Vauxhall 2010 Astra Owner's Manual page 140

Activation
The lane departure warning system is
activated by pressing the ) button.
The illuminated LED in the button
indicates that the system is switched
on. When the control indicator ) in
the instrument cluster illuminates
green, the system is ready to operate.
The system is only operable at
vehicle speeds above 37 mph and if
lane markings are available.
When the system recognizes an
unintended lane change, the control
indicator ) changes to yellow and
flashes. Simultaneously a chime
sound is activated.
Deactivation
The system is deactivated by
pushing ) button. Deactivation is
indicated by a message in the Driver
Information Center.
At speeds below 37 mph the system
is inoperable.
Driving and operating
Fault
The lane departure warning system
may not operate properly when:
■ the windscreen is not clean
■ there are adverse environmental
conditions like heavy rain, snow,
direct sunlight or shadows
■ no lane marking can be detected
If the lane departure warning system
detects one of these conditions, the
control indicator ) illuminates yellow.
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