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Why won’t my fob program?

Old Nov 11, 2022 | 03:45 PM
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Default Why won’t my fob program?

I just got a new DIC and cluster installed and I watched a video on YouTube on how to program your remotes and I can’t get the car to read them. The fobs were not working when I bought the car and the DIC buttons weren’t working as well. The dash issue has been fixed and I’m getting complete read outs, but I just can’t seem to get the fobs to register. And yes, I just put brand new energizer batteries in both. Anyone have any suggestions?
Also, my mileage doesn’t match the new odometer anymore and I was told by the dealer that the place that GM has that reprograms your odometer is no longer in service. So am I to understand that the mileage goes with the dash and not with the car’s computer? That’s the dumbest damn thing I’ve ever heard. Any suggestions on this too?
Thanks in advance.
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Old Nov 11, 2022 | 06:10 PM
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Are you using a big enough magnet?
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Old Nov 11, 2022 | 06:17 PM
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gauge cluster has to be reprogrammed to match the car's mileage after swapping it out.
and no magnets needed for programming door remotes (that's for tire sensors)... but the two do operate through the same module behind the seat.
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Old Nov 11, 2022 | 07:19 PM
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Originally Posted by _zebra
gauge cluster has to be reprogrammed to match the car's mileage after swapping it out.
and no magnets needed for programming door remotes (that's for tire sensors)... but the two do operate through the same module behind the seat.
Yeah, that’s the thing… The guy told me at an actual GM dealership that nobody reprograms those anymore so it’s not possible to even get it done. I already knew it needed to be reprogrammed. I was told they no longer can be. I was basically asking if someone is going to call BS on what the dealership said.
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Old Nov 12, 2022 | 02:05 PM
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i know a guy who got his silverado's mileage transferred within the last year or two... i'll see if he can pass what info he has.
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Old Nov 12, 2022 | 02:26 PM
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Originally Posted by _zebra
i know a guy who got his silverado's mileage transferred within the last year or two... i'll see if he can pass what info he has.
Thanks man. Much appreciated.
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Old Nov 12, 2022 | 03:32 PM
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Originally Posted by _zebra
gauge cluster has to be reprogrammed to match the car's mileage after swapping it out.
and no magnets needed for programming door remotes (that's for tire sensors)... but the two do operate through the same module behind the seat.
My bad
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Old Nov 12, 2022 | 04:08 PM
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[QUOTE=road pilot;1605901482]My bad[/QUOTE
OK I will try to make up for my mistake
Cultrag Performance use to have a C5 to C6 conversion
for your FOB. Call them and see if they can help
484 334 8833
Good luck
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Old Nov 13, 2022 | 06:44 PM
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https://www.gmgaugerepair.com/
that's where my friend got his truck's odometer programmed. i didn't see corvettes on his list, but maybe he could do one (or knows a guy who does)
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Old Nov 13, 2022 | 08:19 PM
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Look up the part numbers on your fobs and make sure you have the right ones. I got my car with a Cadillac SRX fob, no wonder I couldn't get it to work.
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Old Nov 13, 2022 | 09:23 PM
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Thanks everyone for your replies. I will look into the suggestions. I am selling the car, so if it’s too much of a hassle or expense, I won’t bother with it.
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Old Nov 14, 2022 | 07:04 AM
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Originally Posted by RobertCorvette
I just got a new DIC and cluster installed and I watched a video on YouTube on how to program your remotes and I can’t get the car to read them. The fobs were not working when I bought the car and the DIC buttons weren’t working as well. The dash issue has been fixed and I’m getting complete read outs, but I just can’t seem to get the fobs to register. And yes, I just put brand new energizer batteries in both. Anyone have any suggestions?
Also, my mileage doesn’t match the new odometer anymore and I was told by the dealer that the place that GM has that reprograms your odometer is no longer in service. So am I to understand that the mileage goes with the dash and not with the car’s computer? That’s the dumbest damn thing I’ve ever heard. Any suggestions on this too?
Thanks in advance.
I don't know if you've got the wrong car, the wrong fob, or the wrong forum. 2005 maybe, you don't say, but that shows in your profile?
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Old Nov 14, 2022 | 01:01 PM
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Originally Posted by 65GGvert
I don't know if you've got the wrong car, the wrong fob, or the wrong forum. 2005 maybe, you don't say, but that shows in your profile?
I am in a C5 forum asking about a C5 issue.
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Old Nov 14, 2022 | 01:51 PM
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Originally Posted by RobertCorvette
I am in a C5 forum asking about a C5 issue.
you should include more info in your op.
The reason you're being asked for the year of your car is that not all fobs work with all years.
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Old Nov 14, 2022 | 02:37 PM
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It’s a 98. The number on one fob matches the correct part number for a 98 (Original fob) and the other fob matches the correct GM number. they both look identical. They are the right ones. I tried multiple times to sync them as per the video on YouTube. No success. But as I stated above, I’m going to sell the car so I’ve decided not to worry much about it anymore.

And as far as the cluster goes… Even if I could get it done, I’m betting it would have to be removed from the vehicle, and I’m not about to do that again.
So again, thanks everyone for your replies. I’m just going to leave it all be.
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Old Nov 14, 2022 | 02:57 PM
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Originally Posted by RobertCorvette
It’s a 98. The number on one fob matches the correct part number for a 98 (Original fob) and the other fob matches the correct GM number. they both look identical. They are the right ones. I tried multiple times to sync them as per the video on YouTube. No success.
then either tpms or key fobs are fucked. If you're sure it's a matching fob (the earlier ones look exactly like the later ones)\.
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Old Nov 15, 2022 | 01:33 AM
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Moved to C5 Tech.
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Old Nov 16, 2022 | 02:47 PM
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My 98 fob has the passive switch. The later ones don't. (they do NOT look the same) You can check the fob with a tpms tool, or at least the one I have. It will tell you the signal and battery level.

FWIW every car I've ever seen the milage is stored in the instrument panel, even going back to the 80s with analog odometers.
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Old Nov 17, 2022 | 11:37 PM
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Originally Posted by Elektro
My 98 fob has the passive switch. The later ones don't. (they do NOT look the same)
...
97-98 ≠ 99-00 ≠ 01-04
three different styles that i'm aware of. the latter two do look alike (from what i've seen) but work on different transmitter modules.
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Old Nov 22, 2022 | 08:22 PM
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Originally Posted by RobertCorvette
I am in a C5 forum asking about a C5 issue.
Surely you can see my confusion when you don't say the year of the car and your profile says you have a 2005. And three different fobs are used on C5's according to year built.
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