Just purchased an R reg Astra which seems to have high level of trim etc, as it has air con and fogs etc etc. Have read about a deadlocking and alarm mechanism on the car but sont have owners manual. When i push the little button by interior light the led on hazrd switch flashes for about 20-30 seconds then goes off. How do i activate/ or get the damn thing to work- also as it would probably answer many many many questions concerning this vehicle is there anywhere on the net where i can download a copy of the owners manual- so that i can familiarise myself with some of these buttons and things? Its all a little confucing for someone who's always had classic cars you see.