Technical Alarm not deactivating off key

[Andymacselespeed]

My car alarm went off for the very first time today. I always set it with the remote, usually 2 presses to deadlock.

Anyway, it went off today, I suspect because something on the large pile of baby paraphanalia on the back seat fell over!

Anyway, I heard it, the siren was wailing, the indicators were flashing etc.

Nipped outside with remote key, pressed the unlock button, car unlocks but keeps on sounding. I press the lock button, siren carries on, doors all lock. Hit unlock again, held it down this time, all the doors unlock and then all the windows wind down. Still the alarm sounds. After about 20 seconds, the alarm stops momentarily, then goes off for a maybe another 20 seconds more, then stops. While the alarm is going off, I get in the car, put key in ignition, and turn the car on, it passes self check okay with no errors or anything, while the alarm is happily sounding.

I popped the bonnet, disconnected the battery, went indoors and had the rest of my dinner.

Went back out about an hour later, hooked up the battery, reset the clock and locked the car with key in door.

I have no problem with the alarm going off, but I don't fancy being unable to turn it off if it goes off at night.

The alarm unit was replaced by FIAT when I bought the car last September as it gave the 'alarm failure, return to dealer' message every time I turned the car on.

An opinions, views or thoughts on this one?

Should it turn off with remote key?

If so, which button?

Should it give you a message when it has gone off? (Even my old Sierra blinked the alarm light in a set pattern when you got in to tell you the alarm had gone off and what had set it off! And that was a dinosaur!)

Cheers

Andy

 

[Morty Mort]

Hi.

I've got a DEFA alarm and not the factory fitted OEM. I am very satisfied with the DEFA alarm, but there is one option where it isn't compatible, and that's in the "MENU" of the car.

If the car (through the menu) is set to unlock only the driver's door, and not all 5 doors at the same time, the alarm will not shut off.

So opening the driver's door always ended with a sirene - impossible to shut off. The car would start, so the immobilizer was disabled.

Solution was to disable that function and let all doors open at the same time with the remote key (standard unlock button).

Not sure if it was helpful, but I thought I was going mad. And... it was not very wife compatible either, having the alarm set off every time she went shopping etc. And who gets the blame?

M.

 

[Argonought]

Should it give you a message when it has gone off? (Even my old Sierra blinked the alarm light in a set pattern when you got in to tell you the alarm had gone off and what had set it off! And that was a dinosaur!)

Assuming you have the factory fit alarm then it should give info about the 'event' on the dash.

You can easily prove this of course.

 

[Andymacselespeed]

It's factory fit I assume. Was messed about with by fiat dealers a while ago. Assume it's not been changed to a different make.