2001 Altima Alarm Sounds For No Reason

[Deepak528]

I own a 2001 Altima GLE Limited Edition. It apparently has two horns (and possibly 2 alarms?), I think. The alarm annoys me, so I used the button under the hood to disable it so that now I see a solid red light letting me know it's disabled. To the right of that red light is a another light which blinks every 3 seconds.

Anyways so now I don't hear the alarm whenever getting out or in the car. When I lock my car it honks and flashes. Every now and than, about 1-2 times a week, the car's alarm would just go off for no reason. I would have to press the "lock" button on my remote to unlock it. So far whenever it has gone off I have luckily been within a close distance.

I suspected the battery terminals. 2 weeks ago it refused to start and once i pulled the keys out of the ignition, a VERY quiet alarm starting sounding. I messed with the terminals and the car started fine.

Now I need to figure what's causing the car alarm to go off and if there is a way to completely shut down the alarm.

Thanks.

[IH8SPM]

Find the brain of the aftermarket alarm and unplug it. This should disable the alarm but make sure it is not armed or going off while you remove it.