Boot unlocking while driving - 2006 Ford Focus

This started happening last night.

After driving a short distance the boot unlocks itself. It also seems to be happening when I turn off the ignition.

I now have to lock all doors as soon as I start the car. When I do this I have also noticed that when I turn off the ignition & open the driver door (which unlocks all of the doors as normal) I cannot open the boot, I have to use the release button on the remote.

Anyone any ideas of what's causing this?

There's a fair chance its the electrical actuator mechanism in the lock itself (it may be a short due to dampness). You need an auto-electrician (or maybe a tin of WD40 spray).

same thing happened with my car (mondeo) i brought it to my mechanic and he got some small electrical part for it.small job he said and it was fixed quickly

Thanks for the replies. It hasn't happened in the last 2 or 3 days, so must have been some sort of glitch as I haven't been doing anything differently.

Am due to get a service soon so I'll ask them to have a quick look.

Thanks again.