2020 CITROEN RELAY check engine light

10
Instruments
Be extra vigilant and avoid sudden braking.
Date / TimeFixed.
It is set via the “MODE” menu.
Beam heightFixed.
The headlamps are adjusted from position
0 to 3 depending on the load transported.
Adjust with the buttons on the MODE control
module.
Service spannerFixed.
Service is due.
Refer to the list of checks in the manufacturer's
service schedule then have the service carried
out.
Stop & StartFixed.
With the vehicle stationary (traffic lights,
stop sign, congestion, etc.), the Stop & Start
system puts the engine in STOP mode.
The indicator lamp goes off and the engine
restarts automatically in START mode, as soon
as you move off.
Flashing for a few seconds, then goes off.
STOP mode is temporarily unavailable.
Gear shift indicatorFixed.
The next higher gear may be engaged.
Speed limiterFixed.
The limiter is activated.
Fixed with "OFF".
The limiter is selected and not active.
Indicators
Service information
For a few seconds after the ignition is switched
on, the spanner symbolising service information
comes on: the screen informs you when the next
service is due, in accordance with the servicing
schedule indicated in the manufacturer's service
schedule.


This information is determined in relation to the
distance travelled since the previous service.
Engine oil level
Depending on the engine, the engine oil level is
then displayed, on a scale of 1 (Min) to 5 (Max).
If no scale is displayed, the oil level is
insufficient; it is essential to top it up to prevent
engine damage.
For the measurement of this level to be valid, the
vehicle must be parked on horizontal ground,
with the engine having been off for more than 30
minutes.
If in doubt, check the oil level using the
dipstick.
For more information on Checking levels,
refer to the corresponding section.


After a few seconds, the display returns to its
standard functions.
Engine oil quality
This warning lamp flashes and, if your vehicle is equipped with this function, a
message is displayed at each start: the system
has detected a deterioration of the engine oil. It
is essential to change the oil as soon as
possible.
This 2nd warning lamp, coupled with the
1st, lights up on the instrument panel if the
oil change has not been carried out, and the
degradation of the oil has exceeded a new
threshold. If this warning lamp comes on at

11
Instruments
1regular intervals, the oil has to be changed as
soon as possible.
For 3.0 L HDi engines, the engine speed
is then limited to 3,000 rpm, then 1,500
rpm until the oil is changed. Change the
engine oil to prevent damage.
Resetting the service
indicator
A qualified workshop, equipped with the
diagnostic tool, will stop the permanent flashing
of the warning lamp after each service.
If you have serviced the vehicle yourself, reset
the service indicator as follows:
► Insert the key into the ignition switch.
► Turn it to the MAR - ON position.
► Simultaneously depress the brake and
accelerator pedals for more than 15 seconds.
Refer to the checklist in the
manufacturer's service schedule
provided on delivery of the vehicle.
Reminder of the servicing
information
To access the service indications at any
time, briefly press the MODE button.
Use the up/down arrows to view service intervals
and engine oil quality.
Pressing the MODE button again allows you to
return to the various display menus.
A long press allows you to return to the home
screen.
Menu... Select... Allows you
to...
Service Service
(miles/
km before
service) Display the
remaining
miles/
kilometres to
be travelled
before the
next service.
Oil change
(miles/km
before oil
change) Display the
remaining
miles/
kilometres to
be travelled
before the
next oil
change.
For more information on Vehicle
configuration (MODE) , refer to the
corresponding section.
Coolant temperature

If the needle is positioned between C (Cold)
and H (Hot): normal operation.
In arduous conditions of use or hot climatic
conditions, the needle may move close to the red
graduations.
If the needle enters the red zone or if the
warning lamp lights up:
► stop immediately, turn the ignition off. The
cooling fan may continue to run for a while, up to
approximately 10 minutes.
► wait for the engine to cool down to check the
level and if necessary, top it up.
In case of topping up
Be careful, the cooling circuit is under pressure!
To avoid any risk of burns, take a cloth and
unscrew the cap two turns to relieve the
pressure.
When the pressure has dropped, check the level
and remove the cap to top up.
If the needle remains in the red zone,
contact a CITROËN dealer or a qualified
workshop.

