Belt CITROEN RELAY 2020 Handbook (in English)
Page 4 of 196
2
Contents
 
 
 
 
 
   ■
Overview
  ■
Eco-driving
 1Instruments
Instrument panel  6
Warning and indicator lamps  6
Indicators  10
Vehicle configuration (MODE) 
 13
Touch screen audio and multimedia system  18
Setting the date and time  18
Trip computer  19
Trip computer  19
 2Access
Key  20
Remote control  20
Front doors  23
Sliding side door  23
Rear doors  23
Alarm  24
Electric windows  25
 3Ease of use and comfort
Front seats  27
Front bench seat  28
Rear seats  29
Rear bench seat  29
Steering wheel adjustment  30
Mirrors  31
Heating and Ventilation  31
Heating / Manual air conditioning  32
Automatic air conditioning  33
Additional heating systems  34
Rear heating/air conditioning  35
Additional programmable heating  36
Front demist - defrost  38
Rear screen de-icing  38
Cab layout  38
Rear fittings 
 42
Exterior fittings  45
 4Lighting and visibility
Lighting control stalk  46
Direction indicators  46
Automatic headlamps  47
Headlamp beam height adjustment  48
Wiper control stalk  49
Changing a wiper blade  50
 5Safety
General safety recommendations  51
Hazard warning lamps  51
Horn  51
Electronic stability control (ESC)  52
Seat belts  55
Airbags  57
Child seats  58
Deactivating the front passenger airbag  60
ISOFIX seats  61
Child lock  63
 6Driving
Driving recommendations  64
Starting-switching off the engine  67
Battery standby system  67
Parking brake  68
Gearbox  68
Gear shift indicator  69
Stop & Start  69
Hill start assist  70
Tyre under-inflation detection 
 71
Pneumatic suspension  72
Driving and manoeuvring aids - General 
recommendations 
 73
Speed Limit recognition and  
recommendation 
 75
Speed limiter  76
Cruise control - particular   
recommendations 
 78
Cruise control  78
Cruise control (3L HDi engine)  79
Lane Departure Warning System  80
Blind Spot Monitoring System with trailer 
detection 
 83
Active Safety Brake with Collision Risk   
Alert and Intelligent emergency braking 
assistance 
 84
Rear parking sensors  87
Reversing Camera  87
 7Practical information
Fuel  90  
Page 9 of 196
7
Instruments
1For more information on a system or a function, 
refer to the corresponding section.
Warning lamp continuously 
lit
The illumination of a red or orange warning lamp 
indicates the occurrence of a fault that needs 
further investigation.
If a warning lamp remains lit
The references (1), (2) and (3) in the warning 
and indicator lamp description indicate whether 
you should contact a qualified professional in 
addition to the immediate recommended actions.
(1): You must stop the vehicle .
Stop as soon as it is safe to do so and switch off 
the ignition.
(2): Contact a CITROËN dealer or a qualified 
workshop.
(3): Visit a CITROËN dealer or a qualified 
workshop.
List of warning and 
indicator lamps
Red warning/indicator lamps
Coolant temperature
On H in the red zone or fixed with the 
needle in the red zone.
The coolant temperature is too high and/or has 
abnormally increased. Carry out (1), then wait until the engine has 
cooled down before topping up the level, if 
necessary. If the problem persists, carry out (2).
Engine oil pressureFlashing, for a few seconds, accompanied 
by a message in the display.
The engine oil quality is deteriorated.
Change the engine oil as soon as possible.
After a second alert level, engine performance 
will be limited.
Temporarily or permanently on, with the  engine running.
A lack of oil or a major malfunction is detected.
Carry out (1) then manually check the level.
If necessary, top up.
If the level is correct, carry out (2).
Battery chargeFixed.
A malfunction in the charging circuit or the 
battery is detected.
Check the battery terminals.
Fixed or flashing, despite the checks.
An ignition or injection malfunction is 
detected.
Carry out (2).
Opening detectionFixed.
One of the vehicle access openings is not 
properly closed.
Check that the cab doors, the rear and side 
doors and the bonnet are closed.
Power steeringFixed, accompanied by an audible signal 
and a message on the screen.
The power steering has a fault.
Drive carefully at moderate speed, then carry 
out (3).
AirbagsFixed or flashing.
One of the airbags or seat belt 
pyrotechnic pretensioners is faulty.
Carry out (3).
Seat belt not fastenedFixed, then flashing.
The driver has not fastened his seat belt.
Pull the strap then insert the tongue in the 
buckle.
Accompanied by an audible signal, then  fixed.
The vehicle is moving with the driver's seat belt 
unfastened.
Check that the seat belt is fastened correctly by 
pulling the strap.
Pneumatic suspensionFixed.
The system has a fault.
Carry out (3).
Parking brakeFixed.
The parking brake is applied or not 
properly released.  
Page 30 of 196
28
Ease of use and comfort
Rear seats 
 
