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Is anyone having a problem with their horn going off in the middle of the night? The horn will go off, I'll shut it off by using the remote lock/unlock and an hour later, it will go off again! Help!


I couldn't find any post for this issue so I'm creating one. Maybe the moderator can move it.
 

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My local dealer mentioned that they were having some issues with the glass breakage sensors in the FJC's at one point. The symptom was the alarm being set off for no apparent reason. I don't know if they replaced the sensors or simply adjusted the sensitivity level on the sensor. Have you called the dealer?
 

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It would be helpful to know what type alarm you have.

if factory...do you have the proximity sensor type or the glass breakage sensor type? (both were offered)

If aftermarket.....good luck
 

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It was installed at the dealer and called RS3200 PLUS VIP (vehicle Intrusion Protection). I'll bring it in today and see what they tell me. Thanks for the input.
 

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I had an issue with my factory alarm doing this same thing to me one night. I went out to my truck in the evening and pulled some CD's out of the stereo. Closed my truck up and armed the alarm. It sat just fine out in the driveway for about an hour and a half and then the alarm starting going off. I disarmed it with my key fob and rearmed it. It was fine for another hour then did it again. It did it several times after that as well, each time getting quicker and quicker. I finally went out and pushed the button disarming the interior sensor and it was fine the rest of the night. The next day I pushed in the button to rearm the interior sensor and it's been fine ever since. To this day I don't know what caused it and haven't had another problem with it. My guess is that the alarm didn't like me pulling CD's out of the radio without putting the key in the ignition for some reason. Who knows.
 

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Thank you Jenks, I think you are onto something there. I wish the enable/disable button had an indicator light. I'll play with this a little and if it does the trick, I'll go talk to Toyota about it.

I had an issue with my factory alarm doing this same thing to me one night. I went out to my truck in the evening and pulled some CD's out of the stereo. Closed my truck up and armed the alarm. It sat just fine out in the driveway for about an hour and a half and then the alarm starting going off. I disarmed it with my key fob and rearmed it. It was fine for another hour then did it again. It did it several times after that as well, each time getting quicker and quicker. I finally went out and pushed the button disarming the interior sensor and it was fine the rest of the night. The next day I pushed in the button to rearm the interior sensor and it's been fine ever since. To this day I don't know what caused it and haven't had another problem with it. My guess is that the alarm didn't like me pulling CD's out of the radio without putting the key in the ignition for some reason. Who knows.
 

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I had a similiar problem with my aftermarket alarm false sensing and giving off the warning chirps at random intervals. I fixed it by turning the sensitivity of the glass break sensor down, but never figured out what was actually causing it.
 

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Same thing happened to me so I took it to the dealership and they adjusted the sensitivity level and it hasn't happened since.
 

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Thank you Jenks, I think you are onto something there. I wish the enable/disable button had an indicator light. I'll play with this a little and if it does the trick, I'll go talk to Toyota about it.
The indicator should be that the red car-shaped LED in the dash lights up solid prior to arming.
 

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TGREGG:
How do you turn down the sensitivity on the glass break sensor? Seems like you did it by yourself, yes??? This darn thing's been going off all night long! HELP! : )
 

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Is anyone having a problem with their horn going off in the middle of the night? The horn will go off, I'll shut it off by using the remote lock/unlock and an hour later, it will go off again! Help!


I couldn't find any post for this issue so I'm creating one. Maybe the moderator can move it.
Try changing the battery in your remote. It worked for me. Evidently the remote was sending off erroneous signals as the battery weakened.
 

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Mine did it while driving! Disconnected the battery for a bit and reconnected. Guess it rest itself. Sometimes things get out of sequence.

Sent from my SM-J700P using Tapatalk
 
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