CITROEN Grand C4 PICASSO Owner's Handbook Manual page 183

Operating fault
In the event of a fault with the active cruise
control, you are alerted by an audible signal
and display of the message message "Driving
aid functions fault".
Have the system checked by a CITROËN
dealer or a qualified workshop.
When the cruise control is working, take
care if making a maintained press on
one of the cruise control programmed
speed modification buttons: this can
lead to a very quick change in the
speed of your vehicle.
Do not use the active cruise control on
slippery surfaces or in heavy traffic.
When descending a steep hill, the
cruise control may not be able to
prevent the vehicle from exceeding the
programmed speed.
When ascending a steep hill or when
towing, it might not be possible to attain
or maintain the programmed speed.
The use of mats not approved by
CITROËN may interfere with the
operation of the cruise control.
To avoid any risk of jamming the pedals:
- ensure that mats are positioned
correctly,
- never fit one mat on top of another.
The operation of the radar, located in
the front bumper, may be disturbed by
accumulations of grime (dust, mud...)
or in certain weather conditions (snow,
ice...).
The message "SYSTEM INACTIVE:
Visibility reduced" is displayed to signal
that the system has been put into
standby.
Clean the front bumper regularly.
Driving
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