Backrest angle 
 
► Turn the knob to adjust the backrest angle.
Adjustable armrest 
 
►  Raise or lower the armrest.
►  Turn the knob, located under the end of the 
armrest, to lock it in the desired position.
Heated seat 
 
Use this control to switch the heating of the seat 
on or off.
Do not use the function when the seat 
is not occupied.
Reduce the heating intensity as soon as 
possible.
When the seat and passenger compartment 
have reached a satisfactory temperature, 
switch the function off; reducing electricity 
consumption in turn decreases fuel 
consumption.
Prolonged use of heated seats is not 
recommended for people with sensitive 
skin.
There is a risk of burns for people whose 
perception of heat is impaired (illness, taking 
medication, etc.).
To keep the heated pad intact and to prevent 
a short circuit:
–  Do not place heavy or sharp objects on the 
seat.
–  Do not kneel or stand on the seat.
–  Do not spill liquids onto the seat.
–  Never use the heating function if the seat 
is damp.
Seat with adjustable shock 
absorption
 
 
►  Turn the knob to adjust the shock 
absorption according to the driver’s weight.
Swivelling seat 
 
►  Press the control to rotate the seat 180°.
Two-seat front bench seat
It is equipped with two head restraints and two 
seat belts.
Writing table 
 
The central seat backrest folds to form a writing 
table.
►  Pull the strap located at the top of the 
backrest cushion.  
Page 32 of 196
30
Ease of use and comfort
As a safety precaution, these operations should only be carried out while the 
vehicle is stationary.
Mirrors
Door mirrors 
 
They are divided into two zones:
A -  Upper mirror
B -  Lower mirror
The mirrors are spherical in shape to widen the 
lateral field of vision. The objects that you see in 
the mirrors are in fact closer than they appear. 
This must be taken into account to correctly 
assess the distance.
The shell integrates the direction indicator 
side repeater and the aerials, according to the 
equipment available on board (GPS, GSM, 
Radio, etc.).
 
Access to rear seats
►  Lower the head restraints, then lift the first 
handle and tilt the backrest forwards.
Folded backrest position
►  Remove the head restraints and tilt the 
backrest as described above.
►  With the right hand, lift the second handle 
and tip the backrest 5° backwards.
►  With the left hand, tip the backrest completely 
forwards onto the seat.
Removing the bench seat
To remove the bench seat, the presence  of at least two people is required.
►  Fold the backrest onto the cushion as 
previously described.
 
 
►  Turn both handles forwards to release the 
rear anchorages.
►  Tilt the base of the bench seat forwards to 
place the bench seat in an upright position.
 
 
►  Tilt both handles upwards to release the front 
anchorages.
►  Lift the bench seat and remove it.
Check that the seat belts are always 
accessible to the passenger and easy to 
fasten.
A passenger must not take their seat without 
adjusting the seat's head restraint correctly 
and adjusting and fastening the seat belt.
Do not remove a head restraint without 
storing it and securing it to a support.
Do not allow anyone to travel in row 3 with the 
row 2 bench in the vertical position.
Do not leave any objects on the folded 
backrest of row 2.
Steering wheel 
adjustment
►  With the vehicle stationary, first adjust your 
seat to the most suitable position.
 
