traction control CITROEN RELAY 2015 Handbook (in English)

1
AT A GLANCE
5
Presentation
CENTRE CONSOLE
1. Audio / Navigation system.
2. Heating / Air conditioning.
3. Portable ashtray.
4. Cigarette lighter. 5. 12 volt accessory socket (180 W max).
6. Dynamic stability control
(DCS/ASR) / Intelligent traction control.
7. Hill descent control.
8. Lane departure warning system. 9. Hazard warning lamps.
10. Central locking / Locking indicator
lamp.
11 . Demisting / Defrosting.
12. Gear lever.

8
Location
Lane departure warning system 101
Hill descent control 100
ASR, DSC 98-99
Intelligent Traction Control 99-100
Vehicle confi guration
87-88
Setting the time 88
Reversing camera 92
Touch screen audio system 10.1-10.50
Audio system 10.51-10.68
Tachograph
90
Cab fi ttings 75-80
● cigarette lighter,
● glove box - cooled,
● overhead storage,
● portable ashtray,
● courtesy lamps,
● 12 volt socket,
● writing table,
● storage compartments.
Demisting-defrosting
58
Central locking 22
Locking indicator lamp 22
Hazard warning lamps 95 Ventilation, heating, A/C 59-61, 62-63
● manual air conditioning,
● mono-zone digital air
conditioning,
● air recirculation.
Opening the bonnet 122
Dashboard fuses 134-136

27
2
READY TO GO
Instruments and controls
Warning lamp is indicates Solution - action
DSC/ASR flashing.
that it is in operation. The system optimises traction and allows improved
directional stability of the vehicle.
on,
accompanied
by an audible
signal and a
message in the
screen. a fault with the system or the
hill start assist.
Contact a CITROËN dealer or a qualified workshop.
"Safety - Driving safely" section.
on. a fault with the Intelligent
Traction Control.
Emissions
control on. the regeneration of the particle
emissions filter. It is recommended that you leave the engine running
until the warning lamp goes off so that regeneration can
be completed.
"Checks - Levels and checks" section.
Emission control
system on.
a fault with the system. Have the system checked by a CITROËN dealer or a
qualified workshop without delay.
Tyre under-
inflation
detection on.
a tyre deflated or punctured. Park and switch off the ignition. Change or repair the
wheel.
on,
accompanied
by the service
warning lamp. a faulty sensor.
Have it checked by a CITROËN dealer or a qualified
workshop.

63
3
EASE OF USE
and
COMFORT
Ventilation
Comfort value adjustment ring
The settings range between:
- increasing the interior ambient air temperature HI (High) which goes up to
to a maximum setting of 32,
- cooling the interior ambient air temperature LO (Low) which goes down
to a setting of 16.
Air distribution
A press illuminates the LED on the buttons
which distribute the air flow towards:
the windscreen and front side
window vents (demisting/
defrosting the windows),
the central and side vents (chest
and face),
the vents in the front and rear
areas (feet).
The combination of buttons permits
improvement of air distribution.
Air flow
Successive presses of this button
increase (+) or reduce (-) the
force of the air flow to the interior.
Intake of exterior air / Recirculation of interior air
When the LED is on, the air
recirculates inside the passenger
compartment to prevent the entry of exterior
odours and smoke. This position should be
temporary.
When the ambient air comfort level has been
reached, pressing the button switches the
LED off and reopens the exterior air intake.
Pressing the AUTO button also restores
the intake of exterior air. Returning to this
position permits renewal of the air in the
passenger compartment and demisting.
Pressing the AUTO button again restores
the FULL AUTO function.
Rapid Demisting / Defrosting
Pressing this control permits
rapid clearing of the windows.
The LED is on.
The system manages the air conditioning,
the flow and intake of air, the defrosting
of the rear screen and provides optimum
distribution of the air to the windscreen and
front side windows.
If your vehicle is fitted with additional
heating, switch it off to ensure rapid and
effective demisting/defrosting.
ADDITIONAL REAR VENTILATION
The controls for this system,
additional to the standard cabin
ventilation system, are on the
lower dashboard, to the left of the
steering wheel.
Air outlet
A press on this control activates
the extraction of air to the
outside; the LED comes on.
Press again to switch off.
Air inlet
A press on this control activates
the entry of air into the cabin; the
LED comes on. Press again to
switch off.

68
Ventilation
Cancelling the programming
Press this button briefly to clear
the programmed start time.
The screen illumination and the
pre-selection number (e.g. 1) are
switched off.
Good practice
To avoid any risk of poisoning or
asphyxiation, the additional heating must
not be used, even for short periods, in
an enclosed space such as a garage or
workshop which is not fitted with an exhaust
gas extraction system.
The additional heating is supplied by the
vehicle's fuel tank.
Ensure that the fuel gauge indicator lamp is
not at reserve.
Always switch off the additional heating
when filling with fuel to avoid any risk of fire
or explosion.
Do not park the vehicle on an inflammable
surface (dry grass, dead leaves, paper…),
there is a risk of fire.
The temperature near the heater must not
exceed 120 °C. A temperature higher than
this (for example in the case of painting in
an oven) could damage the components of
the electronic circuits.
The additional heating system is fitted with
a temperature limiter which cuts off the
combustion in the event of overheating due
to a lack of coolant.
Top up the coolant, then press the
programme selection control before
switching the heating on again. Have the additional heating system
checked at least once a year at the
beginning of winter. Maintenance and
repairs should only be carried out by a
CITROËN dealer.
Use only genuine replacement parts.
Recalling one of the pre-selected start times
Press this button as many times
as necessary until the number
corresponding to the required
pre-selected start time (e.g. 2)
appears.
After ten seconds, the time is cleared but
remains stored for as long as the number
(e.g. 2) and the screen remain on.
Switching off the heating
Press this button.
The heating cycle indicator lamp
and the screen are switched off.
Two different types of equipment
The additional heating is separate and
programmable. Before you enter the vehicle,
it gradually increases the temperature of the
engine to make starting easier.
This also facilitates passenger compartment
heating, demisting and defrosting.
The additional passenger compartment
heating system supplements the
standard equipment. Its operation may be
independent of the engine.
Switching on of the heating may be
programmable.

