[somerset_lad]

I have been having an issue with the alarm which goes off randomly when I lock the car. I've tried the keyfob double press (disable tilt sensor), had the battery tested, checked the door switches. Still no luck.
I am wondering if the internal battery on the siren is at fault.
I cannot find any information regarding the location / removal of the Siren.
Any info/help would be gratefully appreciated.Thanks

[Hoa]

Looks like it is on the right side of the rear bumper. TIS says it need to be programmed after replacement

[somerset_lad]

Thanks for the reply

[RRog46]

Hi, I realise that this post is a couple of years old but curious as to if changing the siren solved the problem?

I have a similar issue, sporadic alarm sounding. It started at about the same time as I got notification of overnight battery drain, wasn't sure which was causing which so replaced the battery a couple of months ago.

Just got round to installing ISTA+ and have registered the new battery but problem persists. I had error code 801A4B SINE: undervoltage which I've cleared, again not sure if that was linked to the old battery but the associated mileage suggests not.

Has anyone seen / resolved this issue?

Thanks

[tariksayel]

I have the same issue 😔
Any one can help

[maja]

Hi. Same here. Did the siren change solved the issue?