2021 CITROEN C5 AIRCROSS engine light

157
The system also takes motorcyclists and
animals into account; however, animals
below 0.5 m tall and objects on the road
are not necessarily detected.
This system is comprised of three functions:
-

C
ollision Risk Alert,
-
I

ntelligent emergency braking assistance,
-

A
ctive Safety Brake (automatic emergency
b r ak ing).
The vehicle has a
multifunctional camera
located at the top of the windscreen, and,
depending on version, a radar located in the
front bumper. 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 system can be deactivated or
activated via the Driving /Vehicle
menu of the touch screen.
Deactivation of the system is
signalled by the illumination of this
indicator 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:
-

t
owing a trailer,
-
c
arrying long objects on roof bars or roof
rack,
-
w
ith snow chains fitted,
-
b
efore using an automatic car wash, with
the engine running,
-
b
efore placing the vehicle on a rolling road
in a workshop,
-
t
owed vehicle, engine running,
-
d
amaged front bumper (version with radar),
-
f
ollowing an impact to the windscreen close
to the detection camera.
The system is automatically deactivated
after the use of certain "space-saver"
type spare wheels is detected (smaller
diameter).
The system is automatically deactivated
after detection of a fault with the brake
pedal switch or with at least two brake
lamps.
It is possible that warnings are not given,
are given too late or seem unjustified.
Consequently, always stay in control of
your vehicle and be prepared to react at
any time to avoid an accident.
6
Driving

159
Active Safety Brake
Operation
- The vehicle's speed does not exceed 50 mph (80 km/h) when a stationary vehicle
or a
cyclist is detected.
-

T
he vehicle's speed is above 6 mph
(10
km/h) (versions with camera and radar)
or between 6
mph and 53 mph (10 km/h and
85
km/h) (versions with camera alone) when
a
moving vehicle is detected.If the camera and/or radar have
confirmed the presence of a
vehicle,
a pedestrian or a
cyclist, this
warning lamp flashes (for about
10
seconds) when the function is
acting on the vehicle's brakes.
With an automatic gearbox, in the event of
automatic emergency braking until the vehicle
comes to a
complete stop, keep the brake
pedal pressed down to prevent the vehicle from
starting off again.
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 control the vehicle at any
time by making a
deliberate movement
of 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 fault with the
s ystem, you are alerted by the
continuous illumination of this
warning lamp, accompanied by the
display of a
message and an audible
signal.
Contact a
CITROËN dealer or
a
qualified workshop to have the
system checked.
This function, also called automatic emergency
braking, inter venes following the alert 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

frontal collision by your vehicle where the
driver fails to react.
The system operates under the following
conditions:
-

T

he vehicle's speed does not exceed
37

mph (60

km/h) when a

pedestrian is
detected.
Fatigue detection system
Refer to the General recommendations on
the use of driving and manoeuvring aids .
Take a
break as soon as you feel tired or at
least every two hours.
The function comprises the "Coffee Break
Alert" system combined with the "Driver
Attention Alert" system.
6
Driving

195
For more information on the Warning
and indicator lamps and the associated
alerts, or the Indicators , refer to the
corresponding sections.
Once the AdBlue
® tank is empty, a system
required by regulations prevents starting
of the engine.
If the SCR system is faulty, the level of
emissions from your vehicle will no longer
meet the Euro 6

standard: your vehicle
becomes polluting.
In the event of a

confirmed fault with the
SCR system, you must go to a
CITROËN
dealer or a

qualified workshop as soon
as possible: after travelling a
distance
of 685

miles (1,100 km), a system will be
triggered automatically to prevent engine
starting.
In either case, a range indicator gives you
the distance you can travel before the
vehicle is immobilised.
Freezing of the AdBlue
®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a
heater for the
AdBlue
® tank, allowing you to continue
driving in very cold conditions.
Supply of AdBlue®
It is recommended that the AdBlue® be topped
up as soon as the first alert is issued indicating
that the reser ve level has been reached.
In order to ensure that the SCR system
operates correctly:
-

