lane assist Peugeot 308 2014 Owner's Manual - RHD (UK, Australia)

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4
Driving

Active cruise control
This systems allows the vehicle's speed to be maintained at a value set by the driver. In addition it allows (when circumstances permit) an inter-vehicle time that you have selected (around 2 seconds by default and at each activation of the system) to be maintained.
Principles of operation
Using a radar with a range of about 100 metres, located at the front of the vehicle, this system detects a vehicle running in front of your vehicle. It automatically adapts the speed of your
vehicle to that of the vehicle in front. If the vehicle in front is running more slowly, the system progressively reduces the speed of your vehicle using just engine braking (as if the driver had pressed the " - " button). If your vehicle is too close to, or approaching too quickly the vehicle in front, the cruise control is automatically deactivated. The driver is then alerted by an audible signal, accompanied by a message. If the vehicle in front accelerates or changes lane, the active cruise control progressively accelerates your vehicle to return to the programmed speed. If the driver operates a direction indicator to overtake a slower vehicle, the active cruise control allows your vehicle to temporarily approach the vehicle in front to assist the overtaking manoeuvre, though never exceeding
the programmed speed.
The active cruise control operates by day and at night, in fog or 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.
The activation of this system deactivates the display of inter-vehicle time.
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.

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Driving
Blind spot sensors
Operation
A warning lamp appears in the door mirror on the side in question: - immediately, when being overtaken, - after a delay of about one second, when overtaking a vehicle slowly.
This driving assistance system warns the driver of the presence of another vehicle in the blind spot angle of their vehicle (areas masked from the driver's field of vision), as soon as this presents a potential danger.
This indicator lamp comes on in the instrument panel. Sensors fitted in the front and rear bumpers monitor the blind spots.
This system is designed to improve safety when driving and is in no circumstances a substitute for the use of the interior rear view mirror and door mirrors. It is the driver's responsibility to constantly check the traffic, to asses the distances and relative speeds of other vehicles and to predict their movements before deciding whether to change lane. The blind spot sensor system can never replace the vigilance and responsibility of the driver.
Activation of the system is done in the " Driving assistance " menu of the touch screen.
 Press this button to activate the function; the associated indicator lamp comes on.