2021 CITROEN C4 AIRCROSS sensor

Instrument panel 12
Warning and indicator lamps
1
3
Instrument panel screen

1
9
Trip computer

3
2
Distance recorder

3
2
Trip distance recorder

3
2
Service indicator

3
3
Adjusting vehicle settings

3
7
Audio- CD system screen

4
4
Audio- CD system touch screen

4
6
Audio-Telematic system touch screen

4
8
Lighting dimmer

5
1
Monitoring
ove
r view
Remote control key 5
2
"Keyless Entry and Starting" system
5
6
Doors

6
2
Boot
6

3
Alarm
6

5
Electric windows

6
8
Panoramic sunroof

7
0
access
Front seats 71
Rear seats
7
5
Mirrors

7
7
Steering wheel adjustment

7
9
Ventilation
8

0
Manual heating / air conditioning

8
2
Automatic air conditioning

8
4
Rear screen demist - defrost

8
9
Interior fittings

9
0
Boot fittings

9
6
Comfort
Starting - stopping the engine with the key 98
Starting - stopping the engine with
the Keyless Entry and Starting system

9
9
Parking brake

1
02
Manual gearbox
1

03
Gear shift indicator

1
04
CVT gearbox

1
05
Hill start assist

1
10
Stop & Start (Auto Stop & Go) function

1
11
Under-inflation detection
1

14
Four wheel drive system

1
18
Cruise control

1
20
Parking sensors

1
23
Reversing camera

1
26
Driving
Lighting controls 1 27
Daytime running lamps
1
30
Automatic illumination of headlamps

1
30
Manual guide-me-home lighting

1
31
Welcome lighting

1
32
Headlamp adjustment
1

33
Wiper controls

1
34
Automatic rain sensitive wipers

1
36
Courtesy lamps

1
38
Boot lamp

1
40
Panoramic roof lighting

1
40
Visibility
Eco-driving
Contents

4
Exterior
Lighting controls 127-131
Headlamp beam adjustment 1 33
Welcome lighting

1
32
Changing bulbs
1

82-185
-

f
ront lamps
-
fo

glamps
-

d
irection indicator repeaters
Wiper controls

1
34-137
Changing a wiper blade
1
97
Door mirrors
7
7-78
Doors
6
2, 64
-

o
pening / closing
-

c
entral locking
Child lock

1
70
Electric windows

6
8 - 69
Alarm
6

5-67
Panoramic sunroof

7

0
Roof bars

2

03
Accessories
20

4-205
Braking assistance

1

42-143
Trajectory control

1

44-145
Tyre pressures

1

75, 235
Under-inflation detection
1

14-117
Boot
6

3
-
o
pening / closing
- em
ergency release
Temporary puncture
repair kit

1

71-174
Changing a wheel

1

75 -180
-

t

ools
-

r

emoving / refitting
Snow chains

1

81
Changing bulbs
1

86-187
-

r

ear lamps
-

3

rd brake lamp
-

n

umber plate lamps
-
fo

glamp
Parking sensors

1

23 -125
Reversing camera

1

26
Towbar
20

1-202
To w i n g
1

9 8 - 2 0 0
Fuel tank

2

10
Remote control key /
electronic

key

5

2- 61
-

o

pening / closing
-

a

nti-theft protection
-
b

attery
over view

8
A. Passenger's airbag deactivation
warning lamp. 1 51
B.
H

azard warning lamps.
1
41
C.
F

ront passenger's seat belt not
fastened or unfastened.

1
47
Central switch panel
Instruments and controls (continued)
A. Manual headlamp adjustment. 133
B. D eactivation of the ASC/ TCL system. 1 4 4
C.
D

eactivation of the parking
sensors.
1

25
D.


d
e
activation of the Stop & Start
(Auto Stop & Go) function.

1
12
Side switch panel
Over view

15
Warning/indicator lampis on Cause Action / Observations
Anti-lock
Braking System
(ABS) fixed.
The anti-lock braking system has a
fault. The vehicle retains conventional braking.
Drive carefully at reduced speed and contact a CITROËN
dealer or a qualified workshop without delay.
Front seat belt
not fastened /
unfastened
fixed, then flashing,
accompanied by an
audible signal.The driver has not fastened or has
unfastened their seat belt.
Pull the strap, then insert the tongue in the buckle.
Airbags and
pretensioners temporarily.
When you switch on the ignition, this
warning lamp comes on for a few
seconds, then goes off. If it does not go off, contact a CITROËN dealer or a qualified
workshop.
fixed. Fault with one of the airbag or seat
belt pretensioner systems. Have it checked by a CITROËN dealer or a qualified
workshop.
Under-inflation fixed,
accompanied by
a message.The tyre pressure for one or more
wheels is too low.
Check the tyre pressures as soon as possible.
This check should preferably be done with the tyres cold.
You must reinitialise the system after every adjustment of
one or more tyre pressures and after replacing one or more
wheels.
For more information refer to the "Under-inflation detection"
section.
flashing
then fixed,
accompanied by
a message. The system has a fault and/or one
or more wheels does not have a
detected sensor.
The tyre pressures are no longer monitored.
Have the system checked by a C
ITR
oËn d

