Vauxhall Astra GTC Owner's Manual page 16

Push lever.
Washer fluid is sprayed on the rear
window and the wiper wipes a few
times.
Climate control
Heated rear window, heated
exterior mirrors
The heating is operated by pressing
the Ü button.
Heated rear window 3 31.
In brief
Demisting and defrosting the
windows
Press button V.
Set the temperature control to the
highest level.
Cooling n on.
Heated rear window Ü on.
Climate control system 3 112.
15