2021 CITROEN C5 AIRCROSS engine light

81
Daytime running lamps/
sidelamps
The front and rear lamps light up automatically
when the engine starts.
They provide the following functions:
-
D
aytime running lamps (lighting control
stalk at position " AUTO" with adequate light
level).
-

S
idelamps (lighting control stalk at " AUTO"
position with low light levels or "Sidelamps
only" or "Dipped/main beam headlamps").
The LEDs are brighter when operating as
daytime running lamps.
Parking lamps
Side markers for the vehicle by illumination of
the sidelamps on the traffic side only.
Automatic illumination of
headlamps
When the ring is at the " AUTO" position and
a low level of ambient light is detected by the
rain/sunshine sensor, the number plate lamps,
sidelamps and dipped beam headlamps are
switched on automatically, without any action
on the part of the driver. They can also come
on if rain is detected, at the same time as
automatic operation of the windscreen wipers.
As soon as the brightness returns to
a
sufficient level or after the windscreen wipers
are switched off, the lamps are switched off
automatically.
Malfunction
In the event of a malfunction of
t he sunshine sensor, the lighting
comes on and this warning lamp is
displayed in the instrument panel,
accompanied by an audible signal
and/or a


message.
Contact a
CITROËN dealer or
a


qualified workshop.
Do not cover the sunshine sensor, linked
with the rain sensor and located at the
top centre of the windscreen behind the
interior rear view mirror; the associated
functions would no longer be controlled.
In fog or snow, the sunshine sensor may
detect sufficient light. In this case, the
lighting will not come on automatically.
F

D

epending on version, within one minute
of switching off the ignition, operate the
lighting control stalk up or down depending
on the traffic side (for example: when
parking on the left; lighting control stalk
upwards; the right-hand sidelamps come
o n).
This is confirmed by an audible signal and
illumination of the corresponding direction
indicator lamp in the instrument panel.
To switch off the parking lamps, return the
lighting control stalk to the central position.
4
Lighting and visibility

92
Emergency braking assistance
(EBA)
In an emergency, this system enables you to
reach the optimum braking pressure more
quickly and therefore reduce the stopping
distance.
It is triggered in relation to the speed at which
the brake pedal is pressed. This is felt by
a reduction in the resistance of the pedal and
an increase in braking efficiency.
Anti-slip regulation (ASR)
This system optimises traction in order to
avoid wheel slip by acting on the brakes of
the driving wheels and on the engine. It also
improves the directional stability of the vehicle
on acceleration.
Dynamic stability control (DSC)
If there is a difference between the path
f ollowed by the vehicle and that required by the
driver, this system monitors each wheel and
automatically acts on the brake of one or more
wheels and on the engine to return the vehicle
to the required path, within the limits of the laws
of physics.
Trailer stability assist (TSA)
This system allows control of the vehicle to be
retained when towing a trailer, so as to avoid
the risk of snaking.
Anti-lock braking system
(ABS) and electronic brake
force distribution (EBFD)
The fixed illumination of this warning
lamp signals that there is a fault with
the ABS.
Illumination of this warning lamp,
coupled with the STOP and ABS
warning lamps, accompanied by the
display of a
message and an audible
signal, signals that there is a
fault
with the electronic brake force
distribution (EBFD). Normal operation of the ABS may make
itself felt by slight vibrations of the brake
pedal.
When braking in an emergency, press
very firmly and maintain this pressure.
When changing wheels (tyres and rims),
ensure that these are approved for your
vehicle.
After an impact, have these systems
checked by a
CITROËN dealer or
a


qualified workshop.
Intelligent traction control
system ("Snow motion ")
The vehicle retains conventional braking. Drive
carefully at moderate speed.
Contact a
CITROËN dealer or a qualified
workshop as soon as possible.
You must stop as soon as it is safe to do so.
Call a
CITROËN dealer or a qualified
workshop. Depending on version, your vehicle has
a
system to help driving on snow: intelligent
traction control.
This system detects situations of poor sur face
grip that could make it difficult to move off
or make progress on deep fresh snow or
compacted snow.
In these situations, the intelligent traction
control limits the amount of wheel spin to
provide the best traction and trajectory control
for your vehicle.
Safety

