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  #37  
Old 03-04-2012, 12:42 PM
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Re: Infamous "key not detected" problem.

I removed battery from the FOB, put it back and never had this problem again. Sounds ridiculous but it is true.
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  #38  
Old 03-05-2012, 01:16 PM
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Re: Infamous "key not detected" problem.

Had the TSB done for this issue last week. Only my wife's fob seemed afftected. Replaced battery in her fob before doing the TSB. Seems all's good.......at least for the moment!
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  #39  
Old 03-06-2012, 10:03 PM
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Re: Infamous "key not detected" problem.

Took the advice of others and removed and reinstalled the battery in each of my FOBs. Tested each using the remote start function, and lo and behold, they both worked first time!!

One of the FOBs had obviously been exposed to water, because the battery had a rust spot and a couple of the solder points showed corrosion. I cleaned these off by rubbing with a paper towel. On both FOBs, I used a pencil eraser to clean the battery contacts and bent them as suggested in an earlier post.

Will report back in a couple days.
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  #40  
Old 03-06-2012, 10:38 PM
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Re: Infamous "key not detected" problem.

Quote:
Originally Posted by JoeSchmoe007 View Post
I removed battery from the FOB, put it back and never had this problem again. Sounds ridiculous but it is true.
This morning door wouldn't open by touching inside handle, nor would it open by pressing FOB open button. (tried both doors and hatch) I used the key to open drivers door, alarm went off and wouldn't stop by pressing any button on FOB. Got in the car after alarm cycled off and got "key not detected" message.
Just on a whim, I opened the FOB without removing the battery and put it back together. After that the door unlocked and engine started... go figure
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  #41  
Old 03-06-2012, 11:42 PM
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I also tried bending my gold prongs that touch the battery. This helped a ton and have much better range.
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  #42  
Old 03-12-2012, 06:39 PM
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Re: Infamous "key not detected" problem.

I am happy to report that the FOB problem is now gone. After a week, all functions are working every time with both FOBs.
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  #43  
Old 06-25-2013, 04:20 PM
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Re: Infamous "key not detected" problem.

I am having that problem now with a 2012 GC Laredo. "Key not detected", when I popped out the start button and used the hard key it would not turn. I pull out hard key and display says "key damaged". Alarm and lights for several minutes with doors closed. Alarm quits and I open door, alarm & lights again for several minutes. Alarm quits with door open and I make a call and await a tow. While waiting, I decide to replace the push button . When I push it back in the "accry" display lights up, I put my foot on brake and push again. Starts and I cancel tow and drive to dealer. What's going on???!!!
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  #44  
Old 07-29-2013, 02:55 PM
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Re: Infamous "key not detected" problem.

Hi, I think Im having the same trouble can you tell me more specifically where is this antenna located.
Tnks
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  #45  
Old 07-29-2013, 02:59 PM
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Re: Infamous "key not detected" problem.

Our 2011 had similar problems and was in the shop 3 times in one month with keys not being recognized and not allowing the Jeep to start. The work orders always said cleared codes and updated modules. Finally, they replaced the one key and that seemed to work, but we got rid of that one and replaced it with a 2014.
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  #46  
Old 07-30-2013, 07:30 AM
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Re: Infamous "key not detected" problem.

I had similiar issues. What I found when I pulled the fob apart was that the prongs holding the battery in place had worn/rubbed the battery. I thought I had dead battery but really just needed to rotate the battery to get it off the worn spots. Not the best or most desireable option but it worked.
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  #47  
Old 05-18-2014, 06:58 AM
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Re: Infamous "key not detected" problem.

I have a 2013 GC Limited with 18K, one key fob works, the other was intermittent. I couldn't replicate the issue during an oil change so the dealer suggested changing the battery, they had none in stock so I changed out at home with the same results. The dealer ordered a new fob under warranty and reprogrammed yesterday. The remote start worked fine at the dealer, thought all was good but I had both keys in my pocket at the time to keep from getting stranded. When I returned home all functions worked from the remote but I got the "key not detected" on the new fob when I tried to start vehicle. Called the dealer back and they will look at it as soon as I can get it back in.
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Old 05-18-2014, 08:48 PM
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Re: Infamous "key not detected" problem.

Quote:
Originally Posted by mburns4 View Post
I have a 2013 GC Limited with 18K, one key fob works, the other was intermittent. I couldn't replicate the issue during an oil change so the dealer suggested changing the battery, they had none in stock so I changed out at home with the same results. The dealer ordered a new fob under warranty and reprogrammed yesterday. The remote start worked fine at the dealer, thought all was good but I had both keys in my pocket at the time to keep from getting stranded. When I returned home all functions worked from the remote but I got the "key not detected" on the new fob when I tried to start vehicle. Called the dealer back and they will look at it as soon as I can get it back in.
Did you have a fresh battery at home? I found that a set of batteries I had had good voltage but none of them worked in the remote. Battery from another set worked fine.

In case you didn't know - you will not get stranded even if battery dies. If remote itself is fine you can remove Start button and insert remote without a battery like a key. Well, to be precise I tried this on '11 WK2 but I am fairly certain '13 is the same.
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