Alarm keeps going off.

[gmonag]

The internal battery in the siren is prone to leaking and ruining the circuit board. It might be salvagable if you have the soldering skills but probably a new siren required.

[Clan]

Originally Posted by Desseardo

Hi, in the last month the alarm goes off possibly once a week on my 2011 XC90.
I try and remember to turn off the interior sensor off on the dash sometimes but obviously that’s not the answer. The windows are closed and there’s no insects inside to set it off.
Would connecting up to a Vida thing find out if there’s a dodgy sensor?
By the way no ones trying to steal it, as I’ve checked on the cctv every time.
Any help would be appreciated.

Regards
Jamie.

The most likely thing is the mass movement sensor for the rear , but the cause has to be read out first ...