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Cobalt This sporty compact was faced with the difficult job of replacing the popular Cavalier, but whether the base model, or the supercharged SS is chosen, is has made for a great replacement.
Platform: Delta
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  #1  
Old 01-08-2010, 09:53 AM
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Default 2005 Chevy Cobalt - disable theft alarm for key use?

Hello, I've got a 2005 Chevy Cobalt and I'm wondering how I can disable the anti-theft alarm that activates whenever a key is used to open the car door or trunk. My key fob hardly works and I'd like to be able to use my key to open my own car without attracting the attention of everybody around. Is there a way to set the alarm to a sane mode?
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Old 01-11-2010, 05:43 PM
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They have removed the wiring to disarm the alarm by the use of the key due to people popping the locks and disabling the alarm.

The only way to disarm the alarm is to either use your key fob, or turn the key in the ignition
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Old 01-12-2010, 11:09 AM
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Yeah, can't have vehicle owners disabling their own alarms. This turns up two questions, then...
1) What will I do once the fob's died and I'm trying to start my car in one of those instances where the key will not start the car because the alarm won't stop? It's done that before and the only way to disable the alarm was through the remote. The key would NOT start it or disable the alarm.

2) What is the meaning, in the little computer dashboard display, of the Security setting options? I think it offers normal and RKE. What exactly are the effects of these settings; would that help me out at all?
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Old 01-12-2010, 08:22 PM
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If the alarm does not turn off when you trun the key on, you have an issue with either your key, or the ignition switch\theft deterent module


As stated in your owners manul regarding the security setting option:

Quote:
SECURITY

If your vehicle has the remote keyless entry system, this feature allows you to select the method used to arm the vehicle's security system. When SECURITY appears on the display, press the reset button to scroll through the available settings:
RKE (Remote Keyless Entry) (default): The content theft-deterrent system will arm when the lock button on the remote keyless entry transmitter is pressed or when the power door lock switch is pressed.

PASSIVE: The content theft-deterrent system will arm itself 60 seconds after the ignition has been turned off and all of the doors have been closed.


See Content Theft-Deterrent for more information.
Choose one of the available settings and press the information button to select it and move on to the next feature.
One way to lock the vehicle and not arm the alarm is to manually push down on the locks. Don't use the remote, or the lock switches inside the vehicle
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Old 01-13-2010, 02:35 PM
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Hello,
My girlfriend had the same issue as you are describing. The first time it happened both key fobs' failed and she was tired of the alarm going off so she took the car to our local chevy dealer (extended GM warranty) and they replace the alarm and gave her 2 new key fobs'. After about 6 months they started to fail again so on a hunch I took the fobs' apart and in both fobs' the contacts that had hold the battery in place had come apart. I soldered both fobs' solder points and I only needed a tiny bit of solder to reattach the points and to provide a little extra strength. I was looking for an explanation to the "key fob low batt" warning today and came across a site that explained exactly what I went through and also across this page. Here is the link, hope this helps your problem-

http://www.rfcafe.com/references/ele...b-teardown.htm

-Scott
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Old 01-13-2010, 02:35 PM
 
 
 
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1999, 2005, alarm, antitheft, chevy, cobalt, colorado, dead, disable, disabled, door, fob, key, opening, silverado, start, suburban, system, truck


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