98
Driving safely
TRAJECTORY CONTROL SYSTEMS
Switching off
This system cannot be deactivated by
the driver.
Dynamic stability control (DSC)
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.
With the DSC system, maintain course
without trying to countersteer.
Operation
The DSC system is activated automatically
each time the vehicle is started. Operating fault
Illumination of this warning lamp,
accompanied by an audible signal
and confirmed by a message
in the instrument panel screen,
indicates a fault with the DSC system.
Have it checked by a CITROËN dealer or a
qualified workshop. Operation
This system is activated automatically every
time the vehicle is started.
In the event of a problem of adhesion or
trajectory, this system comes into play.
Switching off
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow,
on soft ground...), it may be advisable to
deactivate the ASR system, so that the
wheels can spin freely and regain grip.
- Press this button, located in the
middle of the dashboard, to deactivate
the system.
Anti-slip regulation (ASR)
Anti-slip regulation (also known as traction
control) optimises traction, avoiding wheel
spin by acting on the brakes of the driving
wheels and the engine.
If the button's warning lamp comes
on, accompanied by a message in the
instrument panel screen, this indicates that
the ASR system is deactivated.
It comes into operation in the
event of a grip or trajectory
problem.
This is indicated by flashing of this warning
lamp in the instrument panel.

99
5
Driving safely
SAFETY
Reactivation
The ASR system is reactivated automatically
every time the ignition is switched back on.
- Press this button again to reactivate it manually.
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 ASR system.
Have it checked by a CITROËN dealer or a
qualified workshop.
Good practice
The DSC and ASR systems offer 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 these systems
depend on observation of the manufacturer's
recommendations regarding the wheels
(tyres and rims), the braking components,
the electronic components and assembly
and repair procedures.
After an impact, have these systems
checked by a CITROËN dealer or a qualified
workshop.
Intelligent Traction Control
System to improve traction on slippery
surfaces (snow, black ice, mud...)
This system checks for situations of difficult
surface adhesion that could make it difficult
to move off or make progress.
In these situations, Intelligent Traction
Control takes over from the ASR system,
by transferring drive to the wheel with the
best grip on the ground to provide the best
traction and trajectory control.
Load inertia control
The true total weight of a commercial vehicle
can vary considerably depending on the load
carried. As a result, the centre of gravity of
the vehicle can move, both longitudinally
and in height.
All such variations have an effect on braking,
traction, the behaviour of the vehicle when
cornering and the tendency to overturn.
Load inertia control estimates the true
total weight of the vehicle by analysing its
behaviour under acceleration and braking.
This system then adapts the operation of
the DSC and ASR systems according to the
weight distribution in the vehicle. In critical
situations, your vehicle than remains more
securely on its intended trajectory.

100
Driving safely
System that provides assistance when
descending on surfaces with poor grip
(mud, gravel...).
This system reduces the risk of slip or loss
of control of the vehicle while descending a
hill.
It operates together with the Intelligent
Traction Control .
Hill descent control
Switching on
On starting the vehicle, the system is deactivated.
Press this button, located in the middle of the
dashboard, to activate the system; the indicator
lamp in the button comes on.
For the system to operate, the slope must be
steeper than 8%.
This system is active up to about 18 mph
(30 km/h).
As soon as the speed of the vehicle exceeds
18 mph (30 km/h), the system is automatically
deactivated, but the indicator lamp in the button
stays on.
The system reactivates automatically as soon
as the speed of the vehicle drops below 18 mph
(30 km/h).
Switching off
Press this button, located in the middle of
the dashboard, to deactivate the system; the
indicator lamp in the button goes off.
Operating fault
If a fault occurs with the hill
descent control system, this
warning lamp comes on.
Have the system checked by a CITROËN
dealer or a qualified workshop.
Switching on
On starting the vehicle, this system is
deactivated.
Press this button, located in the middle of
the dashboard, to activate the system; the
indicator lamp in the button comes on.
This system is active up to about 18 mph
(30 km/h).
Once the speed exceed 18 mph (30 km/h),
the system is deactivated automatically, but
the indicator lamp in the button stays on.
The system is reactivated automatically as
soon as the speed drops below 18 mph
(30 km/h).
Switching off
Press this button, located in the middle of
the dashboard, to deactivate the system;
the indicator lamp in the button goes off and
the ASR system is active again.
Operating fault If a fault occurs with the intelligent
traction control system, this
warning lamp comes on.
Have the system checked by a CITROËN
dealer or a qualified workshop.