2017 CITROEN RELAY warning

100
AudIBLE rEAr PArKInG SEnSOrS
If fitted on your vehicle, the system consists
of four proximity sensors, installed in the
rear bumper.
They detect any obstacle: person, vehicle,
tree, fence, behind the vehicle during the
manoeuvre.
However, objects the size or thickness of
which are detected at the beginning of the
manoeuvre will no longer be detected at the
end of the manoeuvre: blind spots between
and below the sensors. Examples: stake,
roadworks cone or pavement post.
The rear parking sensor system may be
coupled with a reversing camera.Operation
Engage reverse gear with the gear lever.
The proximity information is indicated by an
audible signal of increasing frequency as the
vehicle approaches the obstacle.
When the distance between the rear of
the vehicle and the obstacle is less than
approximately thirty centimetres, the audible
signal becomes continuous.
Switching off
Come our of reverse gear into neutral.
Operating fault
If this warning lamp comes
on in the instrument panel
accompanied by a message in
the screen, contact a CITROËN
dealer or a qualified workshop.
Good practice
The system cannot, in any circumstances,
replace the need for vigilance on the part of
the driver.
Take even greater care if you reverse with a
rear door open.
In bad weather or in winter, ensure that the
sensors are not covered with mud, ice or
snow.
Parking sensors

103
deactivation
Make a long press on both controls
simultaneously to deactivate the system.
The LEDs remain on.
r
eturn to the nominal floor height
Press the same number of times in reverse
as the level of the position displayed.
r

eactivation
A second long press on both controls
simultaneously reactivates the system. The
LEDs go off.
Automatic correction of loading
floor height
Above 12 mph (20 km/h), the system
automatically returns the rear height to its
nominal value.
Operating fault
If a fault occurs with the system,
this warning lamp comes on.
Good practice
Driving with the suspension set too high or
too low risks damaging components under
the body.
The height may be adjusted automatically to
take account of changes of temperature or
loading.
You must avoid using this control in the
following circumstances:
-

when working underneath the vehicle,
-


when changing a wheel,
-


when the vehicle is being transported by

lorry, train, ferry, boat, ...
To avoid damaging the vehicle or injuring
anyone, check that there is nothing or no
person that might be close to or come into
contact with the vehicle, before raising or
lowering the suspension.
Above 3 mph (5 km/h), the system
reactivates automatically.
Have the system checked by a
CITROËN
dealer or a qualified workshop.
4
tEcHnOLOGY on BOArd
Loading assistance

104
PAr KI n G B r AKEH A z A rd WA rn I n G LAMPS
Press this button, the direction indicators
flash.
They can operate with the ignition off.Applying
Pull the parking brake lever up to immobilise
your vehicle.
Check that the parking brake is applied
firmly before leaving the vehicle.Pull on the parking brake lever, only
with the vehicle stationary.
releasing
Pull the lever up slightly and press the
button to lower the parking brake lever.In the exceptional case of use of the
parking brake when the vehicle is
moving, apply the brake by pulling gently
to avoid locking the rear wheels (risk of
skidding).
If the parking brake is still on or has not
been released properly, this is indicated
by this warning lamp which comes on in
the instrument panel.
When parking on a slope, direct your wheels towards
the pavement and pull the parking brake lever up.
There is no advantage in engaging a gear after
parking the vehicle, particularly if the vehicle is
loaded.
The hazard warning lamps should only
be used in dangerous situations, when
stopping in an emergency or when
driving in unusual conditions.
driving safely

106
Good practice
The ABS system does not provide shorter
braking distances. On very slippery surfaces
(black ice, oil...) the ABS can extend braking
distances. For emergency braking, press the
brake pedal hard and do not release it, even
on a slipper surface; you will then be able to
steer the vehicle and avoid an obstacle.
When replacing wheels (tyres and
rims), ensure that they conform to the
manufacturer's recommendations.Emergency braking assistance
System which, in an emergency, enables
you to obtain the optimum braking pressure
more quickly, thus reducing the stopping
distance.
Operation
It is triggered by the speed at which the
brake pedal is pressed.
The effect of this is a reduction in the
resistance of the pedal and an increase in
braking efficiency.
Switching off
This system cannot be deactivated by
the driver.
Operating fault
If this warning lamp comes on,
accompanied by an audible signal
and a message in the instrument
panel screen, it indicates a fault with
the anti-lock braking system which could result in
loss of control of the vehicle when braking.
For maximum braking efficiency, a
bedding-in period of around 300 miles
(500 kilometres) is needed. During this
period it is recommended that you avoid
harsh, repeated or prolonged braking. If this warning lamp comes on,
together with the ABS warning
lamp, accompanied by a message
in the instrument panel screen,
it indicates a fault with the electronic brake
force distribution which could result in loss
of control of the vehicle when braking. When braking in an emergency, press
firmly without releasing the pressure.
You must stop as soon as it is safe to do so.
In either case, contact a CITROËN dealer or
a qualified workshop.
driving safely

107
trAjEctOrY c O ntr OL SYS t EMS
Switching off
This system cannot be deactivated by
the
driver.
dynamic stability control
( d S c )
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.
5
driving safely
SAFEtY

108
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.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.
driving safely

109
Intelligent traction c ontrol
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
t
raction

c

ontrol takes over from the AS r system,
by transferring drive to the wheel with the
best grip on the ground to provide the best
traction and trajectory control. 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 AS r 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.
5
driving safely
SAFEtY

110
Hill descent control
System that provides assistance when
descending on surfaces with poor grip (mud,
gravel...) or on a steep gradient.
This system reduces the risk of slip or loss
of control of the vehicle while descending
a hill.
It keeps the vehicle at a steady speed during
a descent by acting independently and with
varying force on each of the brakes. Switching off
Press this button, located in the middle of the
dashboard, to deactivate the system; the indicator
lamp in the button goes off.
Above 30 mph (50 km/h), the system is completely
deactivated; 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, the system is
deactivated.
With the speed below 18 mph (30 km/h)
press this button, located in the middle of
the dashboard, to activate the system; the
indicator lamp in the button comes on.
Once the vehicle starts its descent, you can
release the accelerator and brake pedals;
the indicator lamp in the button flashes.
The brake lamps come on automatically
when the system is brought into operation.
If 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).
For the system to operate, the slope
must be steeper than 8%.
Do not use the system with the gearbox in
neutral.
Engage an appropriate gear for the speed of
the vehicle, to avoid the engine stalling.
You can press the accelerator or brake
pedal at any time. The system may not be available if the
brakes overheat. Wait a few minutes
for them to cool down before trying again.
driving safely