Operation Manual

132 Safety systems
Rollover protection system 3
The Astra TwinTop is equipped with
rollover protection with reinforced
windscreen frame and anti-roll bars behind
the rear seat head restraints. Depending
on the variant, the anti-roll bars are either
fixed or deploy automatically in the event
of an impact of a certain severity. The
subsequent description only regards the
variant with automatically deployed anti-
roll bars 3.
In the event of a rollover, the anti-roll bars
deploy upwards in a matter of
milliseconds. They also deploy together
with the front and side airbag systems 3,
helping to optimise occupant protection.
The system deploys whether the roof is
open or closed. Roof operation is not
possible if the anti-roll bars are extended.
Control indicator v for anti-roll bars
The deployable anti-roll bars are
monitored electronically together with the
belt tensioners and the airbag systems.
Their operational readiness is indicated by
control indicator v in the instrument panel.
When the ignition is switched on, the
control indicator illuminates for approx. 4
seconds. If it does not illuminate, does not
go out after 4 seconds or illuminates whilst
driving, there is a fault in or deployment of
the anti-roll bars, belt tensioners and
airbag systems – page 113. The systems
may fail to trigger in the event of an
accident.
Deployment of the anti-roll bars is
indicated by continuous illumination of v.