HI there, I've looked through all the posts on this and I haven't found a solution to my problem ... A couple of days ago my remote locking stopped working. I have a UK 2005 T4 Prius, and so have the black remote (only remote lcoking and unlocking, not keyless entry). I have checked that all the doors are shut (several tmes!), and have fiddled with the switch below the teering wheel. However I think this may be the problem - the switch does not stay in - which according to the manual is the position for the remote locking to be "on". Whenever I npress it the locking light on the dashboard flashes quickly until I put the ignition key in. Any thoughts? Otherwise its in to the dealer on Tueday... Cheers, Jon