I have a 14 plate Mokka and the alarm will go off sometimes. It's not an often thing but definitely had a few bouts of this.
Thoughts/observations:
If this happens I sometimes just use the blipper to unlock/lock - but I think it might work better to go out, open/close a door then lock? Is that a waste of time?
Is my battery going dud? (No issues starting though)
Have read on the web that it could be a fly in there? Checked that.
Always check doors just in case the kid left one ajar.
As far as I know she's not overly sensitive to cars going by. This has happened in the small car part at the back of my house as well so not cars wooshing past.
Might sound stupid but anecdotally worse in warm weather (that I can remember, not seen the sun in months :))
Any general tips or likely reasons for this?