2012 Citroen DS4 tyre pressure

9Familiarisation
Exterior


Welcome lighting

This additional exterior and interior lighting, controlled remotely, makes your approach to
the vehicle easier when the light is poor.
Temporary puncture repair kit

This kit is a complete system, consisting of acompressor and a sealant car tridge, for the
temporary repair of a tyre.
12
9

Under-infl ation detection
This system continuously monitors the pressure
in each tyre and warns you in the event of a
puncture or under-inflated tyre.
176
Blind spot sensors
In cer tain conditions, this system
detects the presence of a vehicle in
the blind spot. It informs you by means
of a warning lamp in the corresponding door mirror.
218

35
Limit the causes of excess
consumption
Spread loads throughout the vehicle; placethe heaviest items in the bottom of the boot, as close as possible to the rear seats. Limit the loads carried in the vehicle andreduce wind resistance (roof bars, roof rack,bicycle carrier, trailer...). Use a roof box in preference. Remove roof bars and roof racks after use.


At the end of winter, remove snow tyres andrefit your summer tyres.



Observe the recommendations
on maintenance


Check the tyre pressures regularly, whencold, referring to the label in the door aperture, driver's side.
Carry out this check in par ticular:


- before a long journey,

- at each change of season,

- after a long period out of use.
Don't forget the spare wheel and the tyres on any trailer or caravan.


Have your vehicle ser viced regularly (engineoil, oil filter, air filter...) and obser ve theschedule of operations recommended by the manufacturer.




When refuelling, do not continue after the 3 rdcut-off of the nozzle to avoid any overflow.

At the wheel of your new vehicle, it is only after the first 1 800 miles (3 000 kilometres) that you will see the fuel consumption settledown to a consistent average.
Switch off the headlamps and front foglamps when the level of light does not require their use.

Avoid running the engine before moving off,particularly in winter; your vehicle will warmup much faster while driving.

As a passenger, if you avoid connecting your multimedia devices (film, music, videogame...), you will contribute towards limitingthe consumption of electrical energy, and soof fuel. Disconnect your por table devices beforeleaving the vehicle.

When the engine is running or the vehicle is
being driven, the illumination of one of the following warning lamps indicates a malfunction
which requires action on the par t of the driver.
The warning comes on in the instrument panel
or appears in the t
ype 2 instrument panel central screen.
If your vehicle has a screen, a warning lamp coming on is always accompanied by the display of an additional message, to assist you in identifying the problem.If you encounter any problems, do not hesitate to contact a CITROËN dealer or a qualified
workshop.

Warning lampis onCauseAction/Observations
STOP
fixed, alone or associated with
another warning lamp,
accompanied by an
audible si
gnal and a
message in the screen. Illumination o
f this warning lamp is
associated with a serious brakingsystem, power steering, enginelubrication or cooling system
malfunction or a punctured tyre.
Stop as soon as it is safe to do so as there is a risk that
the engine will cut out while driving.
Park, switch off the ignition and contact a CITROËN
dealer or a qualified workshop.
Maximum coolanttemperature
fixed red. The temperature of the cooling system is too high. Stop as soon as it is safe to do so.
Wait until the engine has cooled down before toppingup the level, if necessary.
If the problem persists, contact a CITROËN dealer or qualified workshop.
Engine oil pressure
fixed. There is a fault with the enginelubrication system. You must stop as soon it is safe to do so.
Park, switch off the ignition and contact a CITROËN
dealer or a qualified workshop.

Monitoring
Power steeringfixed. The power steering has a fault. Drive carefully at reduced speed.
Have it checked by a CITROËN dealer or a qualified
workshop.
Under-inflatedtyrefixed. The pressure in one or more wheels
is too low.Check the pressure of the tyres as soon as possible.
This check should preferably be carried out when
the tyres are cold.
Directional headlampsflashing. The directional headlamps system
has a fault.Have it checked by a CITROËN dealer or a qualified workshop.
Warning lampis onCauseAction/Observations
Foot on the brakepedalfixed. The brake pedal is not pressed. With the 6 -speed electronic gearbox system, press
the brake pedal to star t the engine (lever in position N).
If you wish to release the parking brake withoutpressing the brake pedal, this warning lamp willremain on.
flashing. With the 6-speed electronic gearbox
system, if you hold the vehicle on an
incline using the accelerator for too long, the clutch overheats.Use the brake pedal and
/or the electric parking brake.
Airbags

temporarily. This lamp comes on for a fewseconds when you turn on the
ignition, then goes off. This lamp should
go off when the engine is started.
If it does not go off, contact a CITROËN dealer or a qualified workshop.

fix
ed. One of the airbag or seat belt pretensioner systems has a fault. Have it checked by a CITROËN dealer or a qualified
workshop.

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.

177Safety

Sensor(s) not detected or faulty
A message appears in the screen,
accompanied by an audible signal, to identify
the wheel or wheels which are not detected or
to indicate a malfunction in the s
ystem.
Contact a CITROËN dealer or a qualified
workshop to replace the
faulty sensor(s).
All repairs and changing of tyres on a wheel fitted with this system must be carried out by a CITROËN dealer or aqualified workshop.
If, when changing a tyre, you install a wheel which is not detected by your vehicle (example: fitting of snow tyres),you must have the system reinitialised by a CITROËN dealer or a qualified workshop.
This system does not avoid the needto have the tyre pressures checkedregularly (refer to the "Identificationmarkings" section) to ensure that
the optimum dynamic performanceof the vehicle is maintained andprevent premature wear of the tyres, particularly in arduous driving conditions (heavy load, high speed). The tyre pressures must be checked cold, at least once a month. Remember to check the pressure of the spare wheel. The tyre under-inflation detection system may experience temporary inter ference due to electro-magnetic emissions on a frequency close to thatused by the system.

This message is also displayed when one of the wheels is away from the vehicle (being repaired) or when oneor more wheels without a sensor are fitted.
If your vehicle is equipped with a spare wheel, this is not fitted with a sensor.

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.

179Safety
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.