2021 CITROEN C4 AIRCROSS warning

83
4. Exterior air intake / Recirculation of interior air
F Press button 4 to select the air
entry mode.
This function allows the passenger
compartment to be isolated from exterior
odours and smoke.
When the warning lamp in button
4 is off, the
intake of exterior air is active.
When the warning lamp in button
4 is on, the
intake of exterior air is deactivated, and you are
in air recirculation.
Do not drive for long with interior air
recirculation, except in truly exceptional
atmospheric conditions. The air conditioning is designed to operate
effectively in all seasons, with the windows closed.
It enables you to:
-

l
ower the temperature, in summer,
-

i
ncrease the effectiveness of the demisting
in winter, above 3 °C.
5. Air conditioning On / Off
Switching on
Switching off
F Press button 5 again, the lamp in the button goes off.
Switching off may affect comfort levels
(humidity, condensation). If your vehicle is not fitted with air
conditioning, the button is not active.
F
P
ress button 5
, the lamp in the
button comes on.
3
Comfort

98
Starting - stopping the engine with the key
- Position 1: LOCK The steering is locked.
-

P
osition 2: ACC
T

he accessories (radio, 12 V socket...) can
be used.
-

P
osition 3: ON
I

gnition on.
-

P
osition 4: S TA R T
S

tarting the engine.
Ignition switch
If you use the accessories for a
prolonged period (with the key in
position 2 (ACC) ), you risk discharging
the battery. Starting your vehicle will
then no longer be possible. Be aware .
See the "Automatic power cut-off to
accessories" section.
Key in ignition
A buzzer sounds on opening the
driver's door, if the key has been left in
the ignition.
F

I

nsert the key in the ignition switch.
F

T

urn the key to position
2 (ACC) and unlock
the steering column, by turning wheel
s li g ht l y.
F

P

ress and hold the brake pedal.
F

F

ully depress the clutch pedal (vehicles
fitted with a manual gearbox).
F

P

ut the gear lever into neutral (vehicles
fitted with a manual gearbox), or in
position


P (vehicles fitted with a CVT
gearbox).
F

O

perate the starter by turning the key to
position 4 (S TA R T ) .
F

O

nce the engine is running, release
the

key.
T

he key returns automatically to
position


3


(ON)
.
Starting using the key Stopping
F Immobilise the vehicle.
F
P ut the gear lever into neutral (vehicles
fitted with a manual gearbox), or in
position


P (vehicles fitted with a CVT
gearbox).
F

W
hile pressing the key, turn it to
position


1 (LOCK).
F

R
emove the key from the ignition switch.
F

L
ock the steering.Do not attach any heavy objects to the
key as this could weigh down on it when
in the ignition switch and cause a fault.
For Diesel vehicles, when the engine
is cold wait with the ignition switch
in position 3 (ON) until the preheater
warning lamp goes off, before turning
the key to position 4 (S TA R T ) .
The warning lamp does not come on
when the engine is hot. Switching off the engine leads to a loss
of braking assistance.
Driving

99
Changing the mode of
the vehicle
With the electronic key inside the vehicle; each
press on the "START/STOP " button, with no
action on the pedals , changes the vehicle's
mode:
F

F
irst press (ACC mode), the button's
warning lamp comes on in orange.
T

he accessories (radio, 12V socket...) can
be used.
F

S
econd press (ON mode), the button's
warning lamp comes on in green.
S

witching on the ignition.
F

T
hird press (OFF mode), the warning lamp
in the button goes off. If you use the accessories for a
prolonged period with the ignition
switch in position 2 (ACC)
, you risk
discharging the battery. Starting your
vehicle will then no longer be possible.
Ta k e c a r e .
See the "Automatic power cut-off to
accessories" section.
Starting - stopping the engine with the Keyless Entry and
Starting system
If the warning lamp flashes orange,
contact a CITROËN dealer or a
qualified workshop as soon as possible.
F

P
ress and release the "S TA R T/
STOP " button.
F

W
ith the electronic key inside the vehicle,
depress the clutch pedal fully on vehicles
with a manual gearbox or press the brake
pedal on vehicles with a CVT gearbox.
Starting using the
electronic key
For vehicles fitted with a manual gearbox, put
the gear lever in neutral.
For vehicles fitted with a
CVT gearbox, put the
gear lever in P .
4
Driving

100
For diesel vehicles, when
the engine is cold starting
does not take place until the
pre-heater warning lamp has
gone off.
If one of the starting conditions is not
met, a reminder message appears in
the instrument panel screen. In some
circumstances, it is necessary to
turn the steering wheel slightly while
pressing the "
START/STOP " button
to assist unlocking of the steering;
a message warns you when this is
needed.
The presence of the electronic key
in the defined zone is essential. For
reasons of safety, do not leave this area
when the engine is running.
Switching off using the
electronic key
If the vehicle is not immobilised, the
engine will not stop.
This message is displayed
when the driver's door is
opened and the vehicle is not
in "OFF" mode.
F

P

ress the " START/STOP " button again to
change to "OFF" mode.
F

I

mmobilise the vehicle.
F

P

lace the gear lever in neutral for vehicles
fitted with a manual gearbox, or on P for
vehicles fitted with a CVT gearbox.
F

W

ith the electronic key inside the vehicle,
press the " START/STOP " button.
The engine stops.
The steering locks when a door is opened or on
locking the vehicle.
Each attempt at starting takes around
15 seconds. If the engine does not start, press
the "
START/STOP " button once more to try
again.
The presence of the electronic key in
the vehicle is essential for switching
on the ignition and starting only. Once
the engine has started,
make sure
that the electronic key remains with
the vehicle until the end of the journey:
other wise you would not be able to lock
the vehicle.
Switching off the engine leads to a loss
of braking assistance.
driving

