2024 Keyfob #3 programing problem
Thread Starter
3rd Gear
Joined: Mar 2023
Posts: 3
Likes: 2
2024 Keyfob #3 programing problem
Purchased key and fob for #3 Keyfob for !my 2024 Corvette. Self programming option no longer in car menu! Took car into dealer service and their usual method of programming killed car electronics! Roving Corvette tech came in a few days later and restored original keys and car electronics. No #3 Fob. New software needs to be written? Anyone else with this issue?
Thread Starter
3rd Gear
Joined: Mar 2023
Posts: 3
Likes: 2
3 Fobs
Always travel with 2 keys. Leave 3rd home. A C8 acquaintances wife drove Vette to LA. She "misplaced" key and discovered car could not easily be moved. Car towed to dealer and she discovered that a missing key can be a problem. Much cheaper to drive from Bay Area to LA with spare key which husband did.
2024 Corvettes seem to have a software issue in this area.
2024 Corvettes seem to have a software issue in this area.
Instructor
Joined: Jul 2023
Posts: 118
Likes: 34
How many keys can be programmed into the 2024 C8? I usually want four keys per car (2 spares!!) and always drive with 2 on a trip. I learned my lesson long ago and never again will be far from home with only one key. It only takes one time for a misplaced keyfob and this to become a nightmare.
The Shelbys allowed four remote keyfobs and 4 additional keys that only allowed door unlocks and engine starting. How many does the 2024 C8 allow and if the owner can't program it and a aftermarket automotive tool do it?
Here's the catch on the Fords....you needed two keys to program another yourself so if you lost one before you bought a third you are now stuck using Ford or an automotive locksmith to get any new keys into the system...expensive mistake.
The Shelbys allowed four remote keyfobs and 4 additional keys that only allowed door unlocks and engine starting. How many does the 2024 C8 allow and if the owner can't program it and a aftermarket automotive tool do it?
Here's the catch on the Fords....you needed two keys to program another yourself so if you lost one before you bought a third you are now stuck using Ford or an automotive locksmith to get any new keys into the system...expensive mistake.
Race Director
Joined: Sep 2016
Posts: 13,180
Likes: 10,522
The ability to program a third fob yourself was removed, I think, with the 2023 MY cars. If the dealer couldn't program a third without killing the car, they didn't know what they were doing. Find a dealer that has a competent service department.
Instructor
Joined: Sep 2024
Posts: 142
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I was looking into having a 3rd at home also just in case but hadnt found anything yet.
Racer
Joined: Jan 2023
Posts: 335
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Its possible that if you ever had your car in for service in 2024 that the BCM would be updated to 2024 OSID levels. That most likely would then put your pre-24 car up to the 24 software which appears to have no ability to program your own FOB DIY. I have always said sometimes an update is not a good update to a software package in a car. GM can remove and add features all they want without your consent.
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Race Director
Joined: Sep 2016
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As vette 388 says, it's possible an update could have removed that feature, but I think it's unlikely. Only one way to find out for sure.
Last edited by Red Mist Rulz; Oct 3, 2024 at 02:58 PM.
Moderator
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From: DFW Area TX
From the 2024 Owner's Manual:
Programming Remote Keys to the Vehicle
Only remote keys programmed to this
vehicle will work. If a remote key is lost or
stolen, a replacement can be purchased and
programmed through your dealer. When the
replacement remote key is programmed to
this vehicle, all remaining remote keys must
also be reprogrammed. Any lost or stolen
remote keys will no longer work once the
new remote key is programmed.
Only remote keys programmed to this
vehicle will work. If a remote key is lost or
stolen, a replacement can be purchased and
programmed through your dealer. When the
replacement remote key is programmed to
this vehicle, all remaining remote keys must
also be reprogrammed. Any lost or stolen
remote keys will no longer work once the
new remote key is programmed.
Instructor
Joined: Jul 2023
Posts: 118
Likes: 34
Okay...so only a dealer can add a third keyfob and it requires him to reprogram all the keys. In other words it sounds like the BCM key info is wiped and reloaded as if new with all the keys needed to be present for reprogramming. .Doesn't make sense to not allow a third to be programmed by the owner if he already has two keys present. Just another way to allow dealers to scam owners out of a lot of money. Corrupt backward states like NY are probably in on it since it logically makes no sense and definitely does not create any additional securty. I'll search to see if there is any company that can duplicate the characteristics of any existing C8 keyfob such that the car can't tell the difference between the spare and the original. . .
Race Director
Joined: Sep 2016
Posts: 13,180
Likes: 10,522
Okay...so only a dealer can add a third keyfob and it requires him to reprogram all the keys. In other words it sounds like the BCM key info is wiped and reloaded as if new with all the keys needed to be present for reprogramming. .Doesn't make sense to not allow a third to be programmed by the owner if he already has two keys present. Just another way to allow dealers to scam owners out of a lot of money. Corrupt backward states like NY are probably in on it since it logically makes no sense and definitely does not create any additional securty. I'll search to see if there is any company that can duplicate the characteristics of any existing C8 keyfob such that the car can't tell the difference between the spare and the original. . .
Instructor
Joined: Jul 2023
Posts: 118
Likes: 34
I have a 2024 and I think it basically eliminated the option for the car owner to add another key without the dealer repropgramming the ecm...either by adding another key or clearing and re-adding all the keys back in. Either way they took the car owner out of the picture and now it requires $$$ for no valid reason other than to make a buck!