Dreaded Key Fob not detected
Thread Starter
4th Gear
Joined: Feb 2016
Posts: 4
Likes: 0
Dreaded Key Fob not detected
The key fobs belong to an 05 Base Convertible auto C6. I have three original remotes which were working correctly about 4 months ago. The car has been sitting and does not recognize any of the key fobs. I've followed CCLive's long procedure instructions several times to reprogram all three fobs, with little success. I'm not certain where exactly the failure is occurring. I can get to the programming stage and all three fobs are placed into the GC slot correctly but immediately after pushing the bottom half of the start button......I get the dreaded no key fob detected. I'm not certain what is not allowing the key fobs to be recognized. None of them work! Any suggestions or assistance is welcomed. I've read so many threads that I'm actually thinking I have to start from zero.
Any help is appreciated.
Thanks again,
Al.
Any help is appreciated.
Thanks again,
Al.
Pro
Joined: Mar 2018
Posts: 660
Likes: 63
From: Fresno CA
I just recently started having this issue with both of my keys. I replaced both batteries not 4 months ago. At first intermittently, and then more frequently, the doors wouldn't open, trunk wouldn't open, "no fob detected" was displayed when trying to start the car (even when putting it into the slot correctly in the glove box), and "run or off? - no fob detected" message when I turned the car off.
I replaced both batteries in both fobs and it fixed the problem completely. Everything works properly now. I hope your fix is as simple as mine was, good luck.
I replaced both batteries in both fobs and it fixed the problem completely. Everything works properly now. I hope your fix is as simple as mine was, good luck.
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
Probably FOB batteries but "could" be the car battery. If you don't know the condition of the car battery get it checked or just replace it.
You should never have to reprogram the FOBs. Don't go there. The car doesn't lose programming just because the battery dies or is disconnected. Programming FOBs is really only for adding or replacing a FOB.
You should never have to reprogram the FOBs. Don't go there. The car doesn't lose programming just because the battery dies or is disconnected. Programming FOBs is really only for adding or replacing a FOB.
Thread Starter
4th Gear
Joined: Feb 2016
Posts: 4
Likes: 0
Batteries Gents! Batteries!
Thanks for the replies theandrewo and RickT. Something I failed to include, I had AAA roll out to initially check out the car battery and it had 644 CA on a 640 CA battery that I routinely keep on a tender. However, I only changed the battery on remote 1. When I tried to reprogram all remotes, it was not taking any of them. Today, I replaced all of the batteries in the remotes and immediately began to work. I can't tell you what I did wrong or right but they're all working correctly now. I'm thinking theandrewo was correct. Many thanks.
Pro
Joined: Mar 2018
Posts: 660
Likes: 63
From: Fresno CA
Glad it worked out for you namelama. I was feeling the same way, since I replaced my fob batteries just a few months ago and only use one of my fobs on a regular basis. When it started acting up, I feared a bigger problem was afoot - but fortunately, it was just a couple $2 batteries.
Pro
Joined: Nov 2013
Posts: 552
Likes: 58
From: western NC, USA
My problem was replacing fob batteries with "new" ones that were already going dead. Fob batteries don't have a good shelf life. Now, I buy and test my new fob batteries before I install them. You can use a multimeter to test them, but I'm told using a 3volt diode bulb is a better test since it actually pulls a load on the fob battery. I haven't used a diode bulb but I do use a multimeter. Also, I no longer buy several batteries to have on hand. I buy a fresh one each time I need one, check it, and install it. I had a multitude of electrical issues that one would not consider as a fob battery problem until I did replace with a good battery.
