2020 CITROEN RELAY check engine light

64
Driving
Driving recommendations
► Observe the driving regulations and remain
vigilant whatever the traffic conditions.
► Monitor your environment and keep your
hands on the wheel to be able to react to
anything that may happen any time.
► Drive smoothly, anticipate the need for
braking and maintain a longer safety distance,
especially in bad weather.
► Stop the vehicle to carry out operations that
require close attention (such as adjustments).
► During long trips, take a break every two
hours.
Important!
Never leave the engine running in a
closed space without sufficient
ventilation. Internal combustion engines emit
toxic exhaust gases such as carbon
monoxide. Danger of poisoning and death!
In severe wintry conditions (temperature
below -23°C), let the engine run for 4
minutes before moving off, to ensure the
correct operation and durability of the
mechanical components of your vehicle
(engine and gearbox).
Never drive with the parking brake
applied . Risk of overheating and
damage to the braking system!
Do not park the vehicle or leave the
engine running on a flammable
surface (dry grass, dead leaves, etc.). The
exhaust system of your vehicle is very hot,
even several minutes after the engine stops.
Risk of fire!
Never leave a vehicle unattended with
the engine running. If you have to leave
your vehicle with the engine running, apply
the parking brake and put the gearbox into
neutral or position N or P (depending on the
type of gearbox).
Never leave children inside the vehicle
unsupervised.
To assure the durability of your vehicle and your safety, remember that certain precautions,
described hereafter, should be taken when
driving your vehicle :
Manoeuvre cautiously, at low speed
The dimensions of your vehicle differ from those
of a light vehicle, in width, in height, as well as in
length, and some obstacles will be more difficult
to notice.
Manoeuvre slowly.
Before turning, check that there are no obstacles
at mid-height along the sides.
Before reversing, check that there are no
obstacles, particularly at high level behind the
vehicle. Be aware of the external dimensions, if ladders
are fitted.
Load the vehicle correctly
With a load carried, the vehicle must remain
within the maximum authorised weight, the
Gross Vehicle Weight.
To avoid upsetting the balance of the vehicle,
the load should be centred and the heaviest part
placed on the floor in front of the rear wheels.
It is inadvisable to place heavy loads on a roof
rack.
Loading also implies adherence to the maximum
load of the roof bar anchor points. Adhere to
the maximum permissible weight, according to
CITROËN dealer specifications.
Loads must be securely lashed down.
A load that is not properly secured inside the
vehicle may affect vehicle handling and create a
risk of accident.
If your vehicle is fitted with a drop-side back, the
height and width of the load must remain within
the overall dimensions of the vehicle.
Drive the vehicle in a prudent and efficient
way
Take corners gently.
Anticipate the need to brake as the stopping
distance is increased, particularly on wet or icy
roads.
Be aware of the effect of side winds on the
vehicle.
Effective eco-driving saves fuel; accelerate
progressively, anticipate the need to slow down
and adapt your speed to suit the situation.
Indicate changes of direction well in advance so
that you are seen by other road users.
Take care
The tyres must be inflated to at least the
pressures indicated on the label, even over-
inflated by 0.2 to 0.3 bar for long journeys.
On flooded roads
We strongly advise against driving on flooded
roads, as this could cause serious damage to
the engine or gearbox, as well as to the electrical
systems of your vehicle.


If you are obliged to drive on a flooded road:
► check that the depth of water does not
exceed 15 cm, taking account of waves that
might be generated by other users,
► deactivate the Stop & Start function,
► drive as slowly as possible without stalling. In
all cases, do not exceed 6 mph (10 km/h),
► do not stop and do not switch off the engine.

65
Driving
6Effective eco-driving saves fuel; accelerate
progressively, anticipate the need to slow down
and adapt your speed to suit the situation.
Indicate changes of direction well in advance so
that you are seen by other road users.
Take care
The tyres must be inflated to at least the
pressures indicated on the label, even over-
inflated by 0.2 to 0.3 bar for long journeys.
On flooded roads
We strongly advise against driving on flooded
roads, as this could cause serious damage to
the engine or gearbox, as well as to the electrical
systems of your vehicle.