U

se only AdBlue
® fluid that meets the
ISO
22241
standard.
-

N

ever transfer AdBlue
® to another
container: it would lose its purity.
-

N

ever dilute AdBlue
® with water.
You can obtain AdBlue
® from a CITROËN
d
ealer or a

qualified workshop.
You can also visit a

ser vice station equipped
with AdBlue
® pumps specially designed for
passenger vehicles.
Recommendations on
storage
If the fluid has frozen, it can be used once it has
completely thawed out at room temperature.
Never keep bottles or containers of
AdBlue
® in your vehicle.
Precautions for use
AdBlue® is a urea-based solution. This liquid
is
non-flammable, colourless and odourless
(when kept in a
cool place).
In the event of contact with the skin, wash the
affected area with soap and water. In the event
of contact with the eyes, wash (irrigate) the
eyes with large amounts of water or with an eye
wash solution for at least 15
minutes. If you feel
a

persistent burning sensation or irritation, get
medical attention.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (at high temperature,
for example), the risk of release of ammonia
cannot be excluded: do not inhale the vapour.
Ammonia has an irritant effect on mucous
membranes (eyes, nose and throat).
AdBlue
® freezes below about -11°C and
deteriorates above 25°C. It should be stored in
a

cool place and protected from direct sunlight.
Under these conditions, the fluid can be kept
for at least a
year.
7
Practical information

216
(+) Positive terminal.
It has a quick-release clamp.
(-) Negative terminal.
As the battery's negative terminal is not
accessible, a remote earth point is placed near
the battery.
Starting using another
battery
When your vehicle's battery is discharged, the
engine can be started using a backup battery
(external or from another vehicle) and jump
leads or using a
battery booster.
For access to the (+) terminal:
F

u
nlock the bonnet by activating the internal
release lever, then the external safety catch.
F
r
aise the bonnet.
Never start the engine by connecting
a battery charger.
Never use a 24 V or higher battery
b o o s t e r.
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. F
C
onnect the red cable to the (+) terminal of
flat battery A (at the metal elbow), then to
the (+) terminal of backup battery B or the
b o o s t e r.
F
C
onnect one end of the green or black
cable to the (-) terminal of backup battery
B or the booster (or to an earth point on the
assisting vehicle).
F
C
onnect the other end of the green or black
cable to earth point C on the broken down
vehicle.
F
L
ift the plastic cover on the (+) terminal, if
your vehicle has one. F

S
tart the engine of the assisting vehicle and
leave it running for a few minutes.
F
O
perate the starter on the broken down
vehicle and let the engine run.
If the engine does not start straight away,
switch off the ignition and wait a few moments
before trying again.
F
W
ait for it to return to idle.
F
D
isconnect the jump leads in reverse
order .
F
R
efit the plastic cover to the (+) terminal, if
your vehicle has one.
F A llow the engine to run for at least
30 minutes, by driving or with the vehicle
stationary, so that the battery reaches an
adequate state of charge.
If your vehicle has an automatic gearbox,
never try to start the engine by pushing
the vehicle.
In the event of a breakdown

217
Charging the battery using
a battery charger
For optimum ser vice life of the battery, it is
essential to maintain an adequate state of
charge.
In some circumstances, it may be necessary to
charge the battery:
-

u
sing the vehicle mainly for short journeys,
-

i
f the vehicle is to be taken off the road for
several weeks.
Contact a
CITROËN dealer or a qualified
workshop.
To charge the vehicle's battery yourself,
use only a


charger compatible with lead-
acid batteries with a
nominal voltage of
12


V.
Follow the instructions provided by the
manufacturer of the charger.
Never reverse polarities.
It is not necessary to disconnect the
battery. F

S
witch off the ignition.
F
S
witch off all electrical consumers (audio
system, lighting, wipers, etc.). Never try to charge a frozen battery – risk
of explosion!
If the battery has frozen, have it checked
by a CITROËN dealer or by a qualified
workshop who will verify that the internal
components have not been damaged
and that the case has not cracked, which
would mean a
risk of toxic and corrosive
acid leaking.
Some functions, including Stop & Start,
are not available if the battery is not
sufficiently charged.
Disconnecting the battery
F Switch off charger B before connecting the cables to the battery, so as to avoid any
dangerous sparks.
F