 
►  Unlock the steering wheel by pulling the 
control towards you.
►  Adjust the reach of the steering wheel, then 
lock it by fully lowering the control.  
Page 56 of 196
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.  
Page 57 of 196
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   
Page 58 of 196
56
Safety
Airbags 
 
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.
return and slide the whole thing, then release to 
lock.
The belt associated with the central seat is not 
height adjustable.
If the driver's seat belt is unfastened, 
START mode of Stop & Start will not be 
invoked. The engine can then only be 
restarted using the key.
Rear seat belts 
 
The rear seats / bench seats are fitted with 
three-point inertia reel seat belts.
The central seat has a guide and an inertia reel, 
which are attached to the backrest.
Each side seat is provided with a support to 
hang the belt buckle when not in use.
Fastening
►  Pull the strap, then insert the tongue in the 
buckle.
►  Check that the seat belt is fastened correctly 
by pulling the strap.
Unlocking
►  Press the red button on the buckle.
►  Guide the seat belt as it is reeled in.
Advice
The driver must ensure that passengers 
use the seat belts correctly and that they 
are all fastened before setting off.
Wherever seated in the vehicle, you must 
always fasten the seat belt, even for short 
journeys.
Do not interchange the seat belt buckles, as 
they will not fulfil their role fully.
Before and after use, ensure that the seat belt 
is reeled in correctly.
After folding or moving a seat or rear bench 
seat, ensure that the seat belt is positioned 
and reeled in correctly.
Installation
The lower part of the strap must be 
positioned as low as possible on the pelvis.
The upper part must be positioned in the 
hollow of the shoulder.
In order to be effective, a seat belt:
–  must be tightened as close to the body as 
possible;
–  must be pulled in front of you with a smooth 
movement, ensuring that it is not twisted;
–  must only be used to secure one person;
–  must not show signs of tearing or fraying;
–  must not be changed or modified, in order 
to avoid affecting its performance.
Recommendations for children
Use a suitable child seat if the passenger 
is less than 12 years old or shorter than one 
and a half metres.
Never use the same seat belt to secure more 
than one child.
Never carry a child on your lap.
For more information on  Child seats, refer to 
the corresponding section.
Maintenance
In accordance with current safety 
regulations, for all repairs on your vehicle's 
seat belts, go to a qualified workshop with 
the skills and equipment needed, which a 
CITROËN dealer is able to provide.
Have the seat belts checked regularly by a 
CITROËN dealer or a qualified workshop, 
particularly if the straps show signs of 
damage.
Clean the seat belt straps with soapy water or 
a textile cleaning product, sold by CITROËN 
dealers.   
Page 59 of 196
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    
Page 60 of 196
58
Safety
Installing a booster seat
The chest part of the seat belt must be 
positioned on the child's shoulder without 
touching the neck.
Ensure that the lap part of the seat belt 
passes correctly over the child's thighs.
Use a booster seat with backrest, equipped 
with a belt guide at shoulder level.
Additional protections
To prevent accidental opening of the 
doors and rear windows, use the "Child lock".
Take care not to open the rear windows by 
more than one third.
To protect young children from the rays of the 
sun, fit side blinds on the rear windows.
As a safety precaution, do not leave:
–  a child alone and unattended in a vehicle,
–  a child or an animal in a vehicle which is 
exposed to the sun, with the windows closed,
–  the keys within reach of children inside the 
vehicle.
Child seat at the rear 
 
