Chrysler 300, 300C & 300C SRT-8 The flagship of the Chrysler lineup offers the driver every bit of class of any European luxury sedan, combined with the availability of the Hemi, the engine which dominated the American Muscle Car Era

2005 300 - Alarm Continually Arms Itself

Old 01-14-2016, 10:36 AM
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Join Date: Jan 2016
Posts: 2
Default 2005 300 - Alarm Continually Arms Itself

I've searched far and wide and can't seem to find anyone with this problem. As soon as the key is out of the ignition the car begins to randomly arm itself. Horn beeps, doors lock. Random intervals but if the key is near the car it will continue to beep and lock.

I already re-soldered the battery tray, hoping that would fix the problem but no such luck. This is my GF's car that just moved from MA to TX. Her dad is a mechanic and couldn't get it fixed so I'm hoping you can help me be a hero.

Windows also don't roll down, but that is a different thread and wont be an issue until spring.

Old 01-14-2016, 07:59 PM
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Join Date: Mar 2006
Location: Norcross GA
Posts: 8,115

have u had a good scanner put on it look at the security system see what arms it last?
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