36
Ease of use and comfort
Delayed starting of the
heating system
The start time can be programmed between 1
minute and 24 hours in advance.
You can memorise up to three different start
times, but only programme a single delayed
start.
To perform a daily start at a fixed time, reprogramme the memorised time each
day.
► Press button 3; the screen comes on.
The - -:- - symbol or the previous memorised
time and the corresponding preset number (1, 2
or 3) are displayed for 10 seconds.
To recall the other preset times, press button 3 several times before the end of
the 10 seconds.
Within 10 seconds, press one of the buttons 1 to
select the desired start time.
The memorisation is confirmed by the
disappearance of the start time, the display of
the preset number (1, 2 or 3) and the lighting of
the screen.
By default, preset times are already
memorised in the system (1 = 06:00, 2 =
16:00, 3 = 22:00). Any change cancels and
replaces the previous preset time.
If the battery is disconnected, the default
preset times will be restored.
Setting the comfort
temperature
► Turn control 1 to select a position between
blue (cold) and red (hot) so as to adjust the
temperature to your requirements.
The OFF control on the "Mono-zone" central control panel switches the
function off.
However, a back-up system will automatically
ventilate the rear circuit, even if the control is
in position 0, to avoid the formation of mist.
Air flow
► Set control 2 to the desired position to
increase or decrease the air flow.
Additional programmable heating
The additional programmable heating gradually
brings the engine to a good temperature to
facilitate its starting.
An built-in clock allows the time of its triggering
to be programmed. The passenger compartment
will warm up faster.
The warming-up of the passenger compartment, de-icing and demisting are
facilitated. The control panel for the programmable
additional heating is located next to the steering
wheel, below the MODE control panel.




1. Time setting buttons
2. Immediate switching on of heating button
3. Programme selection button
4. Heating cycle indicator lamp
5. Time display
6. Time setting and display indicator lamp
7. Display of the selected programme number
8. Ventilation indicator lamp
Setting the internal clock
time
Set the clock on the control panel before
programming the deferred starting of the heating.
► Press and hold button 3. The screen and time setting indicator lamp light
up.
► Within ten seconds, press one of the setting
buttons 1 until the exact time is displayed: • > to increase the hours, or
• < to decrease the hours.
By holding the button down, the numbers scroll
faster.
► Release button 3.
When the screen switches off, the time is
memorised.
Reading the time
► Press one of the buttons 1.
The time display indicator lamp comes on and
the time is displayed for approximately ten
seconds.
Immediate starting of the
heating system
Before turning on the heating, check that:
– the temperature control knob is in the Hot air
position (red),
– the air flow control knob is in position 2.
► Press button 2.
The screen and the heating cycle indicator lamp
will come on and stay on for the entire operating
time.

37
Ease of use and comfort
3Delayed starting of the
heating system
The start time can be programmed between 1
minute and 24 hours in advance.
You can memorise up to three different start
times, but only programme a single delayed
start.
To perform a daily start at a fixed time, reprogramme the memorised time each
day.
► Press button 3; the screen comes on.
The - -:- - symbol or the previous memorised
time and the corresponding preset number (1, 2
or 3) are displayed for 10 seconds.
To recall the other preset times, press button 3 several times before the end of
the 10 seconds.
Within 10 seconds, press one of the buttons 1 to
select the desired start time.
The memorisation is confirmed by the
disappearance of the start time, the display of
the preset number (1, 2 or 3) and the lighting of
the screen.
By default, preset times are already
memorised in the system (1 = 06:00, 2 =
16:00, 3 = 22:00). Any change cancels and
replaces the previous preset time.
If the battery is disconnected, the default
preset times will be restored.
Cancelling the programming
► To delete the programmed start time, briefly
press button 3.
The lighting of the screen and the preset number
(1, 2 or 3) go off.
Recalling one of the preset
start times
► Press button 3 as many times as necessary
until the number corresponding to the desired
preset start time (1, 2 or 3) appears.
After ten seconds, the time disappears but
remains memorised while the corresponding
number (1, 2 or 3) and the screen remain on.
Setting the operating
duration
The operating duration can be set between 10
and 60 minutes.
► Press and hold button 3.
► Press simultaneously one of the buttons 1.
The time and the time setting indicator lamp light
up.
► Press and hold button 3 again.
► Press simultaneously one of the buttons 1
again.
The programmed operating duration is displayed
and the heating or ventilation cycle indicator
lamp flashes.
► Set the duration by pressing one of the
buttons 1.
The memorisation is confirmed by the
disappearance of the duration on the screen or
by pressing button 3 again.
Switching the heating off
In the event of a delayed start, the heating
switches off automatically at the end of the
programmed duration.
► In the event of an immediate start, press
button 2 again to switch it off manually.
The heating cycle indicator lamp and the screen
switch off.
Have the additional heating checked at
least once a year at the beginning of
winter. Maintenance and repairs should only
be carried out by a CITROËN dealer or a
qualified workshop.
Use only genuine replacement parts.
To avoid the risks of poisoning or asphyxia, the additional heating must not
be used, even for short periods, in a closed
environment such as a garage or workshop
which are not equipped with an exhaust gas
extraction system.
The additional heating switches off when the
battery voltage is low, so as to allow engine
starting.
The additional heating is fed by the vehicle's
fuel tank. Ensure that the low fuel warning
lamp is not on.