If you are obliged to drive on a flooded road:
► check that the depth of water does not
exceed 15 cm, taking account of waves that
might be generated by other users,
► deactivate the Stop & Start function,
► drive as slowly as possible without stalling. In
all cases, do not exceed 6 mph (10 km/h),
► do not stop and do not switch off the engine.
On leaving the flooded road, as soon as safety
conditions allow, make several light brake
applications to dry the brake discs and pads.
If in doubt about the state of your vehicle,
contact a CITROËN dealer or a qualified
workshop.
In case of towing
Driving with a trailer places greater
demands on the towing vehicle and
requires extra care from the driver.
Respect the maximum towable weights.
At altitude: reduce the maximum load by
10% per 1,000 metres of altitude; the density
of the air decreases with altitude and the
performance of the engine reduces.
New vehicle: do not pull a trailer before
having driven at least 620 miles (1,000
kilometres).
If the outside temperature is high, let the
engine idle for 1 to 2 minutes after the
vehicle comes to a stop, to help it to cool.
Before setting off
Nose weight
► Distribute the load in the trailer so that the
heaviest items are as close as possible to the
axle and the nose weight (at the point where it
joins your vehicle) approaches the maximum
permitted without exceeding it.
Tyres
► Check the tyre pressures of the towing
vehicle and of the trailer, observing the
recommended pressures.
Lighting
► Check the electrical signalling on the trailer
and the headlamp beam height of your vehicle.
If a genuine CITROËN towing device is
used, the rear parking sensors will be
deactivated automatically to avoid the audible
signal.
When driving
Cooling
Towing a trailer uphill increases the temperature
of the coolant. The maximum towable load
depends on the gradient and the exterior
temperature. The cooling capacity of the fan
does not increase with engine speed.
► Reduce speed and lower the engine speed,
so as to limit the heating-up.
In all cases, pay attention to the coolant
temperature.
If this warning lamp and the STOP
warning lamp come on, stop the vehicle
and switch off the engine as soon as possible.

67
Driving
6Starting-switching off the
engine
Ignition switch

STOP position: Anti-theft.
The ignition is off.
MAR position: ignition on.
Certain accessories can be used.
AV V position: starter.
The starter is operated.
Avoid attaching heavy objects to the key or the remote control, which would weigh
down on its blade in the ignition switch and
could cause a malfunction.
Starting the engine
► With the parking brake applied and the
gearbox in neutral, turn the key to the MAR
position.
► Wait until this warning lamp goes out,
then operate the starter (AV V position)
until the engine starts.
The period of illumination of the warning lamp
depends on the climatic conditions.
When the engine is hot, the warning lamp lights
up for a few moments; you can start the engine
immediately.
► When the engine starts, release the key.
Immobiliser warning lamp
If this warning lamp lights up, change key
and have the faulty key checked by a CITROËN
dealer.
Switching off the engine
► Immobilise the vehicle.
► Move the key back to the STOP position.
In low temperatures
In mountainous and/or cold areas, it is
advisable to use a "winter" type fuel suited to
low or minus temperatures.
Battery standby system
If your vehicle is to be out of use for an extended
period of time, such as during winter storage for
example, it is strongly recommended to put the battery in standby mode in order to protect it and
optimise its life.


To put the battery in standby mode:
► Switch the engine off ( STOP position).


► Press the red button, then turn the key to the
BATT position.
The battery goes into standby mode
approximately 7 minutes later.
This time is necessary to:
– allow the user to leave the vehicle and lock the
doors using the remote control.
– ensure that all vehicle electrical systems are
deactivated.

