CITROËN C4 PICASSO Handbook page 163

The dynamic cruise control operates by
day and at night, in fog or in moderate
rainfall.
The system does not act on the braking
system, but works only with engine braking.
The regulation range is limited: there will
no longer be any adjustment of speed if the
difference between the programmed speed
setting and the speed of the vehicle in front
becomes too high (18 mph (30 km/h)).
If the difference between the
programmed speed setting and the
speed of the vehicle in front is too
great, the speed cannot be adjusted:
the cruise control is automatically
deactivated.
General points
The dynamic cruise control is switched on
manually: it requires that the speed of the
vehicle be between 25 and 90 mph (40 and
150 km/h), as well as the engagement of:
- fourth gear or higher with a manual
gearbox,
- second gear or higher with an automatic
gearbox in manual mode,
- position D with an automatic gearbox.
The system remains active after changing gear
on vehicles with a manual gearbox and
Stop & Start.
If the speed setting selected is above
90 mph (150 km/h), the system switches
to standard cruise control operation,
with no adjustment of the inter-vehicle
safe distance (a message appears in
the instrument panel).
The dynamic cruise control cannot in any
circumstances replace the observation
of speed limits, nor the need for vigilance
on the part of the driver.
It is recommended that you always keep
your feet close to the pedals.
The dynamic cruise control can be paused
manually or automatically:
- by pressing button 4,
- by pressing the brake pedal,
- in the event of operation of the ESC, for
safety reasons,
- in the event of operation of the electric
parking brake control lever,
- when an inter-vehicle time threshold is
reached (calculated according to the
relative speeds of your vehicle and the
vehicle in front and the inter-vehicle time
setting chosen),
- when the distance between your vehicle
and the one in front becomes too small,
- when the speed of the vehicle in front is too
low,
- when the speed of your vehicle becomes
too low.
The inter-vehicle time setting is kept in
memory on switching off the ignition.
Driving
4
161