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Discussion Starter · #1 ·
Has anyone else noticed that the factory alarm is super sensitive to noise and vibration? Cars that drive by with loud exhaust systems set it off. I kept thinking people were getting too close admiring it and I would return to the attempted break in message. Today while sitting in my driveway with the key in the house, my neighbor fired up his loud car which he loves to rev for at least 10 minutes before leaving, and it was set off twice in that span. Anyone else having a similar issue or is there a way to decrease the sensitivity without totally disabling it?
 

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I am not sure what sets mine off, but almost every day after work I am greeted with "car break-in attempt detected". I will probably take it for diagnostic to see what sensor is causing this.
 

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Hi edmoiler13 and maraca,

Have you brought this concern to the attention of your dealer? Please send us a private message if you decide to take your vehicle in to have this addressed.

Darlene
Alfa Romeo Care Specialist
 

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There are some adjustments in the coding which effect the sensitivity. The dealer *should* be able to turn down the sensitivity.
 

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I think there are actually a couple problems we're dealing with.

Accidentally setting the panic alarm off while carrying the key in your pocket and the sensitivity set to high from Alfa for the car alarm.

I had my dealer lower the sensitivity on the alarm to I think 20.

As far as the panic alarm, the only way I've stopped it is removing the key from my pocket when I sit down. And no, I don't wear skinny jeans.

If I remember right you can tell the difference either by sound or you have to push the panic button again to stop the panic alarm compared to pushing any button to stop the regular alarm.

Hope that makes sense.
 

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Has anyone else noticed that the factory alarm is super sensitive to noise and vibration?

Hi, were you able to figure this out and resolve it yourself in some way or did it have to go to the dealer for service. Mine goes off almost nightly (2018, just bought in July) and my neighbors are not loving it. I'm afraid any dealer visit gets me no car for at least 2-3 days but will endure if that's the only solve. Seems like lowering sensitivity is likely in order but wondering current status of your issue. Thanks.
 

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dealer can easily adjust (turn down) the sensitivity of the ultrasonic alarm (between 30% and 130%) and tilt sensors (between 1,3 % and 0,8 % ), using the Witech tool. Only couple of minutes work ;)
 

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apparently, according to Macgeek, there has also been an update to the early alarms involving a replacement ceiling light dome (containing the sensors)

Macgeek:
Modified alarm units to prevent/mitigate this issue have been adopted in production from March 19th. Owners of older cars who are experiencing the problem can refer their dealer to Service News 55.012.18, which has been published a couple of days ago. You'll get a new front light dome/volumetric alarm sensors assembly.
 

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I've had mine go off one night with no apparent reason. I was watching a movie and managed to turn the outside light on and get out of the house in less than 20 seconds, nobody around, I have no idea what set it off (no loud cars driving nearby either).

A loud and windy storm set it off a couple of weeks ago, but that's to be expected.

Other than that, I did get greeted by the "break-in attempt detected" warning a couple of mornings, hard to tell if the warning was justified or not.

Slightly related: does anybody find the sound level low? I have the premium alarm system and I have to admit I was surprised by how weak it sounded. The horn honking triggered by the panic button (had a couple of those accidents, too) is significantly louder, it would definitely wake me up (unlike the alarm sound).
 

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I......
Slightly related: does anybody find the sound level low? I have the premium alarm system and I have to admit I was surprised by how weak it sounded. The horn honking triggered by the panic button (had a couple of those accidents, too) is significantly louder, it would definitely wake me up (unlike the alarm sound).
I think there are actually 2 levels. A sort of pre-alarm, less loud, and a full on alarm.
 

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I think there are actually 2 levels. A sort of pre-alarm, less loud, and a full on alarm.
Ah, interesting, didn't let it go for more than 30 seconds or so. I'll have to do some reading on this, or take her to a remote spot and experiment a bit.
 

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Discussion Starter · #13 ·
Hi, were you able to figure this out and resolve it yourself in some way or did it have to go to the dealer for service. Mine goes off almost nightly (2018, just bought in July) and my neighbors are not loving it. I'm afraid any dealer visit gets me no car for at least 2-3 days but will endure if that's the only solve. Seems like lowering sensitivity is likely in order but wondering current status of your issue. Thanks.
I had not taken my car in and figured I would wait until fall when I get it's oil changed before I put it away for winter. It's good to see the fix is easy though. Keep me posted how your trip to the dealer turns out.
 

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I am going to test the MES software on my laptop to see if we can access the alarm settings over OBDII bluetooth. Even then it may be read only. I'll install it tonight after my "hot date" going grocery shopping by myself on a Friday night. Old widower bachelor :D
 

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Keep me posted how your trip to the dealer turns out.

Post-service update: Tech verified random/intermittent alarm activation, checked BCM for anti-theft info and found that the ultrasonic sensors were the cause (found star case s1708000250 with similar issues). He removed the UAM to inspect and saw that the volumetric sensors were improperly fitted into the UAM. The UAM was replaced with an updated model per TSB 55.012.18, which I recommended they look at, based on info from MacGeek - mentioned here by jwq2...Thanks! Maybe overkill but he also dialed down the ultrasonic setting to 60%. They left the tilts at 1.3 so we'll see about that but with the improper fit issue identified, new part installed and ultrasonic sensor reduction, I'm hoping it's fixed. Took 3 days overall because the part wasn't ordered on day 1, so it would have taken 2.


Also - unrelated to this thread but another topic floating around...he updated my IPC, which apparently allows for the aux power to be on while refueling without freezing the fuel gauge, which I had happen recently. Lastly, my car is an '18 model, with a 10/17 build date. Appreciate all the support here and fingers crossed that I'm done waking the neighborhood (at least with an alarm - starting the car early in the morning...that's another story:wink2:).
 

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Discussion Starter · #16 ·
great to hear it wasn't an ordeal to get corrected for you. thanks for the update
 

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dealer can easily adjust (turn down) the sensitivity of the ultrasonic alarm (between 30% and 130%) and tilt sensors (between 1,3 % and 0,8 % ), using the Witech tool. Only couple of minutes work ;)
Do you know how to adjust the sensitivity of the front radar sensor with multiecuscan?
 

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Has anyone else noticed that the factory alarm is super sensitive to noise and vibration? Cars that drive by with loud exhaust systems set it off. I kept thinking people were getting too close admiring it and I would return to the attempted break in message. Today while sitting in my driveway with the key in the house, my neighbor fired up his loud car which he loves to rev for at least 10 minutes before leaving, and it was set off twice in that span. Anyone else having a similar issue or is there a way to decrease the sensitivity without totally disabling it?
Heavy rain or hailstones sets mine off.
 
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