C7 Key fob(s) stopped working???
- Thread starter Crinks
- Start date
Just a long shot....but you could try putting the fob in the slot on the right side of the steering column and seeing if the car will start. But I would not
be surprised if the main battery is dead. The slot for the fob is an induced charge area for the fob battery if it is dead.
be surprised if the main battery is dead. The slot for the fob is an induced charge area for the fob battery if it is dead.
- Thread starter
- #3
Thanks. I was able to get into the vehicle using the key from the fob in the hidden slot by the rear license plate and then opening the emergency pully in the trunk for the driver door. As soon as I did that, it triggered the alarm. The alarm shut itself off after 5 embarrassing minutes, and then surprise surprise both my key fobs began working again? I tested the battery with a volt meter, it's reading 12.8 when car not running, not perfect but not bad. After starting the vehicle the battery is up over 14 so perfectly normal. I'll call the dealer tomorrow but if anyone has any other ideas please send my way......much thanks.
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YFCvii
I had key fob issues this spring with three different C7s. All remedied with new key fob batteries. I replaced every one and no issues since. Yours appears to be like the “corvette #3” problem I had. Try this less expensive resolve of key fob batteries. They are 2032 batteries and I will post my DIY next.
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Question - C7 - Key Fob Issues ? or not ?
Hello, ... not a hypothetical situation ... I have issues with 2 of 3 C7 Corvettes (2016 & two 2017s) ... All while in Winter Storage All 3 full-time on GM battery maintainers. All 3 in an unheated Garage Corvette #1 - key fob opens doors & remote starts (A8) - not locked while in storage - no...
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Y
YFCvii
I posted this D.I.Y. battery replacement that follows the owners manual in order to not blemish the key fob when opening it. 
canadiancorvetteforums.com
Guide - C7 Remote Key Fob Battery Replacement
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Mine went dead this past summer after I had been warned on the display to change the battery.
Went through the same procedure with the alarm except if you get in and start the car the alarm will go off.
After that the FOB worked fine for the rest of the day.
Long story short - change the FOB battery as per SN's excellent instructions. Make sure you put the battery in on the proper side or you will get to follow SN's instruction twice. LOL
So my battery lasted not quite four years. Second FOB works fine for now. Waiting for it to die.
Went through the same procedure with the alarm except if you get in and start the car the alarm will go off.
After that the FOB worked fine for the rest of the day.
Long story short - change the FOB battery as per SN's excellent instructions. Make sure you put the battery in on the proper side or you will get to follow SN's instruction twice. LOL
So my battery lasted not quite four years. Second FOB works fine for now. Waiting for it to die.
I had the same problem with my C7. Had to replace both batteries in both key fobs. Batteries last about 2 to 3 years in those key fobs.
Y
YFCvii
I Put the energizer bunny to work in all the key fobs ... so far so good ... and “still going” 