94
ASR/DSC
These systems offer increased safety
in normal driving, but they should not
encourage the driver to take extra risks or
drive at high speed.
It is in conditions of reduced grip (rain,
snow, ice) that the risk of loss of grip
increases. It is therefore important for your
safety to keep these systems activated in
all conditions, and particularly in difficult
conditions.
The correct operation of these
systems depends on obser vation of
the manufacturer's recommendations
regarding both the wheels (tyres and
rims), braking and electronic components
and the assembly and repair procedures
used by CITROËN dealers.
The use of snow tyres is recommended,
in order to be able to benefit from the
efficiency of these systems in winter
conditions.
In this case, it is essential to equip the
four wheels with tyres approved for your
vehicle.Trailer stability assist (TSA)
When towing, this system reduces the risk of
the vehicle or trailer swaying.
Operation
The system is activated automatically when the
ignition is switched on.
The electronic stability control (ESC) must not
have any faults.
If the system detects oscillations (snaking) in
the movement of the trailer at speeds between
37 and 99 mph (60 and 160 km/h), it acts
on the brakes to stabilise the trailer and, if
necessary, reduces the engine power to slow
down the vehicle.
The correction is signalled by the
flashing of this warning lamp in the
instrument panel and illumination of
the brake lamps.
For information on the weights and towed
loads, refer to the "Technical data" section or
the registration certificate for your vehicle.
To ensure complete safety while driving with
a
To w b a r d e v i c e , refer to the corresponding
section.
Operating fault
Should a fault occur with the system,
t his warning lamp comes on in the
instrument panel, accompanied by
the display of a
message and an
audible signal.
The trailer stability assist system offers
increased safety in normal driving,
provided that the recommendations on
towing a
trailer are obser ved. It should not
encourage the driver to take risks, such
as towing a
trailer in adverse operating
conditions (overloading, failure to obser ve
the trailer nose weight, worn or under-
inflated tyres, faulty braking system, etc.)
or drive at too high a
speed.
In certain cases, snaking of the trailer
may not be detected by the ESC system,
particularly with a


light trailer.
When driving on slippery or poor sur faces,
the system may not be able to prevent
sudden snaking of the trailer.
If you continue to tow a
trailer, reduce your
speed and drive carefully!
Contact a
CITROËN dealer or a qualified
workshop to have the system checked.
Safety

117
In case of towing
Driving with a trailer places greater
d emands 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
decreased air density at altitude reduces
engine performance.
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
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.
F

D
istribute 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.
Ty r e s
F Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
F 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
t emperature 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.
F

R
educe 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.
Brakes
Braking distances are increased when towing
a trailer. To avoid overheating of the brakes, the
use of engine braking is recommended.
Side wind
Bear in mind the increased susceptibility to the
wind that the vehicle will have.
6
Driving

121
Switching the ignition on
without starting
With the electronic key inside the vehicle,
pressing the "START/STOP " button, without
pressing any of the pedals , allows the
ignition to be switched on without starting the
engine (turning on the instrument panel and
accessories such as the audio system and the
lighting).
F

P
ress this button again to switch off the
ignition and allow the vehicle to be locked.
Key not detected
Back-up starting
A back-up reader is fitted to the steering
column to allow the engine to be started if
the system does not detect the key in the
recognition zone, or when the battery in the
electronic key is discharged. F

W
ith a manual gearbox
, place the gear
lever in neutral, then fully depress the clutch
pedal.
F
W
ith an automatic gearbox
, select mode
P , then fully depress the brake pedal.
F
P
ress the "
START/STOP " button.
The engine starts.
Back-up switch-off
When the electronic key is not detected or is
no longer in the recognition zone, a message
appears in the instrument panel when closing
a
door or trying to switch off the engine.
F

T
o confirm the instruction to switch off the
engine, press the " START/STOP" button for
about five seconds.
Emergency switch-off
In the event of an emergency only, the engine
can be switched off without conditions (even
when driving).
Press the " START/STOP " button for about
5


seconds.
In this case, the steering column locks as soon
as the vehicle stops.
On certain versions with the EAT8
automatic
gearbox, the steering column does not lock.
F

P

lace and hold the remote control against
the reader. In the event of a
fault with the electronic key,
contact a CITROËN dealer or a qualified
workshop.
Electric parking brake
In automatic mode, this system applies the
parking brake when the engine is switched off
and releases it when the vehicle moves off.
6
Driving

128
Moving off
From mode P:
F F ully depress the brake pedal.
F

S
tart the engine.
F

M
aintaining pressure on the brake pedal,
press the Unlock button.
F

P
ush once or twice rear ward to select the
automatic mode D , or for ward to engage
reverse R .
From neutral N :
F

F
ully depress the brake pedal.
F

S
tart the engine.
F

M
aintaining pressure on the brake pedal,
push rear ward to select the automatic mode
D , or while pressing the Unlock button push
forward to engage reverse R .
Then, from D or R :
F

