PEUGEOT 308 Handbook page 142

Driving
General points
The active cruise control is switched on manually,
it requires that the speed of the vehicle be between
25 mph (40 km/h) and 90 mph (150 km/h).
As well as the engagement of at least third or
fourth gear (depending on engine) on a manual
gearbox.
As well as the engagement of at least second
gear (depending on engine) on an automatic
gearbox.
If the cruise speed setting is above 90 mph
(150 km/h), the active cruise control switches to
normal cruise control mode (without automatic
adjustment of the safety inter-vehicle distance).
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The active cruise control can be paused
manually with the control, or automatically:
- by pressing the brake or clutch pedal,
- in the event of operation of the ESP, for
safety reasons,
- in the event of an action of the electric
parking brake control,
- 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 to small,
- when the speed of the vehicle in front is to
low,
- when the speed of your vehicle becomes
too low.
Switching off the ignition cancels any
programmed value, and the inter-
vehicle time is reset to 2 seconds.
The active cruise control cannot in any
circumstances replace the observation
of speed limits, nor the the vigilance
and responsibility of the driver.
It is recommended that you always keep
your feet close to the pedals.