Opel 2016 ASTRA Owner's Manual page 218

216 Driving and operating
When the Settings page is displayed,
select Off to deactivate alert function.
Reactivate by selecting On.
When switching on the ignition, alert
function is deactivated.
Pop-up indication is displayed for
approx. eight seconds in the Driver
Information Centre.
System reset
The content of the traffic sign memory
can be cleared in the Settings menu
of the traffic sign assistant page by
pressing and holding SET/CLR on the
turn signal lever. Upon successful
reset, a chime will sound and the
following symbol is indicated until the
next traffic sign is detected.
In some cases, traffic sign assistant is
reset automatically by the system.
Fault
The traffic sign assistant system may
not operate correctly when:
● The area of the windscreen,
where the front camera is
located, is not clean.
● Traffic signs are completely or
partially covered or difficult to
discern.
● There are adverse environmental
conditions, e.g. heavy rain, snow,
direct sunlight or shadows. In this
case No Traffic Sign Detection
due to Weather is indicated in the
Driver Information Centre.
● Traffic signs are incorrectly
mounted or damaged.
● Traffic signs do not comply with
the Vienna Convention on traffic
signs (Wiener Übereinkommen
über Straßenverkehrszeichen).
Caution
The system is intended to help the
driver within a defined speed
range to discern certain traffic
signs. Do not ignore traffic signs
which are not displayed by the
system.
The system does not discern any
other than the conventional traffic
signs that might give or end a
speed limit.
Do not let this special feature
tempt you into taking risks when
driving.
Always adapt speed to the road
conditions.