110
Hill start assist
System which keeps your vehicle immobilised
temporarily (approximately 2 seconds) when
starting on a gradient, the time it takes to
move your foot from the brake pedal to the
accelerator pedal.
This function is only active when:
-
t
he vehicle is completely stationary, with
your foot on the brake pedal,
-

w
hen certain conditions of gradient
are met,
-

w
ith the driver’s door closed.
The hill start assist function cannot be
deactivated.
On an ascending slope, with the vehicle
stationar y, the vehicle is held for a brief
moment when you release the brake pedal:
-

i
f you are in first gear or neutral with a
manual gearbox,
-

i
f you are in position D with the CVT
gearbox.Operation
On a descending slope, with the vehicle
stationary and reverse gear engaged, the
vehicle is held for a brief moment when you
release the brake pedal.
Do not leave the vehicle while it is being
held in the hill start assist phase.
If you need to leave the vehicle while
the engine is running, apply the parking
brake.
Operating fault
If a fault occurs with the system, this warning
lamp comes on, accompanied by a message
in the instrument panel screen. Contact a
CITROËN dealer or a qualified workshop to
have the system checked.
When the engine is not running,
including periods on standby with
the Stop & Start (AS&G) system, the
function is not operative.
driving

111
Stop & Start (auto Stop & Go) function
Operation
Going into engine STOP mode
The "AS &G" warning lamp comes on in
the instrument panel or the instrument
panel screen and the engine goes into
standby after a few seconds:
-

w

ith a manual gearbox , with the vehicle
stationary and your foot on the brake, when
you put the gear lever into neutral and
release the clutch pedal.
Never refuel with the engine in STOP
mode; you must switch off the ignition
with the key or the START/STOP
button. When the engine is stopped
automatically, the operation of certain
vehicle systems, such as for example,
braking, power steering... are modified.
Ta k e c a r e.
Special cases: STOP mode not
available
STOP mode is not invoked when:
-
t he driver's seat belt is not fastened,
-

t
he driver's door is open,
-

t
he bonnet is open,
-

t
he minimum time period of 30 seconds
since starting the engine has not elapsed,
-

t
he vehicle has not exceeded 3 mph
(5
km/h) since the last engine start,
-

t
he vehicle has restarted less than
10
seconds ago,
-

t
he engine is needed to maintain a
comfortable temperature in the passenger
compartment,
-

d
emisting is active,
-

s
ome special conditions (battery charge,
engine temperature, braking assistance,
ambient temperature...) where the engine is
needed to assure control of a system.
-

t
he "AS &G" warning lamp is
flashing in the instrument panel.
This operation is perfectly normal.
The Stop & Start (Auto Stop & Go) function puts the engine temporarily into standby during stops in the traffic (red lights, traffic jams, or other...).
The

engine restarts automatically as soon as you want to move off. The restart takes place instantly, quickly and silently.
Per fect for urban use, the Stop & Start (Auto Stop & Go) function reduces fuel consumption and exhaust emissions as well as the noise level when
stationary.
If you move the gear lever, the "AS &G"
warning lamp flashes, accompanied by
an audible signal.
The alert stops as soon as the gear
lever is returned to the neutral position.
4
driving

112
Going into engine START mode
The "AS &G" warning lamp goes off
and the engine starts automatically:
-

w

ith a manual gearbox , when you fully
depress the clutch pedal. For safety reasons or to ensure smooth
operation, START mode is invoked
automatically when:
Special cases: START invoked
automatically
- the speed of the vehicle exceeds 2 mph
(3 km/h),
-

y
ou open the driver's door,
-

y
ou unfasten the driver's seatbelt,
-

s
ome special conditions (battery charge,
engine temperature, braking assistance,
ambient temperature...) where the engine is
needed to assure control of a system.
If the system has been deactivated in
STOP mode, the engine will not start.
At any time, press the "AS &G O FF "


switch to
deactivate the system.
Deactivation
In this case the "AS &G" warning lamp
flashes for few seconds, then goes off.
This operation is perfectly normal.This is confirmed by the "AS &G O FF "
warning lamp coming on in the instrument
panel or instrument panel screen.
If the bonnet is opened while the engine
is in standby, the "AS &G" warning lamp
flashes, accompanied by an audible
signal. The engine will not restart
automatically.
To restart the engine with the bonnet
open, use the ignition key or press the
START/STOP button, while pressing
fully on the brake and clutch pedals.
Driving

113
The system is reactivated automatically
at every new start using the key or the
START/STOP button.
Reactivation
Press the "AS &G O FF " switch again.
The system is active again; this is confirmed by
the "AS &G O FF " warning lamp going off in the
instrument panel or instrument panel screen.
Operating fault
In the event of a malfunction with the system,
the "AS &G O FF " warning lamp flashes in the
instrument panel or instrument panel screen,
and the system no longer operates.
have it checked by a CITROËN dealer or a
qualified workshop. This system requires a specific
battery with a special specification
and technology (reference numbers
available from a CITROËN dealer or a
qualified workshop).
Fitting a battery not listed by CITROËN
introduces the risk of malfunction of the
system.
Maintenance
The "Auto Stop & Go" system makes
use of advanced technology. All work
on this type of battery must be done
only by a CITROËN dealer or a qualified
workshop.
In the event of a fault in STOP mode, the
vehicle may stall. The following warning lamps
come on in the instrument panel or instrument
panel screen:
It is then necessary to switch off the ignition,
then restart the engine using the key or the
START/STOP button.
4
Driving