Re: GTV Red Fob key with single black button
I have the same issue and the car should make a single beep as well as flash the hazards on locking ....and a double beep and flash the hazards twice on opening (could be the other way round) I know this because mine used to. I recently bought some new keys and a new receiver unit (fitted inside the interior light cluster). I then got the local Alfa garage to program it so they talked to each other, the central locking worked and the lights and sound didn't. I was running short on time and was not really that bothered as I wasn't charged so I left. However it would in retrospect be better to have the lights at least and I am planning on taking it back.
I too have a red key with the button on the key which I believe is a general indication of a import. I also read (on AO) because it is a import and the Alfa garage uses the chassis number to id your car they may have set the alarm to a European setting and not English which includes the sound .... I am yet to test this theory but I know mine used to work so it has to be a simple programming issue.