How To Lock Car With KeyThere may be a need for you to lock your car without using the remote key fob – for example if the battery runs out during use.
Unfortunately in the Astra H it is not as simple as just locking the drivers door with the key – this simply locks the drivers door and leaves the other door locks open.
To lock all the doors without the key fob – you need to close all the doors (including boot lid) and then open the passenger side front door. Reach in and press the central locking button on the dashboard then close the passenger door – all the doors will now be locked. They can be opened by simply using the key in the drivers door lock.