I replaced the battery in my 2009 fiesta 1.4 titanium yesterday and ever since, the alarm has been going off (maybe every 2 hours?) and I think my neighbours hate me...
I've slammed the doors, bonnet and boot shut to make sure they weren't slightly open or anything, but it hasn't helped. Everything else works, the radio, windows, lights etc and it drives perfectly so I'm not really sure what could be causing it. As I mentioned, I changed the battery yesterday, maybe there is a step I missed where I need to let the car know somehow?
I've had the suggestion to double check and clean the ground connection, but the car runs ok so I'm not 100% sure if that's the issue.
Any help would be appreciated greatly!