We have had a problem that started on Wednesday afternoon. The central locking system on several cars within a small area are experiencing problems with the remote central locking system. This has affected around 7 cars. When the cars are moved to locations outside this area the remote locking system works. We have spoken to the police, local housing office and looked on various forums. We have tried suggestions online to no avail. We have ruled out a fault with batteries on remotes and models of cars. We think it might have something to do with a mast or power surge. We hope BT can provide a solution.