Rollover protection system
To optimise safety in the event of a
rollover, the Astra TwinTop is equipped
with reinforced windscreen frame and
anti-roll bars behind the rear seat head
restraints.
The anti-roll bars are fixed or deployable
depending on vehicle variant.
Fixed anti-roll bars are secured to the
vehicle bodywork (see illustration).
Deployable anti-roll bars 3
Located between the rear head
restraints and the boot lid in such a way
that they are out of sight. In the event of
a rollover, head-on collision or side
impact, the anti-roll bars deploy
upwards within milliseconds.
The convertible hardtop must not be
operated if the anti-roll bars have been
deployed. A continuous warning will
sound if the switch is actuated.
The airbag control indicator
v
illuminates if the anti-roll bars have been
deployed.
Wind deflector 3
With the wind deflector installed,
turbulence, draughts and noise in the
passenger’s compartment are reduced
when the roof is open.
The rear seats cannot be occupied when
the wind deflector is in place.
Place no objects on the wind deflector.
The wind deflector is folded together in a
stowage compartment 3 in the luggage
compartment beneath the floor hatch.
If vehicle is fitted with a spare wheel 3,
the wind deflector is in the luggage
compartment.
For instructions on how to fit and remove
wind deflector, see Owner’s Manual.
Indicator and warning buzzers
z Indicator buzzer upon completed
opening or closing of the convertible
hardtop.
z Indicator buzzer upon completed
raising or lowering of the luggage
compartment loading aid.
z Gong tone if the boot lid is not closed
during roof operation.
z Gong tone if the boot lid is not fully
opening during operation of the
luggage compartment loading aid.
z Gong tone during roof operation
if vehicle speed exceeds 20 mph
(30 km/h).
z Gong tone when vehicle speed
exceeds 20 mph (30 km/h) if the roof
is not fully open or closed.
z Three gong tones during roof or
loading aid operation if the luggage
compartment blind is not attached.
z Three gong tones during roof
operation if outside temperature is
below –20 °C, vehicle battery voltage
is too low or the system is overloaded.
z Continuous warning buzzer during
roof operation if the anti-roll bars 3
have been triggered.
z Continuous warning buzzer starting
one minute before the end of the
9-minute standby time with the roof in
an intermediate position.
z Continuous warning buzzer starting
one minute before the end of the
9-minute standby time with the
luggage compartment loading aid in
a raised position.
Tyre pressures (psi) for loads of
up to 3 persons.
Engines Tyres Front Rear
Z 16 XER, All except below 30 30
Z 18 XER 225/40 R 18 33 30
Z 16 LET All except below 33 30
225/40 R 18 36 33
Z 19 DTH All except below 33 30
225/40 R 18 36 33
Temporary spare wheels
All T 115/70 R 16 61 61
Tyre pressures (psi) ECO* for loads of
up to 3 persons.
Engines Tyres Front Rear
Z 16 XER 205/55 R 16 36 36
225/45 R 17 36 36
Z 18 XER 205/55 R 16 36 36
225/45 R 17 36 36
* To achieve the smallest amount
of fuel consumption possible.
Not for use with run-flat tyres.
Tyre pressures (psi) for
full loads.
Engines Tyres Front Rear
Z 16 XER, All except below 32 38
Z 18 XER 225/40 R 18 35 41
Z 16 LET All except below 35 41
225/40 R 18 38 44
Z 19 DTH All except below 35 41
225/40 R 18 38 44
Temporary spare wheels
All T 115/70 R 16 61 61
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