52
Safety
Dynamic stability control
(DSC)
Switching on
The DSC system is activated automatically every
time the vehicle is started.
It comes into operation in the event of a grip or
trajectory problem.
This is indicated by the flashing of this warning lamp on the instrument panel.
Deactivation
This system cannot be deactivated by the driver.
Malfunction
The lighting of this warning lamp, accompanied by an audible signal and
confirmed by a message on the instrument panel
display, indicates a malfunction of the DSC
system.
Have the system checked by a CITROËN dealer
or a qualified workshop.
Anti-slip regulation (ASR)
Deactivation / Reactivation
The ASR system is activated automatically every
time the vehicle is started.
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on soft
ground, etc.), it may be advisable to deactivate
Electronic stability control
(ESC)
Electronic stability control (ESC: Electronic
Stability Control) integrating the following
systems:
– anti-lock braking system (ABS) and electronic
brake force distribution (EBFD),
– emergency braking assistance (EBA),
– wheel anti-slip regulation (ASR) or traction
control,
– dynamic stability control (DSC).
Definitions
Anti-lock braking system (ABS) and
Electronic brake force distribution
(EBFD)
This system improves the stability and handling
of your vehicle when braking and contributes
towards improved control on bends, in particular
on poor or slippery road surfaces.
ABS prevents wheel locking in the event of
emergency braking.
EBFD manages the braking pressure wheel by
wheel.
Emergency braking assistance (EBA)
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 depressed. The effect of this
is a reduction in the resistance of the pedal and
an increase in braking efficiency.
Anti-slip regulation (ASR)
The ASR system (also known as Traction
Control) optimises traction in order to limit
wheel slip, by acting on the brakes of the driving
wheels and on the engine. It also improves the
directional stability of the vehicle on acceleration.
Dynamic stability control (DSC)
If there is a difference between the path followed
by the vehicle and that required by the 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.
Anti-lock braking system (ABS) and electronic brake
force distribution (EBD)
If this warning lamp comes on,
accompanied by an audible signal and a
message in an instrument panel screen, it
indicates a fault with the anti-lock braking system
(ABS) which could result in loss of control of the
vehicle when braking.
If these warning lamps come on,
accompanied by a message in the
instrument panel screen, it indicates a fault with
the electronic brake force distribution (EBFD)
system which could result in 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.
For maximum braking efficiency, a
bedding-in period of around 300 miles
(500 kilometres) is needed. During this
period, it is advisable to avoid any sudden,
repeated and prolonged braking.
The ABS does not provide shorter braking distances. On very slippery
surfaces (ice, oil, etc.) the ABS may extend
braking distances.
When changing wheels (tyres and rims),
ensure that these are approved for your
vehicle.
For emergency braking, press the
brake pedal very hard and do not
release it, even on a slipper surface; you
will then be able to continue steering the
vehicle to avoid an obstacle.
After an impact, have these systems checked by a CITROËN dealer or a
qualified workshop.

