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post #1 of 3 (permalink) Old 04-29-2014, 12:23 PM Thread Starter
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3 Honks when Unlocking Doors with Fob

I had to replace my fob. Both died, and I purchased a new one, had the dealer program it, and all was well for a time. The other night, my alarm started going off randomly. No one was around. Also noticed that when I unlock the door with the fob, I get 3 honks. If I hit the unlock with the doors unlocked, it acts normally. Lights flash etc.
Confirmed it is not the fob as I had removed the battery for a time, and the car still was randomly going off. Is there a common issue with 08 Cobalts and alarms/ keyless entry? I do not have remote start. The fob is an aftermarket, I did not purchase it from the dealer. Not sure if that matters.
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post #2 of 3 (permalink) Old 04-29-2014, 12:50 PM
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This means your BCM is detecting a door that's ajar or hood or trunk. Doesn't mean they are but you might have a bad sensor.

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post #3 of 3 (permalink) Old 04-29-2014, 06:34 PM
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Hey cragmor,

I’m sorry to hear that you have been experiencing difficulties with your key fob. I understand that you are now experiencing a concern with the alarm of your Cobalt. I cannot guarantee anything, but I will be glad to look further into this concern for you. Please send us a private message referencing this thread if we can be of any assistance. Thank you.

Kristen A.
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Have you checked into Chevrolet Owner Center? You can maintain service history, check on warranty or recall information, and more. Visit my.chevrolet.com!
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