Lane Departure Warning System - CITROËN C4 Owner's Handbook Manual

LANE DEPARTURE WARNING
SYSTEM
System which detects the involuntary
crossing of longitudinal traffi c lane mark-
ings on the ground (solid or broken line).
Sensors, fi tted below the front bumper,
trigger a warning if the vehicle drifts
over a lane marking (speed higher than
50 mph (80 km/h)).
This system is particularly useful on
motorways and main roads.
The lane departure warning sys-
tem cannot, in any circumstances,
replace the need for vigilance and
responsibility on the part of the
driver.
D R I V I N G
Activation
 Press this button, the indicator lamp
comes on.
Deactivation
 Press this button again, the indicator
lamp goes off.
The status of the system remains in the
memory when the ignition is switched off.
Detection
You are warned by the vibration of the
driver's seat cushion:
- on the right-hand side, if the mark-
ing on the ground has been crossed
on the right,
- on the left-hand side, if the marking
on the ground has been crossed on
the left.
No warning is transmitted while the
direction indicator is active and for ap-
proximately 20 seconds after the direc-
tion indicator is switched off.
A warning may be transmitted if a direc-
tion marking (e.g. arrow) or non-standard
marking (e.g. graffi ti) is crossed.
Operating fault
In the event of a malfunction,
the service warning lamp
comes on, accompanied by
an audible signal and a message in the
screen.
Contact a CITROËN dealer or a qualifi ed
workshop.
The detection may be impeded:
- if the sensors are dirty (mud,
snow...),
- if the markings on the ground
are worn,
- if there is little contrast be-
tween the markings on the
ground and the road surface.
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