Trajectory Control Systems; Anti-Slip Regulation (Asr) And Electronic Stability Programme (Esp); Intelligent Traction Control System ("Snow Motion") - CITROËN C5 Owner's Handbook Manual

TRAJECTORY CONTROL
SYSTEMS
Anti-slip regulation (ASR)
and electronic stability
programme (ESP)
The anti-slip 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.
Intelligent traction control
system ("Snow motion")
VIII
Your vehicle has a system to im-
prove traction on snow: intelligent
traction control .
This system detects situations of low
adhesion that might make moving off
and progress diffi cult on deep fresh
snow or compacted snow .
In these situations the intelligent
traction control system regulates
the amount of wheel slip to optimise
the traction and trajectory control of
your vehicle.
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S A F E T Y
For vehicles with Hydractive III +
suspension, manual adjustment of
ground clearance to the intermediate
position improves further the ability
to make progress in deep snow (see
the relevant paragraph).
The use of snow tyres is strongly
recommended on surfaces with low
adhesion.
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.
This is indicated by fl ashing
of this warning lamp in the
instrument panel.
Deactivation
In exceptional conditions (starting 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 middle of the dash-
board.
If this warning lamp comes on in
the instrument panel and the in-
dicator lamp in the button comes
on, this indicates that the ASR and
ESP systems are deactivated.
It is recommended that these systems
be reactivated as soon as possible.