54
Safety
Engage a gear corresponding to the speed to
prevent the engine stalling.
► To manually deactivate the system, press the
button; the indicator lamp goes out.
The function may be unavailable if the brakes overheat. Wait a few minutes for
them to cool down before trying again.
Malfunction
When a malfunction of the Hill Assist
Descent Control system occurs, this
warning lamp lights up.
Have the system checked by a CITROËN dealer
or a qualified workshop.
Seat belts
Inertia reel
The seat belts are equipped with an inertia reel
which allows the strap length to automatically
adjust to your shape. The seat belt returns to its
storage automatically when it is not used.
The inertia reels are fitted with a device which
automatically locks the strap in the event of a
collision, emergency braking or if the vehicle rolls
over. It can be released by pulling the strap firmly
and then releasing it so that it reels in slightly.
Pyrotechnic pretensioning
This system improves safety in the event of a
frontal or side impact.
Activation/Deactivation
When starting the vehicle, this system is
deactivated.




► Press this button to activate/deactivate the
system.
When the button indicator lamp comes on, the
system is activated.
This system is active up to approximately 19
mph (30 km/h).
Above approximately 19 mph (30 km/h), the
system is automatically deactivated but the
button indicator lamp remains on.
The system is automatically reactivated as soon
as the speed returns below approximately 19
mph (30 km/h).
Malfunction
When a malfunction of the intelligent
traction control system occurs, this
warning lamp lights up.
Have the system checked by a CITROËN dealer
or a qualified workshop.
Load inertia control
The actual total weight of a commercial vehicle
can vary considerably depending on its load.
The centre of gravity of the vehicle can therefore
move in the longitudinal direction and even in
height.
Each of these variations has repercussions
on braking, traction, cornering behaviour and
overturning.
The load inertia control estimates the actual total
weight of the vehicle by analysing its behaviour,
during acceleration and braking phases.
This system then adapts the intervention of the
DSC and ASR systems according to the weight
distribution of the vehicle. In critical situations,
your vehicle therefore remains more safely on its
trajectory.
Hill Assist Descent
Control
Descent assistance system on roads with low
grip (mud, gravel, etc.) or with a steep gradient.
This system reduces the risk of the vehicle
slipping or running out of control as it moves
downhill.
It maintains the vehicle at a constant speed
during a descent by acting independently and
differentially on the brakes.
Activation / Deactivation
When starting the vehicle, the system is
deactivated.




► With the speed below 19 mph (30 km/h),
press this button to activate the system; the
button indicator lamp lights up.
When the vehicle begins its descent, you can
release the accelerator and brake pedals; the
button indicator lamp flashes.
The brake lamps automatically light up when the
function is activated.
If the speed exceeds 19 mph (30 km/h), the
system is automatically deactivated but the
button indicator lamp remains on.
The system is automatically reactivated as soon
as the speed returns below 19 mph (30 km/h).
You can depress the accelerator or brake pedal again at any time.
For the system to activate, the slope
must be greater than 8%.
Do not use the system with the gearbox in
neutral.

