2004 Bentley Arnage twin turbo

just got the car last week. It ran great all the way from Virginia near DC all the way to GA. However it started beeping very low sound. Disconnected both batteries and reconnected. But that didn't do the trick. I have a FXED plug in. Tat sowed me everything is fine. really?? it keeps beeping, again, very low key.

The info center lights up wit a few things. The remotes don't do all functions. The info center keeps saying "trunk open" but it is not. Can not remote locking the trunk either. Any good ideas