E
nsure that the charger cables are in good
condition.
F

I
f the vehicle has one, lift the plastic cover
on the (+) terminal.
F

C
onnect the cables of charger B as follows:
-

t
he positive (+) red cable to the (+)
terminal of battery A ,
-

t
he negative (-) black cable to earth point
C on the vehicle.
F

A
t the end of the charging operation, switch
off charger B before disconnecting the
cables from battery A . In order to maintain an adequate state
of charge for starting the engine, it is
recommended that the battery be disconnected
if the vehicle is taken out of ser vice for a
long
period.
Before disconnecting the battery:
F

c
lose all openings (doors, tailgate, windows,
sunroof),
F

s
witch off all electrical consumers (audio
system, wipers, lighting, etc.),
8
In the event of a breakdown

222
Engine technical data and
towed loads
Engines
The engine characteristics are given in the
vehicle's registration document, as well as in
sales brochures.The maximum power corresponds to the
value type-approved on a
test bed, under
conditions defined in European legislation
(Directive 1999/99/EC).
For more information, contact a
CITROËN
dealer or a
qualified workshop.
Weights and towed loads
The weights and towed loads relating to your
vehicle are given in the registration document,
as well as in sales brochures.
These values are also given on the
manufacturer's plate or label.
For more information, contact a CITROËN
dealer or a
qualified workshop. The GTW (Gross Train Weight) and towed load
values indicated are valid up to a
maximum
altitude of 1,000 metres. The towed load value
must be reduced by 10% for each additional
1,000 metres of altitude.
The maximum authorised nose weight
corresponds to the weight permitted on the
towball.
When exterior temperatures are high,
the vehicle per formance may be limited
in order to protect the engine. When the
exterior temperature is higher than 37°C,
limit the towed weight.
Towing using a lightly loaded vehicle can
adversely affect roadholding.
Braking distances are increased when
towing a trailer.
When using a
vehicle to tow, never exceed
a
speed of 62 mph (100 km/h) (obser ve
the local legislation in force).
If the exterior temperature is high, it is
recommended that the engine be allowed
to idle for 1
to 2 minutes after the vehicle
comes to a
stop, to facilitate its cooling.
D. Tyres/paint code label.
This label is affixed to the driver's door
aperture.
It bears the following information about the
tyres:
-

t

he tyre pressures, unladen and laden,
-

t

he tyre specification, made up of the
dimensions and type as well as the load and
speed indices,
-

t

he spare tyre pressure.
It also indicates the paint colour code.
The vehicle may be originally equipped
with tyres with higher load and speed
indices than those indicated on the label,
without affecting inflation pressure.
Technical data

225
AAccessories .................................................... 89
Access to rear seats ....................................... 55
Active Safety Brake.................. 17, 15 6 -157, 159
AdBlue
® ..................................... 1 6, 28, 19 4 -195
AdBlue® tank ................................................. 19 6
Additive, Diesel ...................................... 191-192
Adjusting headlamps


...................................... 84
Adjusting head restraints


..........................54-55
Adjusting seats


.......................................... 55-56
Adjusting the air distribution


.....................64- 67
Adjusting the air flow
........................... 6

3, 65 - 67
Adjusting the date


............................... 34, 16, 29
Adjusting the height and reach of the steering wheel


.............................................. 58
Adjusting the lumbar support
.......................... 55
A

djusting the seat belt height
......................... 98
A

djusting the temperature

........................63, 65
Adjusting the time


............................... 34, 15, 30
Advanced Grip Control


............................. 95-96
Advice on care and maintenance


.................19 4
Advice on driving


................................... 11 6 -117
Airbags
...............................

.....19, 101, 103, 10 6
Airbags, curtain


...................................... 102-103
Airbags, front .................................. 101-103, 10 6
Airbags, lateral


....................................... 102-103
Air conditioning


................................... 62- 64, 67
Air conditioning, automatic


.......................65, 68
Air conditioning, dual-zone automatic


......64, 67
Air conditioning, manual
........................... 63

-64
Air intake


................................................... 65-66
Air vents


.......................................................... 61
Alarm


......................................................... 4 9 - 51
Anti-lock braking system (ABS)
................91-92
Anti-slip regulation (ASR)


...................18, 91- 9 6
Anti-theft/Immobiliser


............................. 4 0 , 11 8
Apple CarPlay connection


........................11, 17
Armrest, front
............................................. 7 3 -74
Assistance call
...............................