55
Safety
5Engage a gear corresponding to the speed to
prevent the engine stalling.
► To manually deactivate the system, press the
button; the indicator lamp goes out.
The function may be unavailable if the brakes overheat. Wait a few minutes for
them to cool down before trying again.
Malfunction
When a malfunction of the Hill Assist
Descent Control system occurs, this
warning lamp lights up.
Have the system checked by a CITROËN dealer
or a qualified workshop.
Seat belts
Inertia reel
The seat belts are equipped with an inertia reel
which allows the strap length to automatically
adjust to your shape. The seat belt returns to its
storage automatically when it is not used.
The inertia reels are fitted with a device which
automatically locks the strap in the event of a
collision, emergency braking or if the vehicle rolls
over. It can be released by pulling the strap firmly
and then releasing it so that it reels in slightly.
Pyrotechnic pretensioning
This system improves safety in the event of a
frontal or side impact.
Depending on the severity of the impact, the
pyrotechnic pretensioning system instantly
tightens the seat belts against the body of the
occupants.
The pyrotechnic pretensioning seat belts are
enabled when the ignition is on.
Force limiter
This system reduces the pressure of the seat
belt on the chest of the occupant, thus improving
their protection.
In the event of an impact
Depending on the nature and
seriousness of the impacts, the pyrotechnic
device may trigger before and independently
of airbag deployment. Deployment of the
pretensioners is accompanied by a slight
discharge of harmless smoke and a noise,
due to the activation of the pyrotechnic
cartridge incorporated in the system.
In all cases, the airbag warning lamp comes
on.
Following an impact, have the seat belt
system checked, and if necessary replaced,
by a CITROËN dealer or a qualified
workshop.
Front seat belts
The driver's seat is fitted with a pyrotechnic
pretensioner and a force limiter.
On versions with a front passenger airbag, the
passenger's seat is also fitted with a pyrotechnic
pretensioner and a force limiter.
The front bench seat is fitted with two seat belts.
If you install a front bench seat as an
accessory, it must be fitted with approved
seat belts.
Seat belts not fastened warning lamp
When the vehicle is started, this warning
lamp comes on, accompanied by an
increasing audible signal, if the driver and/or the
front passenger has not fastened their seat belt.
This alert works equally well for versions with an
individual passenger front seat as for versions
with a two-seat front bench seat.
Height adjustment

► On the driver's side or the side passenger
seat side, squeeze the control with the belt

57
Safety
5Airbags

The airbags have been designed to optimise the
safety of the occupants in the event of a serious
collision; they work in conjunction with the force
limiting seat belts.
In the event of a serious collision, electronic
detectors record and analyse any abrupt
deceleration of the vehicle:
– if there is a violent impact, the airbags deploy
instantly and help better protect occupants of the
vehicle; immediately after the impact, the airbags
deflate rapidly in order not to hinder the visibility
or the possible exit of the occupants.
– in the case of a minor or rear impact or in
certain rollover conditions, the airbags are not
deployed; the seat belt alone contributes towards
ensuring your protection in these situations.
The airbags do not operate when the
engine is not running.
This equipment will only deploy once. If a
second impact occurs (during the same or a
subsequent accident), the airbag will not be
deployed again.
Deployment of the airbags is
accompanied by a slight discharge of
smoke and a noise, resulting from activation
of the pyrotechnic charge incorporated in the
system.
Although this smoke is not harmful, sensitive
individuals may experience slight irritation.
The noise of the detonation may result in a
slight loss of hearing for a short time.
Front airbags
System that protects the driver and front
passenger(s) in the event of a serious front
impact, in order to limit the risk of head and
chest injury.
The driver's airbag is fitted in the centre of the
steering wheel; the front passenger(s) airbag is
fitted in the dashboard above the glove box.
Lateral airbags and curtain
airbags
If fitted to your vehicle, the lateral airbags are
built into the backrests of the front seats, on the
side by the door.
The curtain airbags are built into the pillars and
the upper passenger compartment area, in the
roof above the front seats.
They inflate between the occupant and the
window.
They deploy on one side only (the side where
the collision occurs).
Malfunction
If this warning lamp comes on, contact a
CITROËN dealer to have the system
checked.
Advice
For the airbags to be fully effective,
observe the safety recommendations
below.
Adopt a normal upright sitting position.
Fasten the seat belt ensuring it is correctly
positioned and adjusted.
Do not leave anything between the occupants
and the airbags (a child, pet, object, etc.), nor
fix or attach anything close to or in the way of
the airbag release trajectory; this could cause
injuries during their deployment.
Never modify the original definition of your
vehicle, particularly in the area directly around
the airbags.
After an accident or if the vehicle has been
stolen, have the airbag systems checked.
All work on the airbag systems must only
be performed by a CITROËN dealer or a
qualified workshop.
Even if all of the precautions mentioned
are observed, a risk of injury or of minor
burns to the head, chest or arms cannot be
ruled out when an airbag is deployed. The
airbag inflates almost instantly (within a few
milliseconds) then deflates within the same