and engage agear when you park.
After a maximum application, the release time will be longer.

With the vehicle stationary, the parking brake is automatically applied when the engine is
switched off.
Automatic application,
engine off
In the case of towing, a loaded vehicleor parking on a gradient, turn the front wheels towards the pavement and engage a gear when you park.
Before leaving the vehicle, ensurethat parking brake warning lamp inthe instrument panel is on fixed (notflashing). Never leave a child alone inside the vehicle with the ignition on, as they could release the parking brake.


- illumination o
f the braking warninglamp and of the P
warning lamp in
the control lever A ,

- displa
y of the message "Handbrake on". The application of the parkin
g brake is confirmed by:

Automatic release

The electric parking brake releasesautomatically and progressivelywhen you press the accelerator: )Manual gearbox:
press down fully on the clutch pedal, engage first gear or reverse,press on the accelerator pedal andmove off.)6-speed electronic gearbox system:select position A
, M
or Rthen press on theaccelerator pedal. )Automatic gearbox
: select position D, Mor Rthen press the accelerator pedal.


When stationary, with the engine running, donot press the accelerator pedal unnecessarily, as you may release the parking brake.

Full release of the parking brake is confirmed by:


- the brakin
g warning lamp and
the Pwarning lamp in the control lever A
going off,

- displa
y of the message"Handbrake off".

195
Driving
With the engine running and the vehiclestationary, in order to immobilise the vehicleit is essential to manuallyapply the parking
brake by pulling
control lever A.


Immobilising the vehicle,
engine running


The emergency braking must only beused in exceptional circumstances.


Before leaving the vehicle, ensurethat parking brake warning lamp inthe instrument panel is on fixed, not flashing. The application of the parkin
g brake is confirmed by:
- illumination of the brakin
g
warning lamp and the Pwarning lamp in the control lever A ,
- displa
y of the message"Handbrake on".
When the driver’s door is opened, a messa
ge is
displa
yed accompanied by an audible signal, if
the parking brake has not been applied, except
in the case of an automatic gearbox with thegear lever in position P.P
Particular situations
In cer tain situations (e.g. star ting the engine),
the parking brake can automatically alter its force. This is normal operation.
To advance
your vehicle a few centimetres without star ting the engine, but with the ignition
on, press on the brake pedal and release the
parking brake by pulling
then releasing
the control lever A. The full release of the parkingbrake is confirmed by the warning lampsin the control lever A
and in the instrumentpanel going off and display of the message"Handbrake off".
If the parking brake develops a fault while appliedor if the battery runs flat, an
emergency release is always possible.



Emergency braking



In the event of failure of the electronicstability control system, signalled
by the illumination of this warning
lamp, braking stability is then not guaranteed.
In this event, stability must be assured by thedriver by repeating alternate "pull-release" actions on the control lever A.

In the event of a failure of the main servicebrake or in an exceptional situation (e.g. driver
taken ill, under instruction, etc) a continuous
pull on the control lever Awill stop the vehicle.
The electronic stability control provides stability
durin
g emergency braking.
If the emergency braking malfunctions,
the message "Parking brake faulty" will be
displayed.

In the event of the electric parking brakemalfunctioning or the battery running flat, anemergency manual device can release theparking brake.)Immobilise the vehicle (or keep it
stationary, if the brake pedal is pressed),
with the engine running, by engagingfirst gear (manual gearbox), position P(automatic gearbox) or position M or R(6 -speed electronic gearbox system).
Emergency release
)
Switch off the engine but leave the ignition on. If it is not possible to immobilise the
vehicle, do not operate the control andcontact a CITROËN dealer or a qualified
workshop without delay.) Fetch the two vehicle blocks B
and the
release device C, located under the boot carpet.
)Immobilise the vehicle by placing the blocks
in front or behind the two front wheels,
opposite to the direction of the slope.)Remove the storage box under the bootcarpet for access to the emergency releasedevice.