68
Driving
When the battery is in standby mode,
access to the vehicle is only possible by
unlocking the mechanical lock on the driver's
side door.
After a battery standby, the information (time, date, radio stations, etc.) is
memorised.
To remove the battery from standby mode:
► Turn the key to the MAR - ON position.
► Start the vehicle normally ( AV V position).
Parking brake
Application
► Apply the parking brake to immobilise the
vehicle.
► Check that the parking brake is correctly
applied before leaving the vehicle.
Apply the parking brake only when the
vehicle is stationary.
When parking on a slope, turn your
wheels towards the kerb 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.
In the event of a failure of the
hydraulic braking system
While driving , to avoid any accidental
movement of the vehicle, use the parking
brake while depressing the brake pedal.
In this exceptional circumstance, it is
advisable to pull the parking brake up gently
so as not to block the rear wheels - risk of
skidding!
Release

► Pull the lever up gently and press the button
to release the parking brake.
When the vehicle is being driven, this
warning lamp coming on indicates that
the parking brake is still applied or has not been
fully released.
Manual gearbox
To change gear easily, always fully depress the
clutch pedal.
To prevent the mat from becoming caught under
the pedal:
– ensure that the mat is positioned correctly,
– never fit one mat on top of another.
Avoid leaving your hand on the gear knob as
the force exerted, even if slight, may wear the
internal components of the gearbox over time.
Engaging reverse gear

► Lift the ring under the knob to engage reverse
gear.
Never engage it until the vehicle has
come to a complete stop.
The movement must be done slowly to reduce
the noise when engaging reverse gear.
If fitted to the vehicle, the parking
sensors are activated when reverse gear
is engaged; an audible signal sounds.
For more information on the Parking
sensors, refer to the corresponding section.
Gear shift indicator
Depending on version or engine, this system
reduces fuel consumption by recommending a
higher gear change.
Gear shift recommendations should not be
considered compulsory. In fact, the road layout,
the traffic density and safety remain the deciding
factors when choosing the best gear. The driver
therefore remains responsible for deciding
whether or not to follow the indications issued by
the system.
The system cannot be deactivated.
Operation
The information appears in the instrument panel screen in the form of the SHIFT
indicator, accompanied by an upward arrow to
signal to the driver that they can change up.
The system adapts its gear shift recommendation according to the driving
conditions (slope, load, etc.) and the driver’s
requirements (power, acceleration, braking,
etc.).
The system never recommends engaging first
gear or reverse, or changing down.
Stop & Start
The Stop & Start function puts the engine temporarily into standby - STOP mode - during
phases when the vehicle is stopped (red lights,

71
Driving
6This system (also called HHC - Hill Hold
Control), integrated with the dynamic stability
control system, is activated in the following
conditions:
– the vehicle must be stationary, engine running,
foot on the brake,
– the gradient of the road must be steeper than
5%,
– uphill, the gearbox must be in neutral or in a
gear other than reverse,
– downhill, reverse gear must be engaged.
The hill start assist system is a driving
aid. It is not an automatic vehicle parking
function or an automatic parking brake.
Operation

With the brake pedal and clutch pedal pressed,
from the time you release the brake pedal,
without using the parking brake, you have
approximately 2 seconds to move off before the
vehicle starts to roll back.
During the moving off phase, the function is
deactivated automatically, gradually releasing
the braking pressure. During this phase, you
may hear the typical mechanical brake release
noise, signalling the imminent movement of the
vehicle.
Do not leave the vehicle while it is being
held temporarily by hill start assist.
If you need to get out of the vehicle with
the engine running, apply the parking brake
manually then ensure that the parking brake
indicator lamp is on.
Hill start assist is deactivated in the following
situations:
– when the clutch pedal is released,
– when the parking brake is applied,
– when the engine is switched off,
– if the engine stalls.
Malfunction
If a malfunction of the system occurs, this
warning lamp lights up, accompanied by
an audible signal and confirmed by a message
on the display. Have the system checked by a
CITROËN dealer or a qualified workshop.
Tyre under-inflation detection
System which automatically checks the
pressures of the tyres while driving.
The system continuously monitors the pressures
of the four tyres, as soon as the vehicle is
moving.
A pressure sensor is located in the valve of each
tyre (except the spare wheel).
The system triggers an alert as soon as it
detects a drop in the inflation pressure of one or
more tyres.
The under-inflation detection system does not replace the need for vigilance
on the part of the driver.
This system does not avoid the need to
regularly check the tyre pressures (including
the spare wheel) as well as before a long
journey.
Driving with under-inflated tyres, particularly
in adverse conditions (heavy load, high
speed, long journey):
– worsens road-holding,
– lengthens braking distances,
– causes premature wear of the tyres,
– increases fuel consumption.

