corvette / cadillac key fob interchange???
Thread Starter
Intermediate
Joined: Sep 2005
Posts: 31
Likes: 0
From: Jefferson GA
corvette / cadillac key fob interchange???
Does anyone know if any of the GM fobs are interchangeable? Specifically the 2005 Cadillac STS and 2007 Corvette. My wife and I are up to our necks in FOBs. I'd like to program my Corvette FOB as the number 2 in the STS and her STS FOB as the number 2 in the Corvette. 1 FOB fits both cars for each of us would be nice.
Do these fobs use the same frequencies and rolling / codes?? Anyone know before I spend half a day programming and reprogramming cars and fobs??
Thanks!
Do these fobs use the same frequencies and rolling / codes?? Anyone know before I spend half a day programming and reprogramming cars and fobs??
Thanks!
Drifting
Joined: Oct 2006
Posts: 1,732
Likes: 2
From: Naples FL
I do know there are different Caddy fobs that can work in the vette but I'm not sure which one try checking the PN on the back I think on 1 of them they match. Although if you already have it programmed as #1 in the vette I dont think you can program it as #2 in the STS. You would probably loose the Vette code. I don't think it can take more than 1 code but I could be wrong.
-David
-David
Pro
Joined: Jul 2004
Posts: 505
Likes: 1
From: peoria AZ
Vette/Caddie
[I do know there are different Caddy fobs that can work in the vette but I'm not sure which one try checking the PN]
I have an 2005 vette ???my spare fob is a caddie GM#10372541
Work on my Vette, FCC# M3N65981403 IS THE SAME ON BOTH?????
I have an 2005 vette ???my spare fob is a caddie GM#10372541
Work on my Vette, FCC# M3N65981403 IS THE SAME ON BOTH?????
PHOTOSHOP SPECIALIST
Joined: Aug 2007
Posts: 16,433
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St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Both the 2005 Cadillac STS and 2007 Chevrolet Corvette fobs have the same FCC ID: M3N65981403 and utilize the same frequency: 315 MHz.https://gullfoss2.fcc.gov/oetcf/eas/...N65981403'
Last edited by *FAÇADE*; Mar 24, 2008 at 02:22 PM.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
So where do you find this info? I have an '08 STS and an '08 C6. The fob for the Caddy has an additional button for remote start that isn't an option on my 2LT optioned Vette, but I really don't care about that either. What's the chance of one fob for both cars?
Pro
Joined: Jul 2004
Posts: 505
Likes: 1
From: peoria AZ
Fob
1564680183]So where do you find this info? I have an '08 STS and an '08 C6. The fob for the Caddy has an additional button for remote start that isn't an option on my 2LT optioned Vette, but I really don't care about that either.not an option on Vette""lock,unlock, trunk, & panic,work's ...one for both?????? got my sts on ebay....
info on back of key fob....
info on back of key fob....
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I'll probably go to the Caddy dealer to sort it all out. The salesman there owes us a favor, because we had to return twice in the first 1000 miles for tire problems.
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Drifting
Joined: Nov 2004
Posts: 1,654
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From: Cape Canaveral Florida
St. Jude Donor '07 thru '26
NCM Lifetime Member
By federal law there has to be an FCC number on the fob ... it is engraved on the back of the Vette fob (and same with the Caddy, I would guess). Its black on black (no stick, just engraved in the plastic) so it may be hard to see.
Race Director
Joined: Sep 2007
Posts: 16,557
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From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
The FCC ID is M3N5WY7777A on both fobs, but the C6 is marked GM/S25854929 and the STS is GM/S25854936.
PHOTOSHOP SPECIALIST
Joined: Aug 2007
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St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16
According to the FCC website, they both utilize the same 315 MHz frequency. The fobs should be interchangeable.
https://gullfoss2.fcc.gov/oetcf/eas/...N5WY7777A'
Le Mans Master
Joined: Aug 2000
Posts: 6,486
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From: Las Vegas NV
I do know there are different Caddy fobs that can work in the vette but I'm not sure which one try checking the PN on the back I think on 1 of them they match. Although if you already have it programmed as #1 in the vette I dont think you can program it as #2 in the STS. You would probably loose the Vette code. I don't think it can take more than 1 code but I could be wrong.
-David
-David
I believe the fobs never receive any individualized programming data from the car, so they don't "know" which car they belong to... they just transmit their coded frequency. It is the car itself that keeps track of which fobs are authorized users of the car's systems (by keeping an electronic list of authorized fob ID numbers in the car's system, which are internal electronic multi-digit numbers, not any number embossed on the back of the fob case). And of course, the cars themselves do not have any way of sharing fob info, so theoretically, you could have ALL your compatible cars using the same fob.
BUT... that sharing ability cuts both ways -- If you have a single fob matched to two cars, they will BOTH unlock/lock when you hit the button if both cars are in range.