ealer or a
qualified workshop.
1
Monitoring

24
Screen 1 Screen 2Cause Solution - ActionObservations
The brake fluid level is too low. Top up using a brake fluid listed by
CITROËN.If the problem persists, contact
a CITROËN dealer or a qualified
workshop.
Fault with the braking system. You must stop as soon as it is safe to do so.Have the system checked by a
CITROËN dealer or a qualified
workshop.
Fault with the anti-lock braking
system (ABS). Contact a CITROËN dealer or a
qualified workshop.The vehicle retains conventional
braking without assistance but you
are advised to stop.
The tyre pressure is too low in one
or more tyres. Check the tyre pressures as soon
as possible.
This check should preferably
be done with the tyres cold.
You must reinitialise the system
after adjusting one or more tyre
pressures or after changing one or
more wheels.
For more information, refer to the
"Under-inflation detection system"
section.If the problem persists, contact
a C
ITR
oËn d

ealer or a qualified
workshop.
There is a fault with the under-
inflation detection system and/or
at least one wheel does not have a
detected sensor. The tyre pressures are no longer
monitored.
Have the system checked by a
CITROËN dealer or a qualified
workshop.
Monitoring

43
Choice of the set of tyres fitted
If you have previously registered a second set
of tyres with sensors, you must select the set in
use in the display screen after every change.
Restoring factory settings
(RESET)
You can restore the factory settings for all
functions (except the under-inflation alert
threshold and the choice of a set of tyres).
In the menu screen:
F

p

ress the INFO button to select the set of
tyres 1 or 2 (located in menu 3/3) :On the menu screen:
F

p
ress the INFO button to select "RESET"
(located in menu 3/3) :
F

p

ress and hold the INFO button for at least
3 seconds . F

p
ress and hold the INFO button for at least
5 seconds .
There is an audible signal and all of the factory
settings are restored for all functions.
1
Monitoring

79
Rear view mirror
Adjustable mirror providing a central rear ward view.
Equipped with an anti-dazzle system, which darkens the mirror glass and reduces the nuisance to
the driver caused by the sun, headlamps from other vehicles...
Manual day/night model
Adjustment
F Adjust the mirror so that the glass is directed correctly in the "day" position.As a safety measure, the mirrors should be adjusted to reduce the "blind spot".
In order to ensure optimum visibility
during your manoeuvres, the mirror
lightens automatically when reverse
gear is engaged.
Day / night position
F Pull the lever to change to the "night" anti-dazzle position.
F

P
ush the lever to change to the normal
"day" position.
Automatic day/night model
By means of a sensor, which measures the
light from the rear of the vehicle, this system
automatically and progressively changes
between the day and night uses.
Steering wheel adjustment
F When stationary , lower the control lever
to release the steering wheel adjustment
mechanism.
F

A
djust the height and reach to suit your
driving position.
F

P
ull the control lever to lock the steering
wheel adjustment mechanism.
as a s

afety precaution, these
operations should only be carried out
while the vehicle is stationary.
3
Comfort

80
Ventilation
Air intake
The air circulating in the passenger compartment
is filtered and originates either from the outside via
the grille located at the base of the windscreen or
from the inside in air recirculation mode.
Air treatment
The incoming air follows various routes
depending on the controls selected by the
driver:
-
d
irect arrival in the passenger
compartment (air intake),
-

p
assage through a heating circuit (heating),
-

p
assage through a cooling circuit (air
conditioning).
Control panel
The controls of this system are grouped
together on control panel A on the centre
console. 1. W
indscreen demisting-defrosting vents.
2. F ront side window demisting-defrosting
vents.
3.
S

ide adjustable air vents.
4.
C

entral adjustable air vents.5. A
ir outlets to the front footwells.
6. A ir outlets to the rear footwells.
7.
T

emperature sensor.
8.
S

unshine / rain sensor.
Air distribution
Comfort