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Lexus IS Alarm Problem.. - Printable Version

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Lexus IS Alarm Problem.. - Davros - 02-09-2017

Hey guys, I was hoping someone could help me.

I’ve just noticed a problem with my car alarm, and remember reading a post about it on another forum, but it seems that the post has been removed.



My car alarm went off today, but the sounder in the boot was so extremely quiet, it took me a while to work out that it was my car alarm that was going off.

I then set my alarm off on purpose to see if it was a one off fluke, but again it was still wasn’t working properly

Does any one remember why this is happening, and how to go about fixing it ?

Many thanks !!

Dave !


Lexus IS Alarm Problem.. - Saraj - 02-09-2017

To be honest this has reminded me about my IS200, the alarm was so low in volume I thought it was like that standard.

I went to shop once with my son in the car, I didnt realise that by pressing the lock once, activated all alarms and senses, and twice turns the internal ones off, i thought it was the opposite, so my son was in the car, so i only pressed it once,

the alarm went off and I didnt realise until i got out of the shop and my son was screaming his head off as the alarm was on.


Lexus IS Alarm Problem.. - parthiban - 02-09-2017

The alarm is just the horn isn't it? I think that's what it is on mine.......


Lexus IS Alarm Problem.. - Davros - 02-09-2017

parthiban The alarm is just the horn isn't it? I think that's what it is on mine.......


Nope...

There is a separate sounder in the boot behind all the lining.


Lexus IS Alarm Problem.. - Andy-R. - 02-09-2017

It's both isn't it, didn't you hear the horn? whenever I hear an alarm that sounds like a horn I check my car just incase.


Lexus IS Alarm Problem.. - Davros - 02-09-2017

Saraj To be honest this has reminded me about my IS200, the alarm was so low in volume I thought it was like that standard.

I went to shop once with my son in the car, I didnt realise that by pressing the lock once, activated all alarms and senses, and twice turns the internal ones off, i thought it was the opposite, so my son was in the car, so i only pressed it once,

the alarm went off and I didnt realise until i got out of the shop and my son was screaming his head off as the alarm was on.


Soooo.....what ?



Was it working properly ?

If not did you fix it ? if so how ?

Otherwise i'm confused to how this is meant to help me ?


Lexus IS Alarm Problem.. - Davros - 02-09-2017

Andy-R. It's both isn't it, didn't you hear the horn? whenever I hear an alarm that sounds like a horn I check my car just incase.

Hmmm...not sure TBH.

I've got a bit of a problem with my horns at the moment, so they did sound with the alarm.


Lexus IS Alarm Problem.. - Saraj - 02-09-2017

Davros Soooo.....what ?



Was it working properly ?

If not did you fix it ? if so how ?

Otherwise i'm confused to how this is meant to help me ?

never had the chance to look at it, crashed it a week after !


Lexus IS Alarm Problem.. - spikes - 02-09-2017

parthiban The alarm is just the horn isn't it? I think that's what it is on mine.......

must say ive only ever noticed the horns on mine !Huh


Lexus IS Alarm Problem.. - Davros - 02-09-2017

spikes must say ive only ever noticed the horns on mine !Huh


Well trust me there is a sounder in the boot, and even though it was going off, it was really quiet. You would only hear it when are standing next to it, and with your ear near to the boot.