...........90 -91
Assistance, emergency braking


.......91- 92, 15 8
Audio streaming (Bluetooth)


...................8 -9, 23Cable, audio


....................................................23
Cable, Jack


.....................................................23
Capacity, fuel tank


........................................18 0
Cap, fuel filler

...............................
.................18 0
CD


...............................................................8, 23
CD, MP3


......................................................8, 23
Central locking
..........................................

36, 39
Changing a


bulb
.....................2

06 -207, 210 -211
Changing a


fuse
.............................21

2-213, 215
Changing a


wheel
.........................19

8 -19 9, 203
Changing a


wiper blade
..................................87
C

hanging the remote control battery

..............42
Charger, induction


......................................72-73
Charger, wireless
....................................... 7

2-73
CHECK
................

............................................29
Checking the engine oil level


..........................27
Checking the levels


................................18 9 -191
C
BBattery .................................... 186, 215, 217-218
Battery, 12 V ............................... ....192, 215 -217
Battery, charging


........................................... 217
Battery, remote control


.......................41- 4 3 , 7 0
Blind
..............................

............................52-53
Blind spot monitoring system, active
............165
Blind spot sensors


................................ 16 4 -166
BlueHDi


............................... 14, 28 -29, 192, 197
Bluetooth (hands-free)
........................ 12

, 24 -25
Bluetooth (telephone)
..................... 1

2-13 , 24 -2 6
Bonnet


.................................................... 188 -189
Boot


............................................... 44- 45, 47, 78
Brake discs


.................................................... 193
Brake lamps
...............................

...................210
Brakes


..................................................... 13, 193
Braking assistance system
.......................91-92
Braking, automatic emergency ...17, 15 6 -157, 159
Brightness
....................................................... 14
Bulbs


............................................................. 207
Bulbs (changing)


.................... 206 -207, 210 -211 Checking tyre pressures (using the
kit)

...............................................
199-200, 202
Checks

...........................................
189, 192-193
Checks, routine

......................................
192-193
Child lock

.......................................................
115
Children

..................................................
11 0 -114
Children (safety)

............................................
115
Child seats
.............
10
0, 104 -105, 107, 109 -110
Child seats, conventional

.......................
109 -110
Child seats, i-Size .........................................
114
Child seats, ISOFIX ................................
111 -114
Cigarette lighter

..............................................
72
CITROËN Connect Nav

....................................
1
CITROËN Connect Radio
................................. 1
C
leaning (advice)

..........................................
19 4
Closing the boot ..................................
39, 44- 45
Closing the doors ......................................39, 44
Coffee Break Alert
........................................160
Collision Risk Alert ................................. 15 6 -15 8
Configuration, vehicle
..................................... 33
C

onnection, Bluetooth
..............1

2-13, 19, 24-26
Connection, MirrorLink


........................1 0 -11, 1 8
Connection, Wi-Fi network


.............................19
Control stalk, lighting


................................79, 81
Control stalk, wipers

...........................8

5 - 86, 88
Controls, steering mounted


...................125 -12 9
Control, back-up boot release
..................45, 48
Control, back-up door
................................41- 42
Control, heated seats


......................................57
Courtesy lamp
...............................................2 11
Courtesy lamps
...............................................75
Cover, load space
...........................................76
Cruise control


..........................140 -141, 14 4 -14 6
Cruise control by speed limit recognition
...............................

