Poxy alarm!

[Octavia Nik]

Could anyone tell me why my alarm goes off randomly? Nats V2 system, doors are all locked, fob is coded correctly... And yes the windows are shut lol

Thankies peeps

 

[kitchenman]

Had that on a Citroen CX,
Shut the heater fresh air intake, with it open passing cars can cause a drop in pressure inside, ultra sonics see the drop & get all exited

 

[terranosauruschris]

Haven't had my truck long enough to be familiar with this one, but in a previous life had a Frontera with identical problem...turned out to be the power sounder which goes off when some tea-leaf disconnects the battery....it has a built in power supply of its own, which when it packs up, gives you megawatts of racket, usually in the middle of the night!
The sparkies among us will know more than I do, but it might be a start.
Hope this helps:thumb2