four wheel drive CITROEN C5 AIRCROSS 2020 Handbook (in English)

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

133
must be reinitialised ever y time the tyre
pressures are adjusted or a wheel changed.
The system triggers an alert as soon as it
detects a
drop in the inflation pressure of one
or more tyres.
Under-inflation detection does not replace
the need for vigilance on the part of the
driver.
This system does not avoid the need
to regularly check the tyre pressures
(including the spare wheel) as well as
before a


long journey.
Driving with under-inflated tyres,
particularly in adverse conditions (heavy
load, high speed, long journey):
-
w

orsens road-holding,
-
l

engthens braking distances,
-

c
auses premature wear of the tyres,
-

i
ncreases fuel consumption.
The inflation pressures defined for your
vehicle can be found on the tyre pressure
label.
For more information on the
Identification markings , refer to the
corresponding section. Checking tyre pressures
This check should be done when the tyres
are "cold" (vehicle stopped for 1
hour or
after a
journey of less than 6 miles (10 km)
at moderate speeds).
Other wise, add 0.3
bar to the pressures
shown on the label.
Under-inflation alert
This is signalled by continuous
illumination of this warning lamp,
an audible signal and the display of
a


message.
F

R

educe speed immediately, avoid excessive
steering movements and avoid sudden
braking.
F

S

top the vehicle as soon as it is safe to
do so.
The loss of pressure detected does not
always cause visible bulging of the tyre.
Do not rely on just a
visual check. F

I
f it is not possible to make this check
immediately, drive carefully at reduced
speed.
F
I
n the event of a puncture, use the
temporary puncture repair kit or the spare
wheel (depending on equipment).
The alert is kept active until the system is
reinitialised.Reinitialisation
The system must be reinitialised after any
adjustment to the pressure of one or more
tyres, and after changing one or more wheels.
F

U

sing a

compressor, such as the one in the
temporary puncture repair kit, check the
pressures of the four tyres when cold. Before reinitialising the system, make
sure that the pressures of the four tyres
are correct for the conditions of use of the
vehicle and conform to the values written
on the tyre pressure label.
Check the pressures of the four tyres
before performing the reinitialisation.
The system does not advise if a
pressure
is incorrect at the time of reinitialisation.
6
Driving

220
F Switch on the hazard warning lamps on both vehicles.
F

M
ove off gently, drive slowly and for a short
distance. General recommendations
Obser ve the legislation in force in the
country where you are driving.
Ensure that the weight of the towing
vehicle is higher than that of the towed
vehicle.
The driver must remain at the wheel of
the towed vehicle and must have a
valid
driving licence.
When towing a
vehicle with all four
wheels on the ground, always use an
approved towing arm; rope and straps are
prohibited.
The towing vehicle must move off gently.
When the vehicle is towed with its engine
off, there is no longer braking and steering
assistance.
In the following cases, you must always
call on a
professional recovery ser vice:
-

v
ehicle broken down on a motor way or
main road,
-
f

our-wheel drive vehicle,
-

w
hen it is not possible to put the
gearbox into neutral, unlock the
steering, or release the parking brake,
-

w
hen it is not possible to tow a vehicle
with an automatic gearbox, engine
running,
-

t
owing with only two wheels on the
ground,
-

w
here there is no approved towbar,
etc. available.
In the event of a breakdown