Car alarm sounding randomly

[Amcintyre]

2 days ago I was driving and my car alarm started going off. Key unlock/lock or restarting engine didn't stop it, it goes off on its own after couple of minutes or if I unlock door with key but restarts seconds later if I do it that way. It also goes off randomly when locked on the drive butstops if I unlock and relock with button on keys. Rac has plugged into fault tester. No fault code found all green. Checked car battery which is fine. Cleaned bonnet latch as advised by rac.

Can anyone help?
Nissan quashqai 60 plate.

[Doug99]

Try disconnecting your internal movement sensors.

[Squashy2]

Try a hard reset, undo the negative terminal on the battery, wait a a good 15 minutes (no more than 30 minutes)
and reconnect the battery.
This should work, if not it's a trip to your local Nissan Dealership to diagnose your issue!