temperature CITROEN RELAY 2020 Handbook (in English)

35
Ease of use and comfort
3Additional pre-heater or programmable additional
heating
This is an additional, programmable and
independent system that heats the hot water
loop of the Diesel engine to facilitate starting.
It improves the performance of the defrosting
and demisting and, if fitted to the vehicle, that of
the heated seats.
The passenger compartment’s temperature rises
more quickly.
This system must be programmed to be started
before entering the vehicle.
Automatic additional heating
This is an additional system that starts
automatically when the ignition is switched on. Its
activation depends on the outside temperature
and the temperature inside the vehicle.
It switches off automatically as soon as the
heating is manually switched on.
Supplementary heating
On 2-3 seat versions, it is located under the
driver's seat with air diffusion directed towards
the front.
On 5-9 seat versions, it is
located at the rear. Depending
on the version of the model, the
air diffusion is either direct from
the rear, or comes from the rail
located under each of the two
rows of seats.
► Press this control to activate/
deactivate the heating. The LED lights up
if heating is activated.
When quickly defrosting and demisting, turn off
the control.
Rear heating and/or air
conditioning






If the vehicle is equipped with an additional
air conditioning unit, located at the rear of the
vehicle: the distribution rail located in the roof
and the individualised air vents ensure a perfect
diffusion of cold air.
The hot air diffused from the front air conditioning
unit to the floor is distributed at the height of the
rear passengers' feet in rows 2 and 3.
A hot air vent, located on the left-hand rear
wheel arch, may complement the system for the
rear passengers’ feet in row 3.
Activation/Deactivation
► From the driver's seat, press this
button located on the MODE control panel
to activate the operation of the rear controls. The
indicator lamp comes on.
Pressing again on this button deactivates the
operation of the rear controls. The indicator lamp
goes off.

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.

46
Lighting and visibility
Lighting control stalk
In some weather conditions (e.g. low
temperature or humidity), the presence
of misting on the internal surface of the glass
of the headlamps and rear lamps is normal; it
disappears after the lamps have been on for a
few minutes.
Travelling abroad
If using your vehicle in a country that
drives on the other side of the road, the
headlamps must be adjusted to avoid
dazzling on-coming drivers.
Contact a CITROËN dealer or a qualified
workshop.
Selection of main lighting
mode


► Turn the lighting control stalk to place the
white mark opposite the desired symbol.
Lighting off (ignition off) / Daytime running
lamps (engine running)
Dipped beam headlamps / Main beam
headlamps
Automatic lighting of dipped beam headlamps / main beam headlamps
Switching the headlamps
(dipped beam/main beam)
► Pull the lighting control stalk towards you to
switch between the lighting of the dipped beam
headlamps and main beam headlamps.
To flash the headlamps, pull the control stalk
towards you, regardless of the position of the
ring.
Direction indicators
► Left or right: lower or raise the lighting control
stalk, beyond the point of resistance.
"Motorway" function
► Press briefly upwards or downwards, without
going beyond the point of resistance; the
direction indicators will flash five times.
Foglamps
If the vehicle is equipped with foglamps, they
operate with the dipped bean headlamps or main
beam headlamps.


Front foglamps
Rear foglamps
► Press one of these controls to turn on the
corresponding lamps.
Foglamps should only be used in fog or
falling snow.
In clear or rainy weather, both day and
night, rear foglamps dazzle and their use is
prohibited.
Do not forget to switch them off when they are
no longer necessary.
LED daytime running
lamps
On starting the vehicle, in daylight, the daytime
running lamps come on automatically.
If the sidelamps and headlamps are switched on
manually or automatically, the daytime running
lamps switch off.
Programming
For countries where exterior lighting by day is
not a legal requirement, you can activate or
deactivate the function via the configuration
menu.
Automatic illumination of headlamps
If your vehicle is fitted with this function, the
dipped beam headlamps are switched on
automatically if the light is poor.
In fog or snow, the sunshine sensor may
detect sufficient light. In this case, the
lighting will not come on automatically. If
necessary, you must switch on the dipped
beam headlamps manually.
They are switched off when the light returns
to a sufficient level.
Do not cover the sunshine sensor at the top
centre of the windscreen.
You can adjust the sensitivity of the sunshine sensor.
For more information on Vehicle
configuration , refer to the corresponding
section.
Activation
► Turn the ring to this position.
The lamps go out automatically when the ignition
is switched off.

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.