84
Driving
– Auto: for an automatic detection of the trailer
length (3 m, 6 m or 9 m).
In Auto mode, an icon appears in the instrument
panel indicating the length detected by the
system.
It may be necessary to make a 90° turn
to allow the system to detect the length
of the trailer.
When a trailer is detected, vehicle detection
when reversing is deactivated.
Operating conditions
– All vehicles are moving in the same direction
and in adjacent lanes.
– The speed of your vehicle is 6 mph (10 km/h)
minimum.
– When you overtake a vehicle, the speed
difference is less than 16 mph (25 km/h).
– When another vehicle overtakes you, the
speed difference is less than 31 mph (50 km/h).
Active Safety Brake with Collision Risk Alert and
Intelligent emergency
braking assistance
Refer to the General recommendations on the
use of driving and manoeuvring aids .


This system:
– warns the driver that their vehicle is at risk of
collision with the vehicle in front.
– reduces the vehicle's speed to avoid a
collision or limit its severity.
This system is comprised of three functions:
– Collision Risk Alert.
– Intelligent emergency braking assistance.
– Active Safety Brake (automatic emergency
braking).


The vehicle has a camera located at the top of
the windscreen.
This system does not avoid the need for vigilance on the part of the driver.
This system is designed to assist the driver
and improve road safety.
It is the driver's responsibility to continuously
monitor the state of the traffic, observing the
driving regulations.
As soon as the system detects a potential obstacle, it prepares the braking
circuit in case automatic braking is needed.
This may cause a slight noise and a slight
sensation of deceleration.
Deactivation / Activation
By default, the system is automatically activated
at every engine start.
This function can be set using the MODE button; select “ON” or “OFF” in the “Active
Safety Brake” menu.
For more information on Vehicle
configuration (MODE) , please refer to
the corresponding section.
Deactivation of the system is signalled by
the illumination of this warning lamp,
accompanied by the display of a message.
Operating conditions and
limits
The ESC system must not be faulty.
The DSC/ASR systems must not be deactivated.
All passenger seat belts must be fastened.
Driving at a steady speed on roads with few
bends is required.
In the following cases, deactivating the system
via the vehicle's configuration menu is advised:
– towing a trailer,
– carrying long objects on roof bars or roof rack,
– with snow chains fitted,
– before using an automatic car wash, with the
engine running,
– before placing the vehicle on a rolling road in
a workshop,
– towed vehicle, engine running,
– following an impact to the windscreen close to
the detection camera.
It is automatically deactivated after
detection of a fault with the brake pedal
switch or with at least two brake lamps.
After an impact, the function automatically stops operating. Contact a
CITROËN dealer or a qualified workshop to
have the system checked.
It is possible that warnings are not given,
are given too late or seem unjustified.
The driver must always stay in control of their
vehicle and be prepared to react at any time
to avoid an accident.
Cases of non-detection by the system:
– Pedestrians, cyclists, animals, objects on the
road.
– Vehicles crossing your lane.
– Vehicles driving in the opposite direction.

86
Driving
The message "Vehicle close" is displayed.Level 2 (red): visual and audible alert,
signalling that a collision is imminent.
The message "Brake! " is displayed.
Level 3: finally, in some cases, a haptic alert
in the form of micro-braking can be given,
confirming the risk of collision.
Where the speed of your vehicle is too
high approaching another vehicle, the
first level of alert may not be displayed: the
level 2 alert may be displayed directly.
Important: the level 1 alert is never displayed
for a stationary obstacle or when the " Close"
trigger threshold has been selected.
Intelligent emergency
braking assistance
If the driver brakes, but not sufficiently to avoid a
collision, this system will supplement the braking,
within the limits of the laws of physics.
This assistance will only be provided if the driver
presses the brake pedal.
Active Safety Brake

