I
38M O N I T O R I N G
Deactivation
of the automatic
functions of the electric
parking brake fi x e d . The "automatic application"
(on switching off the engine)
and "automatic release"
functions are deactivated or
faulty. Activate the function (according to country)
v i a t h e v e h i c l e c o n fi g u r a t i o n m e n u o r
contact a CITROËN dealer.
Warning lamp is on Cause Action/Observations
Dynamic
stability control
(ESP/ASR) fl a s h i n g .
The ESP/ASR regulation is
active. The system optimises traction and improves
the directional stability of the vehicle.
fi x e d . Unless it has been deactivated
with the indicator lamp on
the button on, the ESP/ASR
system is faulty. Have it checked by a CITROËN dealer.
Engine
autodiagnosis system fi x e d .
The emission control system
has a fault.
This lamp should switch off when the engine is sta
rted.
If it does not switch off, contact a CITROËN deale r
urgently.
fl a s h i n g . The engine management
system has a fault. Risk of destruction of the catalytic convertor.
Have it checked by a CITROËN dealer.
Airbags temporarily.
This lamp comes on for a few
seconds when you turn on the
ignition, then switches off.
This lamp should switch off when the engine is
started.
If it does not switch off, contact a CITROËN deale
r.
fi x e d . One of the airbag or seat belt
pretensioner systems has a
fault. Have it checked by a CITROËN dealer.
VIII
126
S A F E T Y
TRAJECTORY CONTROL SYSTEMS
Anti-skid regulation (ASR)
and electronic stability
programme (ESP)
The anti-skid regulation (also known
as Traction Control) optimises trac-
tion to prevent skidding of the wheels,
by acting on the brakes of the driving
wheels and on the engine.
The electronic stability programme acts
on the brake of one or more wheels
and on the engine to keep the vehicle
on the trajectory required by the driver,
within the limits of the laws of physics.
Deactivation
I n e x c e p t i o n a l c o n d i t i o n s ( s t a r t i n g a
vehicle which is bogged down, stuck
in snow, on soft ground...), it may be
advisable to deactivate the ASR and
ESP systems, so that the wheels
can move freely and regain grip.
Press the "ESP OFF" button, lo-
cated in the centre of the dash-
board.
If this warning lamp comes on in
the instrument panel and the in-
dicator lamp on the button comes
on, this indicates that the ASR and
ESP systems are deactivated. T h i s i s i n d i c a t e d b y fl a s h i n g
of this warning lamp on the
instrument panel.
Activation
These systems are activated auto-
matically each time the vehicle is
started.
They come into operation in the event
of a grip or trajectory problem. Intelligent Traction Control
system *
Your vehicle has a system to help
driving on snow.
This automatic system continuously
c h e c k s f o r s i t u a t i o n s o f d i f fi c u l t s u r -
face adhesion that could make it dif-
fi c u l t t o m o v e o f f o r m a k e p r o g r e s s
on deep fresh snow or compacted
snow.
In these situations, the system takes
over from the
ASR system by opti-
mising the amount of wheel slip to
provide the best traction and trajec-
tory control, even without snow tyres
and with or without chains.
I n e x t r e m e l y s e v e r e c o n d i t i o n s ( s n o w
on top of ice, sand, deep mud…), it
can be useful to deactivate the ESP/
ASR systems to allow a degree of
wheel spin and so recover grip.
* Depending on engine type.
