Question about 2006 Chevrolet Cobalt

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2006 cobalt won't run

My 2006 cobalt was running fine, except that since I don't have the key fob the alarm would go off every time I opened the doors with the key, as soon as i turned on the ignition the alarm would go off and the car would run fine. The other day I was driving my car and it turned off while I was driving it. I have not been able to turn it on since. I believe the problem has something to do with the anti-theft system.

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  • Anonymous Apr 04, 2009

    I have a 2006 Chevrolet Cobalt and every time i open the trunk (with the key), or the doors with or without a key the alarm goes on and will not turn off until i turn the car itself on.



    Also my car locks are problems, when the car is off and parked they all lock and unlock about 3 or 5 times before finally settling on either to stay locked or to stay unlocked...how can i fix this?

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  • 11 Answers

Try unhooking the negative cable on the battery and let it sit for an hour this should reset the computer

Posted on Jan 11, 2009

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Posted on Jan 02, 2017

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1 Answer

When i open the dr of my 2006 chevy cobalt the alarm goes off i have never used the clicker or has it ever done this before


On some models you set the theft system when you lock the doors and when you manually use the key to open the door the alarms will go off. To solve this use the key fob and see if you still have the problem. I don't think you will see the problem when you use the key fob to open the doors.

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Use your keyless fob and ignition key to enable the audible chirp. The process varies considerably on different makes and models. You must usually consult your owner's manual, a dealership or the alarm manufacturer for the correct process.

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Does it have a little laser light bulb looking thing in the front of the remote that you can clean? And are you absolutely sure you put a good battery in it?
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