This function, also called automatic emergency
braking, intervenes following the alerts if the
driver does not react quickly enough and does
not operate the vehicle's brakes.
It aims to reduce the speed of impact or avoid a
collision where the driver fails to react.
Operation
The system operates under the following
conditions:
– The vehicle's speed does not exceed 50 mph
(80 km/h) when a stationary vehicle is detected.
– The vehicle's speed is between 3 mph and
53 mph (5 km/h and 85 km/h) when a moving
vehicle is detected.
This warning lamp flashes (for about 10 seconds) once the function is acting
on the vehicle's brakes.
With a manual gearbox, in the event of automatic
emergency braking until the vehicle comes to a
complete stop, the engine may stall.
The driver can maintain control of the vehicle at any time by sharply turning the
steering wheel and/or pressing the
accelerator pedal.
Operation of the function may be felt by
slight vibration in the brake pedal.
If the vehicle comes to a complete stop, the
automatic braking is maintained for 1 to 2
seconds.
Malfunction
In the event of a system malfunction, this
warning lamp comes on on the instrument
panel, accompanied by an onscreen message
and an audible signal.
Contact a CITROËN dealer or a qualified
workshop to have the system checked.
If these warning lamps come on
after the engine has been switched
off and then restarted, contact a CITROËN
dealer or a qualified workshop to have the
system checked.
Audible rear parking sensors
Refer to the General recommendations on the
use of driving and manoeuvring aids .


If fitted to your vehicle, the system consists of 4
proximity sensors installed in the rear bumper.
They detect any obstacle, e.g. person, vehicle,
tree, barrier, which is behind the vehicle while
manoeuvring.
Certain types of obstacle detected at the
beginning of the manoeuvre will no longer be
detected at the end of manoeuvre if they are
located in the blind spots between and under the
sensors. Examples: stake, roadworks cone or
pavement post.
The rear parking sensors may be associated
with the reversing camera.
Switching on
► Engage reverse gear with the gear lever.

121
In the event of a breakdown
8

► Tilt lever 1 downwards to release the
terminals.
► Remove terminals 2 from the negative (-)
terminal.
Wait approximately 6 minutes after
switching off the ignition before
disconnecting the battery.
Do not disconnect the terminals while the
engine is running.
Do not charge a battery without disconnecting
the terminals first.
Close the windows and the doors before
disconnecting the battery.
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting the
engine, to enable the electronic systems to
initialise. If minor problems nevertheless persist
following this operation, contact a CITROËN
dealer or a qualified workshop.
It is recommended to disconnect the (-)
terminal of the battery if the vehicle is to
be left unused for more than one month.
The description of the battery charging
procedure is only indicative.
After prolonged battery disconnection, it may be
necessary to reinitialise the following functions:
– the display parameters (date, time, language,
distance and temperature units),
– the stations of the audio system,
– the central locking.
Some settings are cancelled and must be
entered once again; contact a CITROËN dealer.
If the vehicle is equipped with a tachograph or
an alarm, it is recommended that the (-) terminal
of the battery (located under the floor on the
left-hand side, in the cab) be disconnected if the
vehicle is not going to be used for more than 5
days.
Starting using another
battery
Never start the engine by connecting a
battery charger.
Never use a 24 V or higher battery booster.
Check beforehand that the backup battery
has a nominal voltage of 12 V and a capacity
at least equal to that of the discharged
battery.
The two vehicles must not be in contact with
each other.
Switch off all the electrical consumers on both
vehicles (audio system, wipers, lighting, etc.).
Make sure that the jump leads are not close
to the moving parts of the engine (fan, belt,
etc.).
Do not disconnect the (+) terminal while the
engine is running.


A. Positive metallic terminal of your vehicle
B. Backup battery
C. Earth of your vehicle
The positive metallic terminal A is accessible
through a flap located on the side of the fuse
box.
Connect only to the terminals indicated
and illustrated above. In case of
non-compliance, risk of short circuit!