time discharging the hot gas via openings 
provided for this purpose.
Front airbags
Do not drive holding the steering wheel 
by its spokes or resting your hands on the 
centre part of the wheel.
Passengers must not place their feet on the 
dashboard.
Do not smoke as deployment of the airbags 
can cause burns or the risk of injury from a 
cigarette or pipe.
Never remove or pierce the steering wheel or 
hit it violently.
Do not fix or attach anything to the steering 
wheel or dashboard, as this could cause 
injuries when the airbags are deployed.
Lateral airbags
Use only approved covers on the seats, 
compatible with the deployment of the lateral 
airbags. For information on the range of seat 
covers suitable for your vehicle, contact a 
CITROËN dealer.
Do not fix or attach anything to the seat 
backrests (clothes, etc.), as this could cause 
injuries to the thorax or arm when the lateral 
airbag is deployed.
Do not sit with the upper part of the body any 
nearer to the door than necessary.
Curtain airbags
Do not fix or attach anything to the roof, 
as this could cause head injuries when the 
curtain airbag is deployed.
Do not remove the grab handles installed on 
the roof, as they play a part in securing the 
curtain airbags.
Child seats
The regulations on carrying children are  specific to each country. Refer to the 
legislation in force in your country.
For maximum safety, please observe the 
following recommendations:
–  In accordance with European regulations,  all 
children under the age of 12 or less than 4 
ft 11” (150 cm) tall must travel in approved 
child seats suited to their weight , on seats 
fitted with a seat belt or ISOFIX mountings.
–  Statistically, the safest seats in your 
vehicle for carrying children are the rear 
seats.
–  Children weighing less than 9 kg must 
travel in the "rear facing" position, whether in 
the front or rear of the vehicle.
It is recommended that children travel 
on the rear seats  of the vehicle:
– ‘rear facing’ up to the age of 3,
– ‘forward facing’ over the age of 3.
Make sure that the seat belt is correctly 
positioned and tightened.
For child seats with a support leg, ensure that 
the support leg is in firm and steady contact 
with the floor.
Advice
An incorrectly installed child seat  compromises the child's safety in the 
event of an accident.
Ensure that there is no seat belt or seat belt 
buckle under the child seat, as this could 
destabilise it.
Remember to fasten the seat belts or the 
harness of child seats, keeping the slack 
relative to the child's body to a minimum, 
even for short journeys.
When installing a child seat using the seat 
belt, ensure that the seat belt is tightened 
correctly on the child seat and that it secures 
the child seat firmly on the seat of the vehicle. 
If the passenger seat is adjustable, move it 
forwards if necessary.
Remove the head restraint before 
installing a child seat with a backrest on a 
passenger seat.
Ensure that the head restraint is stored or 
attached securely to prevent it from being 
thrown around the vehicle in the event of 
sharp braking. Refit the head restraint once 
the child seat has been removed.   
Page 61 of 196
59
Safety
5Installing a booster seat
The chest part of the seat belt must be 
positioned on the child's shoulder without 
touching the neck.
Ensure that the lap part of the seat belt 
passes correctly over the child's thighs.
Use a booster seat with backrest, equipped 
with a belt guide at shoulder level.
Additional protections
To prevent accidental opening of the 
doors and rear windows, use the "Child lock".
Take care not to open the rear windows by 
more than one third.
To protect young children from the rays of the 
sun, fit side blinds on the rear windows.
As a safety precaution, do not leave:
–  a child alone and unattended in a vehicle,
–  a child or an animal in a vehicle which is 
exposed to the sun, with the windows closed,
–  the keys within reach of children inside the 
vehicle.
Child seat at the rear 
 
"Forward facing" or "Rearward 
facing"
 
 
 
 
►  Move the vehicle's front seat forward and 
straighten the backrest so that the legs of the 
child in the "forward facing" child seat or the 
"rearward facing" child seat itself do not touch 
the vehicle's front seat.
►  Verify that the backrest of the "forward facing" 
child seat is as close as possible to the backrest 
of the vehicle's rear seat, and is ideally in contact 
with it.
Child seat at the front 
 
►  Adjust the front passenger seat to the 
highest and intermediate longitudinal 
position , with the backrest straightened.
"Forward facing"
You must leave the front passenger 
airbag active.
"Rearward facing"
The front passenger airbag must be deactivated before installing a rearward 
facing child seat. Otherwise,  the child risks 
being seriously injured or killed if the 
airbag is deployed .
 
 
Warning label - Front passenger airbag
You must comply with the following instruction, 
reminded by the warning label on both sides of 
the passenger sun visor:
NEVER use a rearward facing child restraint 
on a seat protected by an ACTIVE AIRBAG in 
front of it, DEATH or SERIOUS INJURY to the 
CHILD can occur.