70
Driving
Never leave the vehicle without first
switching the ignition off with the key.
Never refuel with the engine in STOP
mode; you must switch off the ignition
using the key.
Special cases: STOP mode
not available
STOP mode is not activated when:
– the system is initialising,
– the driver's door is open,
– the driver's seat belt is not fastened,
– the air conditioning is on,
– the rear screen demisting is on,
– the windscreen wipers are on fast wipe,
– the reverse gear is engaged for the parking
manoeuvre,
– some special conditions (battery charge,
engine temperature, particle filter regeneration,
braking assistance, exterior temperature, etc.)
where the engine is needed to assure control of
a system.
– during intensive use of Stop & Start, it may
be deactivated to conserve starting ability;
go to a CITROËN dealer to have the function
reactivated.
This indicator lamp in the instrument panel flashes for a few seconds, then
goes off.
This operation is perfectly normal.
Going into engine START
mode
With a gear engaged, the automatic restarting of
the engine is only possible by fully depressing
the clutch pedal.
This indicator lamp goes off and the engine restarts.
If, after an automatic restart in START mode, the
driver does not perform any action on the vehicle
within 3 minutes, the system stops the engine
permanently. The engine can only be restarted
with the ignition key.
Special cases: START mode
activated automatically
The START mode may be invoked automatically
in the following circumstances:
– the vehicle is free-wheeling on a gradient,
– the windscreen wipers are on fast wipe,
– the air conditioning is on,
– the engine has been stopped for around 3
minutes with Stop & Start,
– some special conditions (battery charge,
engine temperature, braking assistance, air
conditioning setting, etc.) where the engine is
needed for control of the system or vehicle.
In this case, a message appears in the
instrument panel screen, accompanied by
this indicator lamp, which flashes for a few
seconds, then goes off.
This operation is perfectly normal.
While in STOP mode with a manual
gearbox, if a gear is engaged without
fully depressing the clutch pedal, restarting
may not take place.
An indicator lamp and/or message is
displayed in the instrument panel asking
you to fully depress the clutch pedal to allow
restarting.
With the engine stopped in STOP mode,
if the driver unfastens their seat belt and
opens a front door, the engine can only be
restarted using the ignition key. There is an
audible signal, accompanied by flashing of this
indicator lamp, and the display of a message.
Malfunction
In the event of a malfunction, the Stop &
Start is deactivated and this warning lamp
comes on, accompanied by a message on the
instrument panel display.
Have the system checked by a CITROËN dealer
or a qualified workshop.
In the event of a malfunction in STOP mode, the
engine can be restarted by fully depressing the
clutch pedal or putting the gear lever in neutral.
Hill start assist
This system keeps your vehicle briefly stationary
(for approximately 2 seconds) when making a hill
start, while you transfer your foot from the brake
pedal to the accelerator pedal.
This 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,

73
Driving
6Loading sill height manual
correction
Adjusting the platform sill up or down
► A quick press on one of the controls selects
the upper or lower level. Each press (diode lit)
increases or decreases by one level.
A long press on one of the controls selects the
maximum corresponding level (-3 or +3).
Returning to the normal sill height
► Press the same number of times in the
opposite direction of the displayed position.
Deactivation/Reactivation
► Press and hold both controls simultaneously
to deactivate/reactivate the system.
Deactivation is confirmed by the lighting of the
control LEDs.
Beyond a speed of 3 mph (5 km/h), the
system reactivates automatically.
Loading sill height
automatic correction
Beyond a speed of 12 mph (20 km/h), the
system automatically restores the rear sill height
to its normal level.
Malfunction
If a fault occurs with the system, this
warning lamp comes on.
Have the system checked by a CITROËN dealer
or a qualified workshop.
Driving with the suspension set too high
or too low poses risk of damaging
components under the body.
The height may be adjusted automatically to
take account of changes in 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, etc.
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.
Driving and manoeuvring
aids - General
recommendations
Driving and manoeuvring aids cannot, in
any circumstances, replace the need for
vigilance on the part of the driver.
The driver must comply with the Highway
Code, must remain in control of the vehicle in
all circumstances and must be able to retake
control of it at all times. The driver must adapt
the speed to climactic conditions, traffic and
the state of the road.
It is the driver's responsibility to constantly
check the traffic, to assess the relative
distances and speeds of other vehicles and to
anticipate their movements before indicating
and changing lane.
The systems cannot exceed the limits of the
laws of physics.
Driving aids
You should hold the steering wheel
with both hands, always use the interior and
exterior rear view mirrors, always keep the
feet close to the pedals and take a break
every two hours.
Manoeuvring aids
The driver must always check the
surroundings of the vehicle before and during

