Assisted Lane Departure Warning System - CITROËN C4 PICASSO Handbook

Driving
Assisted lane departure warning system
Using a camera placed at the top of the windscreen to identify lane markings on the ground, this systems corrects the trajectory of the vehicle while
alerting the driver if it detects a risk of involuntary crossing of a line.
This system is particularly useful on motorways and main roads.
Conditions for operation
The speed of the vehicle must be between 40
and 112 mph (65 and 180 km/h).
The carriageway must have at least one lane
marking (solid or broken) on the ground.
The driver must hold the wheel with both
hands.
The change of trajectory is not accompanied by
operation of the direction indicators.
The ESC system must be activated.
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The assisted lane departure warning
system cannot, in any circumstances,
replace the need for vigilance on the part
of the driver.
The driver remains responsible for the
vehicle in all circumstances. The system
helps the driver only when there is a risk
of the vehicle involuntarily wandering
from the lane it is being driven on.
It does not manage the safe driving
distance, the speed of the vehicle or the
brakes.
The driver must hold the steering wheel
in a way that allows control to be taken
back in circumstances where the system
is not able to intervene (where there are
no lane markings, for example).
It is necessary to observe the driving
regulations and take a break every
two hours.
Operation
Once the system identifies a risk of the vehicle
involuntarily crossing one of the lane markings
detected, it makes the correction to the
trajectory necessary to return the vehicle to its
initial path.
The driver will then notice a turning movement
of the steering wheel.
This warning lamp flashes during
trajectory correction.
If the driver wishes to maintain the
trajectory of the vehicle, they can
prevent the correction by keeping a firm
grip on the wheel (during an avoiding
manoeuvre, for example).
The correction is interrupted if the
direction indicators are operated.