CITROEN 2014 C4 Picasso - Page 173

171
4
Driving
C4-Picasso-II_en_Chap04_conduite_ed01-2014
Theactivecruisecontrolusesonlyengine
brakingtoslowthevehicle.Consequentlythe
vehicleloosesspeedslowly,aswhenreleasing
theacceleratorpedal.
Thesystemispausedautomatically:
- ifthevehicleinfrontslowsdowntomuch
ortoosuddenly,andthedriverdoesnot
brake,
- ifavehiclecomesbetweenyourvehicle
andthevehicleinfront,
- ifthesystemdoesnotslowthevehicle
enoughtocontinuetomaintainasafe
distance,forexamplewhendescendinga
steephill.
Limits of operation
Astheradar'sfieldofviewisquitenarrow,itis
possiblethatthesystemmaynotdetect:
Thecruisecontroldoesnottakeaccountof:
- stationary vehicles,
- vehiclesdrivingintheoppositedirection.
- vehiclesofreducedwidth,suchas
motorcycles,forexample,
- vehiclesnotrunninginthemiddleofthe
lane,
- vehiclesenteringacorner,
- vehicleschanginglaneatthelastmoment.
Theregulationrangeislimitedtoamaximum
differenceof20mph(30km/h)betweenthe
speedsettingandthespeedofthevehicle
ahead.Abovethis,thesystemgoesintopause
ifasafedistanceisnotmaintained.
Severeweatherconditions(veryheavy
rain,accumulationsofsnowinfront
oftheradar)caninterferewiththe
operationofthesystem,resultingin
thedisplayofthemessage"SYSTEM
INACTIVE:Visibilityreduced".The
functionremainsunavailableuntilthe
messagedisappears.