R
elease the brake pedal.
F

A
ccelerate progressively to automatically
release the electric parking brake.
The vehicle moves off immediately.
In severe wintry conditions (temperature
below -23°C), it is recommended that the
engine be allowed to run for a
few minutes
before moving off, to ensure the correct
operation and durability of the engine and
gearbox. If your vehicle has an automatic gearbox,
never try to start the engine by pushing
the vehicle.
Stopping the vehicle
Whatever the state of the gearbox when the
ignition is switched off, mode P is engaged
automatically and immediately.
However, in mode N
, mode P will be engaged
after a
duration of 5 seconds (allowing for the
process of putting the vehicle to free-wheeling).
Check that mode P has been engaged and
that the electric parking brake was applied
automatically; if not, apply it manually.
The corresponding indicator lamps
in the selector and the electric
parking brake control lever must
be on, as well as those in the
instrument panel.
Operating faults
Gearbox operating fault
This is signalled by the illumination of
this warning lamp, accompanied by the
display of a message and an audible
signal, when the ignition is switched on.
Go to a CITROËN dealer or a qualified
w orkshop.
Do not drive faster than 62
mph (100 km/h),
keeping to the speed limit.
The gearbox switches to back-up mode: mode
D is locked in third gear, the steering-mounted
control paddles are inoperative, mode M is no
longer available. You may feel a
pronounced
jolt when engaging reverse. This does not
present any risk for the gearbox.
Selector operating fault
Minor malfunction
You are alerted by this warning lamp
lighting up, accompanied by the display
of a
message and an audible signal.
Drive cautiously and go to a CITROËN dealer
o r a qualified workshop.
In certain cases, the selector lamps may not
come on, but the state of the gearbox is still
displayed in the instrument panel.
Major malfunction
You are alerted by the illumination of
this warning lamp.
Driving

130
Malfunction
Gear efficiency indicator
(Depending on engine.)
This system reduces fuel consumption by
recommending the most appropriate gear.
Operation
Depending on the driving situation and your
vehicle's equipment, the system may advise
you to skip one or more gears.
Gear engagement recommendations are
only optional. In fact, the configuration of the
road, the traffic density and safety remain
determining factors when choosing the best
gear. Therefore, the driver remains responsible
for deciding whether or not to follow the
system's advice.
This function cannot be deactivated.With an automatic gearbox, the system is
only active in manual operation.
The information appears in the
instrument panel in the form of an
arrow and the recommended gear.
The system adapts its gear shift
recommendation according to the driving
conditions (slope, load, etc.) and the
driver's requirements (power, acceleration,
b r a k i n g , e t c .) .
The system never suggests:
-
e
ngaging first gear,
-
enga
ging reverse.
Uphill
, with the vehicle stationary, the vehicle
is held for a

short time when you release the
brake pedal.
With a

manual gearbox
, if you are in first gear
or in neutral.
With an automatic gearbox , if you are in
position D or M .
Downhill , with the vehicle stationary and
reverse gear engaged, the vehicle is held for
a

short time when you release the brake pedal. If a
fault in the system occurs, these warning
lamps come on.
Contact a CITROËN dealer or a qualified
workshop to have the system checked.Stop & Start
The Stop & Start function puts the engine
temporarily into standby – STOP mode – during
phases when the vehicle is stopped (red lights,
queues, etc.). The engine restarts automatically
– START mode – as soon as the driver wishes
to move off again.
Primarily designed for urban use, the function
is intended to reduce fuel consumption and
exhaust emissions as well as the noise level
when stationary.
The function does not affect the functionalities
of the vehicle, in particular the braking.
Driving

140
Activation/Deactivation
By default, the system is automatically
activated at every engine start.The function is activated and
deactivated in the Driving /Vehicle
menu of the touch screen.
Displays in the instrument panel
1. Detected speed limit indication.
or
2. Indication of the end of the speed limit.
The system is active but is not detecting speed
limit information. On detection of speed limit information, the
system displays the value.Operating limits
The legislation on speed limits is specific to
each country.
The system does not take account of reduced
speed limits in the following cases:
-

p
oor weather (rain, snow),
-
a

tmospheric pollution,
-
w

hen towing,
-

d
riving with a space-saver type spare wheel
or snow chains fitted,
-
p

uncture repair using the temporary repair
kit,
-
y

oung drivers, etc. The following situations may interfere with
the operation of the system or prevent it from
working:
-

p
oor visibility (inadequate street lighting,
falling snow, rain, fog),
-
w
indscreen area located in front of the
camera dirty, misted, frost-covered, snow-
covered, damaged or covered by a sticker,
-
f
ault with the camera,
-
o
bsolete or incorrect mapping,
-
o
bstructed road signs (by other vehicles,
vegetation, snow),
-
s
peed limit signs that do not conform to the
standard, are damaged or distorted.
Recommendation
For a suggested maximum speed, the first
t ime that the vehicle's speed exceeds it by
more than 3
mph (5 km/h) (example: 59 mph
(95
km/h)), the speed flashes for 10 seconds.
In addition to Speed Limit recognition and
recommendation , the driver can select the
speed displayed as a
speed setting for the
speed limiter or cruise control using the speed
limiter or cruise control storage button.
Driving