............140 -141
Cruise control, adaptive
................................147
Cruise control, adaptive with Stop function


................................................140 -141
Cup holder
.......................................................71
.
Alphabetical index

227
Jack .........................................198 -19 9, 203, 23
Jump starting ................................................ 216J
KKey ...................................................... 35, 40 - 42
Keyless Entry and Starting ................3
7- 41, 120
Key not recognised

....................................... 12

1
Key with remote control

....................3

5 - 3 6 , 11 8
Key, electronic


............................................37- 3 9
Kit, hands-free
.................................... 12

, 24 -25
Kit, temporary puncture repair
...... 1

98-200, 202Load reduction mode


....................................
18 6
Load space cover ............................................
76
Locating your vehicle

......................................
37
Locking
...............................
.......................
3 9 - 41
Locking from the inside ...................................
41
Locking the doors ........................................... 41
L ow fuel level ................................................18
0
Lumbar


............................................................55
LLabels, identification ..................................... 221
Lamps, front .................................................. 19 4
Lamps, parking


............................................... 81
Lamps, rear


........................................... 19 4, 210
Lamp, boot


.............................................. 78, 212
Lane departure warning system, active ...17, 1 6 1Lane Keeping Assist, Active ... 147, 151-15 3, 15 6
Leather (care)
................................................ 19 4
LEDs – Light-emitting diodes ...81, 207, 209 -211
Levels and checks
.............................. ...18 9 -191
Level, AdBlue
® .............................................. 19 2
Level, brake fluid ........................................... 191
Level, Diesel additive


............................. 191-192
Level, engine coolant


.............................. 2 7, 1 9 1
Level, engine oil
...................................... 2 7, 1 9 0
Level, screenwash fluid

.......................... 87

, 191
Light-emitting diodes – LEDs ...81, 207, 209 -211
Lighting dimmer
.............................................. 30
Lighting, cornering


.......................................... 85
Lighting, directional


......................................... 85
Lighting, guide-me home


.......................... 3 7, 8 2
Lighting, interior
...............................

............... 75
Lighting, ambience


.......................................... 75
Lighting, welcome


........................................... 82
Loading


................................................... 77, 187
MMaintenance (advice) ....................................19 4
Maintenance, routine ............................1 3 7, 1 9 2
Manoeuvring aids (recommendations)


.........13 5
Map reading lamps
......................................... 75
M

arkings, identification

.................................221
Massage function
..................................... 57- 5 8
Massage, multi-point


................................57- 5 8
Mat


.......................................................... 74 , 13 7
Memorising a
speed
..................................... 14

6
Menu


............................................................... 11
Menu short cuts

.............................................. 33
M

enus (audio)

........................................3-4, 3-4
Menu, main
..................................................... 33
M

essages

........................................................ 27
Messages, quick
............................................. 2

7
Mirrors, door ......................... 58 - 59, 68, 16 4 -166
Mirror, rear view
........................................ 59-60
Mirror, vanity


................................................... 71
Misfuel prevention


......................................... 18 0
Motorised tailgate
..................................... 4

5 - 47
Mountings, ISOFIX


....................................... 111
NNet, high load retaining ...................................77
Number plate lamps ...................................... 2 11
OObstacle detection ........................................ 167
Oil change ..................................................... 19
0
Oil consumption


............................................ 19 0
Oil, engine


..................................................... 19 0
On-board tools


................................ 78, 198 -19 9
Opening the bonnet


...................................... 188
Opening the boot


................................ 38, 44- 45
Opening the doors


.................................... 38, 44
Opening the fuel filler flap
.............................18 0
Opening the windows
..................................... 36
PPads, brake ................................................... 193
Paint .............................................................. 221
Paint colour code
.......................................... 221
Park Assist

...............................
......173 -174, 176
Parking brake, electric
.................. 1

3, 18, 21-22,
121-124, 193
Parking sensors, audible and visual


.............167
Parking sensors, front


...................................167
Parking sensors, rear .................................... 167
Personalisation


............................................ 9 -10
Plates, identification ...................................... 221
Player, Apple
® ............................................. 9 , 23
Player, MP3

CD ............................... ................23
Player, USB

................................................. 8, 22
Power steering
...............................

.................23
Pre-heater, Diesel


........................................... 19
Pressures, tyres


.................................... 193, 202
Pre-tensioning seat belts


.............................. 10 0
Priming the fuel system
......................... 197-198
Profiles


...................................................... 14, 28
Programmable cruise control


.......................14 4
Programmable speed limiter .........................142
Protecting children


...101-102, 104 -107, 110 -114
Puncture


................................. 199-200, 202-203
.
Alphabetical index