192 Driving and operating
Activation
The lane keep assist is activated by
pressing a. The LED in the button
illuminates to indicate that the system
is switched on.
When the control indicator a in the
instrument cluster illuminates green,
the system is ready to assist.
The system is operational at vehicle
speeds above 60 km/h and if lane
markings are available.
The system gently turns the steering
wheel and the control indicator a
changes to yellow, if the vehicle
approaches a detected lane marking
without using the turn signal in that
direction.
The system alerts by flashing a
together with three chimes, from the
respective direction, if the lane is
departed significantly.
The system is only operable when a
lane marking is detected.
If the system only detects lane
markings on one side of the road, it
will only assist for this side.
Lane keep assist detects hands-free
driving. In this case a message in the
Driver Information Centre pops-up
and a chime sounds as long as lane
keep assist detects hands-free
driving.
Deactivation
The system is deactivated by
pressing a; the LED in the button
extinguishes.
The system is reactivated the next
time the vehicle is switched on.
Fault
The system performance may be
affected by:
● windscreen not clean or affected
by foreign items, e.g. stickers
● close vehicles ahead
● banked roads
● winding or hilly roads
● road edges
● roads with poor lane markings
● sudden lighting changes
● adverse environmental
conditions e.g. heavy rain or
snow
● vehicle modifications, e.g. tyres
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