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Discussion Starter #1
Late last week my power locks failed completely (inside and using keyfob), but everything else worked fine.

This morning, auto start failed to work, just a weak beep sound.

Tried starting manually (with both key fobs) and get "Key Fob Not Detected" on display.

Had to get to work so I took my g/f's Grand Cherokee. Did quick and dirty research and found the following that I will try later today.

1 - in the manual if your key fob doesn't start the vehicle, you can press the fob directly against the start button to do so manually

2 - Disconnecting / reconnecting the battery might work

3 - Could be key fob batteries, although unlikely as I tried both and get light flashes when trying to use it for other commands

4 - There's a module that may need replaced that works with the key fob.


I called my dealership service dept and the guy I spoke to claims he never heard of the problem and to have it towed over (I live 90 miles away). Reading around, it also happenson other Jeep models so I'm surprised he is making that claim.
 

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Discussion Starter #2
Follow up:

I bought a new battery for key fob on lunch and didnt work as expected. I tried powering on the car by pressing key on push button and the car started spazzing out. The speedometer kept going up and down along with all the warning lights turning on. The main display started flashing in and out and jumbling through speedometer with blank speed, car door open and other messages. Pretty weird.

Going to arrange a tow to the dealer and use my g/f's GC. I'm assuming it's an electronic module that needs replaced.
 

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I called Chrylser to get it towed to the dealership. The battery was drained at this time. We jumped it and the key fob started working but the display was jumping between a couple messages such as service engine and service airbag. Didn't get to test anything else as it was towed off. Will keep this updated.
 

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Discussion Starter #5
This happened to me a couple of months ago
See here
http://www.jeeprenegadeforum.com/fo...es/68049-brand-new-renegade-flat-battery.html

Problem was a flat battery. We got the dealership to provide a better one, and things seem good now.
Good info, thanks.

I talked to the dealer earlier this morning and of course it started right up. I told them the specific symptoms and they will look through the logs. I will ask about the battery when I speak to them again. Thanks.
 

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did u add any lights or anything to the battery ? did u change anything ??

i had this same issue 2 weeks ago i think it was

i wired up my lightbar direct to the battery , with a relay and harness , switch

a few days later my truck was doing the same thing , crazy dash , fob not working blah blah blah

after i jumped it , it ran and worked fine but died again

took to dealer - they told me the lightbar was draining the battery even after i removed the fuse an relay ... its been disconnected now for 2 weeks , no more problems - i re wired it to be switched power only
no issues anymore - the truck is very very figity..

so just a thought for u to ponder
 

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Discussion Starter #7
Everything is factory installed. Hopefully just a fluke, but considering replacing the battery on my own.

did u add any lights or anything to the battery ? did u change anything ??

i had this same issue 2 weeks ago i think it was

i wired up my lightbar direct to the battery , with a relay and harness , switch

a few days later my truck was doing the same thing , crazy dash , fob not working blah blah blah

after i jumped it , it ran and worked fine but died again

took to dealer - they told me the lightbar was draining the battery even after i removed the fuse an relay ... its been disconnected now for 2 weeks , no more problems - i re wired it to be switched power only
no issues anymore - the truck is very very figity..

so just a thought for u to ponder
 

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This happened about a month ago for me as well although my car would start it would continuously say key fob not detected even with the key fob in the vehicle, I disconnected the battery and reconnected per dealer and it hasn't done it since.
 

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Fob not working, 2015 Renegade

I am having the EXACT same issues with the “Fob not detected”. Have had to have the vehicle towed to the dealership a number of times. The service people seem a bit perplexed. Very frustrating! The alarm will also go off on mine, and I can not shut it off because the Fob is not detected.
 

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I am having the EXACT same issues with the “Fob not detected”. Have had to have the vehicle towed to the dealership a number of times. The service people seem a bit perplexed. Very frustrating! The alarm will also go off on mine, and I can not shut it off because the Fob is not detected.

Hi Jeeperz,
We understand how multiple dealerships visit could become frustrating. We would like to hear more about this and see if there is any opportunity for us to assist. Please send us a private message with additional details.
Julie
Jeep Social Care Specialist
 

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I have been having the same problem but it only seems to happen at Walmart. I had to use the fail safe procedure to start my renegade yesterday by touching FOB to start/stop button and pressing button. That worked and I got home, but I had a red light blinking intermittently by Tachometer...funny thing, after I got home, 2 state troopers, one marked and 1 unmarked rolled by my house...I was wondering if it was sending out a security signal. LOL

Anyway, switched to my other FOB until I could get new battery for the one. It seemed fine all day, until earlier when I went to Walmart again, it acted up a little, but eventually worked. I was actually at Walmart to buy batteries for the FOB's...so now I have changed the battery in the one and went out and tested it and everything is fine...we will see if it acts up again. Both FOB's seemed to act up at Walmart, almost like something there was interfering with the signal. Will see how it goes with new battery. Hoping it was just a low battery.,..but seeing there are other posts about this issue concerns me a little. My Renegade is a 2016 that i bought new in January of 2017...so both FOB batteries are a little over 2 years old at least, so maybe just battery, but the one I have never actually used and it acted up in a similar way at walmart today...my thought was, What is it about Walmart that causes the FOB to act up.
 

