Citroen DS5 HYBRID4 RHD 2011.5 1.G Owner's Manual
Page 181 of 358
Safety
Horn
Emergency or
assistance call
This system allows you to make an emergency
or assistance call to the emergency ser vices or
to the dedicated CITROËN ser vice.
Audible warning system to alert other roadusers to an imminent danger.
) Press the central part of the multifunction steering wheel.
Use the horn moderately and only in the following circumstances:- immediate danger,- approaching a location lacking visibility.
For more information on the use of this function, refer to the "Audio andtelematics" section.
Page 182 of 358
Ty r e u n d e r - i nfl ation detection System which automatically checks the pressure of the tyres while driving.
Sensors fitted in each valve trigger a warning in
the event of malfunction (speed above 12 mph(20 km/h)).
The spare wheel is not fitted with a sensor.
All repairs and changing of tyres on a wheel fitted with this system must becarried out by a CITROËN dealer or a
qualified 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 qualifiedworkshop.
This message is also displayed whenone of the wheels is away from thevehicle (being repaired) or when one or more wheels without a sensor are fitted.
The tyre under-inflation detectionsystem is an aid to driving which doesnot replace the need for the driver to bevigilant or to drive responsibly.
This system does not avoid the needto have the tyre pressures checkedregularly (refer to "Identification markings") to ensure that the optimumdynamic per formance of the vehicle is maintained and prevent premature wear of the tyres, particularly in arduousdriving conditions (heavy load, highspeed). 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 detectionsystem may experience temporary inter ference due to electromagnetic signals on a frequency close to thatused by the system.
A message appears in the instrument panel screen, accompanied by an audible signal,
to identify the wheel concerned.
Under-infl ated tyre
This warning lamp andthe STOPwarning lamp come on, accompanied by an audible signal and a message in the
instrument panel screen identifying the wheelconcerned. ) Stop immediately, avoiding any sudden
movement of the steering wheel and
the brakes. ) Change the damaged wheel (puncturedor very deflated tyre), and have the tyre
pressure checked as soon as possible.
Puncture
A message appears in the instrument panel
screen, accompanied by an audible signal,
to identi
fy the wheel or wheels which are not
detected or to indicate a fault in the system.
Contact a CITROËN dealer or a qualified
workshop to replace the faulty sensor(s).
Sensor(s) not detected or faulty
)Check the tyre pressures as soon as possible. This check must be carried out when the tyres are cold.
Page 183 of 358
181Safety
Electronic Stability Programme incorporating
the following systems:
- the anti-lock braking system (ABS) and the electronic brake force distribution (EBFD),
- the emergency braking assistance,
- the anti-slip regulation (ASR) or tractioncontrol,
- the dynamic stability control (DSC).
Electronic stability programme (ESP)
Definitions
Anti-lock braking system (ABS)and electronic brake force
distribution (EBFD)
This system improves the stability and
manoeuvrability of your vehicle when braking and provides improved control in corners, in par ticular on poor or slippery road surfaces.
The ABS prevents wheel lock in the event of
emergency braking.
The electronic brake force distribution system
manages the braking pressure wheel by wheel.
Emergency braking assistance
In an emergency, this system enables you to reach the optimum braking pressure more quickly and therefore reduce the stopping distance. It is triggered in relation to the speed at which
the brake pedal is pressed. This is felt by a reduction in the resistance of the pedal and an increase in the effectiveness of the braking.
Anti-slip regulation (ASR)
The ASR system (also known as Traction Control) optimises traction in order to avoid
wheel slip b
y acting on the brakes of the drivingwheels and on the engine. It also improves
the directional stability of the vehicle onacceleration.
Dynamic stability control (DSC)
If there is a difference between the path followed by the vehicle and that required bythe driver, the DSC monitors each wheel and
automatically acts on the brake of one or more
wheels and on the engine to return the vehicle
to the required path, within the limits of the laws of physics.
Page 184 of 358
Intelligent traction control
s
ystem ("Snow motion")
Your vehicle has a system to help driving onsnow: 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 snow
or compacted snow.In these situations, the intelligent traction control
limits the amount of wheel slip to provide the best traction and trajectory control
for your vehicle.
Operation
Anti-lock braking system (ABS)
and electronic brake force
distribution
(EBFD)
In emergency braking, press very firmly without releasing the pressure.
When changing wheels (tyres and rims),make sure that these are approved for your vehicle.
Normal operation of the ABS may make itself felt by slight vibrations of the brake pedal. When this warnin
g lamp comes on,
accompanied by an audible signal
and a message, it indicates that
there is a fault with the ABS, which
could cause loss of control of the vehicle whenbraking.
When this warnin
g lamp comes on, coupled with the STOPwarning lamp,
accompanied by an audible signal
and a message, it indicates that
th
ere is a fault with the electronic brake forcedistribution (EBFD), which could cause loss of control of the vehicle when braking.
You must stop as soon as it is safe to do so. In both cases, contact a CITROËN dealer or a qualified workshop.
The use of snow tyres is stronglyrecommended on sur faces offering low
levels of adhesion.
Page 185 of 358
Safety
Dynamic stability control (DSC)
Activation
This system is activated automatically eachtime the vehicle is started.
It comes into operation in the event of a grip or
tra
jectory problem.
This is indicated by
flashing of thiswarning lamp in the instrument panel.
Deactivation
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on soft ground...), it may be advisable to deactivate
the DSC system, so that the wheels can move freely and regain grip.
The DSC system offers exceptional
safety in normal driving, but this should not encourage the driver to take extra risks or drive at high speed.
The correct operation of the system depends on obser vation of the manufacturer's recommendationsregarding the wheels (tyres and rims),the braking components, the electronic components and the CITROËN assembly and operation procedures.
After an impact, have the systemchecked by a CITROËN dealer or a qualified workshop.
Operating fault
If this warning lamp comes on,
accompanied by an audible signal
and a message in the instrument
panel screen, this indicates a
fault with the system.
Contact a CITROËN dealer or a qualifiedworkshop to have the system checked.
Reactivation
The system is reactivated automatically each
time the ignition is switched back on or from 30 mph (50 km/h).
) Press the button.
This warnin
g lamp and the indicator
lamp in the button come on: the DSC
system no longer acts on the operation of the engine.
)
Press the button again to
reactivate it manually. But it is recommended that the s
ystem be
reactivated as soon as possible.
Page 186 of 358
Seat belts
Front seat belt s
Rear seat belts
The rear seats are each fitted with a seat belt,
three-point anchorages with iner tia reel and
force limiter (except for the centre rear seat).
Fastening
)Pull the strap, then inser t the tongue in
the buckle. )Check that the seat belt is fastenedcorrectly by pulling the strap.
Unfastening
)Press the red button on the buckle. )Guide the seat belt as it reels in. Th
e front seat belts are fitted with a pretensioning and force limiting system.
This s
ystem improves safety in the frontseats in the event of a front or side impact.
Depending on the severity of the impact, thepretensioning system instantly 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 occupant, soimproving their protection.