76
Driving
simultaneously in the two dedicated areas of the
instrument panel.
If an additional road sign is detected, such
as a reduced speed limit for wet road sign, it
is displayed in an empty window below the
corresponding sign.
Additional signs are filtered as follows:
– Signs for snow or ice only appear if the
outside temperature is below 3°C.
– Signs for snow, rain or fog are only displayed
if the wipers are activated while the outside
temperature is below 3°C.
– Signs concerning heavy goods vehicles are
not displayed if they concern a vehicle weighing
less than 4 tonnes.
– Signs concerning farm equipment are not
displayed.
Signs such as no overtaking go out after about
40 seconds on the instrument panel.
Activation/Deactivation
This function can be set using the MODE button: in the “Traffic Sign” menu, select
“ON” or “OFF”.
For more information on Vehicle
configuration (MODE) , refer to the
corresponding section.
Operating limits
The system does not take account of reduced
speed limits, especially those imposed in the
following cases:
– Poor weather (rain, snow).
– Atmospheric pollution.
– Towing.
– Driving with a space-saver type spare wheel
or snow chains fitted.
– Driving with a non-standard suspension kit.
– Tyre repaired using the temporary puncture
repair kit.
– Young drivers.
The system may not display the speed limit if it
does not detect a speed limit sign within a preset
period and in the following situations:
– Road signs that are obstructed, non-standard,
damaged or bent.
– Obsolete or incorrect maps.
– Road incline causing the sign to be out of the
camera field of vision (on a slope, for example).
– Change in the vehicle load that causes the
camera to tilt significantly (system operation may
temporarily be suspended to enable camera
self-calibration).
Speed limiter
Refer to the General recommendations on the
use of driving and manoeuvring aids .
System which prevents the vehicle
from exceeding the speed
programmed by the driver. The speed is selected when the vehicle is
stationary with the engine running or while
driving with at least 2
nd gear engaged.
The minimum speed to be programmed is 19
mph (30 km/h).
The vehicle responds to the driver's foot
pressure on the accelerator until resistance is felt
in the pedal, which signifies that the vehicle has
reached the programmed speed.
However, depressing the pedal beyond this point
of resistance to the floor allows you to exceed
the programmed speed. To resume use of the
speed limiter, gradually release the pressure
on the accelerator pedal and return below the
programmed speed.


1. Selection of the speed limiter function
2. Activation / deactivation of the function
3. Programming a speed
The selection status of the function and the
programmed speed are visible in the instrument
panel display screen.
Selecting the function
► Turn ring 1 all the way down. The speed
limiter is selected, but is not yet active.


The display indicates OFF and the last
programmed speed.
Programming a speed
A speed can be programmed without activating
the speed limiter but with the engine running.
To memorise a speed higher than the previous
one:
► Move the control upwards (+).
A short press increases the setting by 1 mph
(km/h).
Pressing and holding increases the setting in
steps of 5 mph (km/h).
To memorise a speed lower than the previous
one:
► Move the control downwards (-).
A short press decreases the setting by 1 mph
(km/h).
Pressing and holding decreases the setting in
steps of 5 mph (km/h).
Activation/Deactivation
► Press button 2 to activate the speed limiter.

90
Practical information
For other versions, the second button is
replaced by a fuse; contact a CITROËN
dealer or a qualified workshop.
Compatibility of fuels
Diesel fuels conforming to the EN590, EN16734
and EN16709 standards and containing up to
7%, 10%, 20% and 30% fatty acid methyl ester
respectively. The use of B20 or B30 fuels, even
occasionally, imposes special maintenance
conditions referred to as "Arduous conditions".

Paraffinic Diesel fuel conforming to the EN15940
standard.
The use of any other type of (bio) fuel (vegetable or animal oils, pure or diluted,
domestic fuel, etc.) is strictly prohibited (risk
of damage to the engine and fuel system).
The only Diesel fuel additives authorised for use are those that meet the B715000
standard.
Diesel at low temperature
At temperatures below 0 °C (+32 °F), the
formation of paraffins in summer-type Diesel
Fuel
The capacity of the tank is about 90 litres.
Fuel tanks of different capacities may be fitted,
60 and 120 litres, depending on the engine.
Low fuel level
When the low fuel tank level E (Empty) is
reached, this warning lamp comes on.
At this moment, you have approximately 10 or
12 litres left in the reserve, depending on the
capacity of your tank and the engine.
You must refuel as soon as possible to avoid
running out of fuel.
Refuelling
The fuel tank must be filled with the engine off.
► Open the fuel filler flap.
► Hold the black filler cap with one hand.
► With the other hand, insert the key and turn it
anti-clockwise.


► Remove the black filler cap and hang it on
the hook located on the inside of the filler flap.
A label inside the fuel filler flap indicates the type
of fuel to use.
Do not continue past the 3
rd cut-off of the nozzle.
This may cause malfunctions.
► After filling the fuel tank, lock the black filler
cap and close the filler flap.
With the Stop & Start system, never
refuel with the engine in STOP mode;
you must switch off the ignition using the key.
Fuel system cut off
In the event of an impact, a device automatically
cuts off the fuel supply to the engine and the
vehicle's power supply.
It triggers the hazard warning lamps and the
courtesy lamps, as well as the unlocking of the
doors.
After the impact and before restoring these power supplies, check that there
are no fuel leaks or sparks to avoid any risk of
fire.


► To restore the fuel supply, press the first
button, located on the front right-hand side.


► To then restore the power supply, press
the second button, located in the battery
compartment under the floor (Minibus).