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I am having the EXACT same issues with the “Fob not detected”. Have had to have the vehicle towed to the dealership a number of times. The service people seem a bit perplexed. Very frustrating! The alarm will also go off on mine, and I can not shut it off because the Fob is not detected.
Bought mine a few weeks ago - three years old and was doing this. A new battery in the fob seems to cured things.
 

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I have been having the same problem but it only seems to happen at Walmart. I had to use the fail safe procedure to start my renegade yesterday by touching FOB to start/stop button and pressing button. That worked and I got home, but I had a red light blinking intermittently by Tachometer...funny thing, after I got home, 2 state troopers, one marked and 1 unmarked rolled by my house...I was wondering if it was sending out a security signal. LOL

Anyway, switched to my other FOB until I could get new battery for the one. It seemed fine all day, until earlier when I went to Walmart again, it acted up a little, but eventually worked. I was actually at Walmart to buy batteries for the FOB's...so now I have changed the battery in the one and went out and tested it and everything is fine...we will see if it acts up again. Both FOB's seemed to act up at Walmart, almost like something there was interfering with the signal. Will see how it goes with new battery. Hoping it was just a low battery.,..but seeing there are other posts about this issue concerns me a little. My Renegade is a 2016 that i bought new in January of 2017...so both FOB batteries are a little over 2 years old at least, so maybe just battery, but the one I have never actually used and it acted up in a similar way at walmart today...my thought was, What is it about Walmart that causes the FOB to act up.
A new fob battery sorted mine out! Well, at least so far!
 

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Does the Renegade have some sort of warning system that lets the user know the fob battery is getting weak ? Reason I ask is, I own a smart fortwo (yes, and it's a great little car) and when the battery in the fob is getting weak, when you unlock your doors, the headlights quickly flash like 4 times. Go get a new battery, everything is good.

But that's a keyed ignition. My Renegade is a keyless ignition, you'd think they'd have SOME type of warning system to let you know you need a new battery being that fob is vital, not a luxury, to starting your vehicle. Does it ?

Or does Jeep expect it's users to have them stand by their doors, repeatedly pressing the unlock button, walk closer to the vehicle, try again, extend your arm straight, try again, then put the fob on your chin and press again (we've all done that), then go, "What the....." ? Only to determine the battery is dead/weak, pulling out the emergency key, unlocking your door, pressing the fob against the start button and have your dash light up and flash like a jackpot winning slot machine in Vegas.
 

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Does the Renegade have some sort of warning system that lets the user know the fob battery is getting weak ? Reason I ask is, I own a smart fortwo (yes, and it's a great little car) and when the battery in the fob is getting weak, when you unlock your doors, the headlights quickly flash like 4 times. Go get a new battery, everything is good.

But that's a keyed ignition. My Renegade is a keyless ignition, you'd think they'd have SOME type of warning system to let you know you need a new battery being that fob is vital, not a luxury, to starting your vehicle. Does it ?

Or does Jeep expect it's users to have them stand by their doors, repeatedly pressing the unlock button, walk closer to the vehicle, try again, extend your arm straight, try again, then put the fob on your chin and press again (we've all done that), then go, "What the....." ? Only to determine the battery is dead/weak, pulling out the emergency key, unlocking your door, pressing the fob against the start button and have your dash light up and flash like a jackpot winning slot machine in Vegas.
I expected there would be some kind of warning that the fob battery was low but got no such warning with mine. Whether I should have, I don’t know, or whether a warning would have appeared in due course I have no idea. I just got intermittent starting and locking/unlocking behaviour which seems to have been sorted since putting in a new battery.
 

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Misplaced one key fob, had to change battery in other one. Everything works except the start. Indicates key fob not detected. Two weeks before dealer can check out. Thinking if the fob has to be reprogrammed, about getting a new one from Amazon and having both done at same time. Looking for suggestions.
 

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HockeyMom its a common occurence with the Jeep battery only lasting around 3 years.

The proof is in the pudding so to speak. I wonder where that expression came from Likely from one of my Mums Scottish clootie dumplings but I do digress as usual.

Have a wee look through the forum by using the search bar above and merely type in battery then sit back in amazement as you will then put your mind at ease.

If it's any consolation, I too suffered from the flat battery syndrome :cry::cry:

BEN ZIMMER: Well, the proof is in the pudding is a new twist on a very old proverb. The original version is the proof of the pudding is in the eating. And what it meant was that you had to try out food in order to know whether it was good
 

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Well, I theorized about the key fob giving you zero warnings about the battery dying. Well, theory no longer. A few weeks back, my wife said, "I can't get the Jeep to unlock.". She had used it just hours earlier. I give her my fob, no issue. Since I have spare batteries on hand (I'm anal like that), I popped in a new battery and hand her back her fob. No worries, back in biz. I replace the battery in my fob also.

Jeep didn't see fit to give us a rudimentary warning system like flashing tail lights, indicator on dash, something. I guess that meeting on where to place that Italian spider saying hello ran a little long and they were out of time to discuss practical things.
 
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