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General Challenger Discussion This section contains general discussion about the Dodge Challenger. If it does not fit into a more specific area, it probably belongs in here. (Dodge Challenger General Discussion)

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Old 01-20-2010, 04:29 PM
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I may have a solution for anyone having this issue. I work for the company that makes the FOBIKS. We have had quite a few warranty FOBIKS returned lately for this issue. The trunk opens by itself, or the doors lock/unlock themselves, even the windows roll down.
After analyzing these parts, we were able to figure out what was causing these "Hauntings".

Here's the issue,
The FOBIK has a rubber mat with the button graphics on it. If you open your FOBIK, the bottom side of the rubber mat has metal discs called "Snap Domes". The sanp domes are what give each button that snap feel when you press it. Each of these snap domes are made of stainless steel, coated in a black carbon paint to give them extra conductivity. When you press the button, the snap dome completes the circuit for that button and the FOBIK transmits.
The issue is that sometimes a small piece of the carbon coating can break away from the stainless steel and get trapped under the snap dome. Even a very, very small piece of this is enough to create this problem.
Because the carbon material is very conductive, and it is trapped beneath the snap dome, it can complete the circuit very easily and make the FOBIK transmit. Depending on which button this happens to, this can create a variety of issues.
If this phenomenon occurs beneath most buttons, the outcome is very predictable but is most annoying when it happens beneath the Unlock button. That can randomly unlock the car, but also can make your windows roll down. Not good if it's raining out.

The FIX is very simple. Just open up the FOBIK, and use a q-tip and wipe both the PCB where the snap domes make contact, and also wipe off the underside of the snap domes. Remove any loose black residue. Once gone, the problem should go away as well.
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Old 01-20-2010, 04:37 PM
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Originally Posted by WVU Hemi View Post
I think my 09 R/T is haunted, 3 times in about a week I have went into the garage and the trunk lid is popped open. It is put away for the winter, there is nobody around, the key fob is in a drawer and it is coming open on its own? Anybody else seen this? Is it mpossible that my daily driver (Honda Accord) or a neighbor has the same frequency as the Challenger? Got me puzzled.
This is happening to mine also. 2009 R/T
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Old 01-20-2010, 04:46 PM
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The "snap-dome" fix sounds like the solution to your problem. If that doesn't cure it, I would either remove the trunk light bulb or disable the switch to prevent it from draining your battery.
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Old 01-21-2010, 04:38 AM
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All is takes is a bunch of coins in your pocket or other keys on the ring while in your pocket to depress the button. Look at your FOB. The bottons on the Challenger fob are raised. Except for the panic button. It does not take much to depress the button and you will - open the windows, open the trunk, unlock your doors. But almost never set the panic mode.
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Old 01-21-2010, 05:41 AM
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Originally Posted by STONEWHITE R/T View Post
All is takes is a bunch of coins in your pocket or other keys on the ring while in your pocket to depress the button. Look at your FOB. The bottons on the Challenger fob are raised. Except for the panic button. It does not take much to depress the button and you will - open the windows, open the trunk, unlock your doors. But almost never set the panic mode.
I cant count the number of times I get into my car, sit down and hear the trunk open....

I now carry my keyfob in my jacket or shirt pocket.
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Old 01-21-2010, 04:36 PM
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Originally Posted by Firebird2000 View Post
I may have a solution for anyone having this issue. I work for the company that makes the FOBIKS. We have had quite a few warranty FOBIKS returned lately for this issue. The trunk opens by itself, or the doors lock/unlock themselves, even the windows roll down.
After analyzing these parts, we were able to figure out what was causing these "Hauntings".

Here's the issue,
The FOBIK has a rubber mat with the button graphics on it. If you open your FOBIK, the bottom side of the rubber mat has metal discs called "Snap Domes". The sanp domes are what give each button that snap feel when you press it. Each of these snap domes are made of stainless steel, coated in a black carbon paint to give them extra conductivity. When you press the button, the snap dome completes the circuit for that button and the FOBIK transmits.
The issue is that sometimes a small piece of the carbon coating can break away from the stainless steel and get trapped under the snap dome. Even a very, very small piece of this is enough to create this problem.
Because the carbon material is very conductive, and it is trapped beneath the snap dome, it can complete the circuit very easily and make the FOBIK transmit. Depending on which button this happens to, this can create a variety of issues.
If this phenomenon occurs beneath most buttons, the outcome is very predictable but is most annoying when it happens beneath the Unlock button. That can randomly unlock the car, but also can make your windows roll down. Not good if it's raining out.

The FIX is very simple. Just open up the FOBIK, and use a q-tip and wipe both the PCB where the snap domes make contact, and also wipe off the underside of the snap domes. Remove any loose black residue. Once gone, the problem should go away as well.
These are the kind of posts that make this forum simply awesome

A big thank you to Firebird2000
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Old 01-21-2010, 04:51 PM
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You are very welcome. Happy to help.
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Old 01-21-2010, 05:10 PM
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Originally Posted by Firebird2000 View Post
I may have a solution for anyone having this issue. I work for the company that makes the FOBIKS. We have had quite a few warranty FOBIKS returned lately for this issue. The trunk opens by itself, or the doors lock/unlock themselves, even the windows roll down.
After analyzing these parts, we were able to figure out what was causing these "Hauntings".

Here's the issue,
The FOBIK has a rubber mat with the button graphics on it. If you open your FOBIK, the bottom side of the rubber mat has metal discs called "Snap Domes". The sanp domes are what give each button that snap feel when you press it. Each of these snap domes are made of stainless steel, coated in a black carbon paint to give them extra conductivity. When you press the button, the snap dome completes the circuit for that button and the FOBIK transmits.
The issue is that sometimes a small piece of the carbon coating can break away from the stainless steel and get trapped under the snap dome. Even a very, very small piece of this is enough to create this problem.
Because the carbon material is very conductive, and it is trapped beneath the snap dome, it can complete the circuit very easily and make the FOBIK transmit. Depending on which button this happens to, this can create a variety of issues.
If this phenomenon occurs beneath most buttons, the outcome is very predictable but is most annoying when it happens beneath the Unlock button. That can randomly unlock the car, but also can make your windows roll down. Not good if it's raining out.

The FIX is very simple. Just open up the FOBIK, and use a q-tip and wipe both the PCB where the snap domes make contact, and also wipe off the underside of the snap domes. Remove any loose black residue. Once gone, the problem should go away as well.
Great info Firebird, Thanks!
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Old 01-21-2010, 06:05 PM
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Firebird 2000's post needs to be archived with all the other valuable tips & tricks.
That is GREAT info! Thanks.
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Old 01-21-2010, 07:23 PM
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Originally Posted by STONEWHITE R/T View Post
All is takes is a bunch of coins in your pocket or other keys on the ring while in your pocket to depress the button. Look at your FOB. The bottons on the Challenger fob are raised. Except for the panic button. It does not take much to depress the button and you will - open the windows, open the trunk, unlock your doors. But almost never set the panic mode.
Actually I've set the panic button off about 5 times in the past year at work.
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