C6 Instrument Cluster
Melting Slicks
Joined: Aug 2004
Posts: 2,907
Likes: 229
From: Oakbank Manitoba
The C6 Corvette mileage is stored in the instrument cluster. A Tech2 does not have the ability to reprogram the mileage. At a dealership level they have to send a request in to GM for a special program that gets written to transfer the new mileage into a replacement cluster or BCM. This is done only at a dealership (on certain models of GM vehicles). The cost is much cheaper if done by a cluster repair business.
Even then, most dealerships would decline to do this service because you didn't purchase the replacement instrument cluster from them. (clusters are no longer in production).
Could you imagine all the fraud that could be committed if you could simply reprogram the mileage with a Chinese clone Tech2.
If you need further proof....read the bottom of page 2 of this document. It mentions the C6 Corvette instrument cluster must be sent to a ESC-(electronic service centre). So even a dealership can't do it with SPS on TechConnect.
Last edited by KENS80V; Apr 19, 2026 at 11:38 PM.
Drifting
Joined: Aug 2022
Posts: 1,507
Likes: 427
From: Ruskin, FL
Absolutely wrong!
The C6 Corvette mileage is stored in the instrument cluster. A Tech2 does not have the ability to reprogram the mileage. At a dealership level they have to send a request in to GM for a special program that gets written to transfer the new mileage into a replacement cluster or BCM. This is done only at a dealership (on certain models of GM vehicles). The cost is much cheaper if done by a cluster repair business.
Even then, most dealerships would decline to do this service because you didn't purchase the replacement instrument cluster from them. (clusters are no longer in production).
Could you imagine all the fraud that could be committed if you could simply reprogram the mileage with a Chinese clone Tech2.
If you need further proof....read the bottom of page 2 of this document. It mentions the C6 Corvette instrument cluster must be sent to a ESC-(electronic service centre). So even a dealership can't do it with SPS on TechConnect.
The C6 Corvette mileage is stored in the instrument cluster. A Tech2 does not have the ability to reprogram the mileage. At a dealership level they have to send a request in to GM for a special program that gets written to transfer the new mileage into a replacement cluster or BCM. This is done only at a dealership (on certain models of GM vehicles). The cost is much cheaper if done by a cluster repair business.
Even then, most dealerships would decline to do this service because you didn't purchase the replacement instrument cluster from them. (clusters are no longer in production).
Could you imagine all the fraud that could be committed if you could simply reprogram the mileage with a Chinese clone Tech2.
If you need further proof....read the bottom of page 2 of this document. It mentions the C6 Corvette instrument cluster must be sent to a ESC-(electronic service centre). So even a dealership can't do it with SPS on TechConnect.
One edit, I used my Launch X431 to change the odometer.
And btw fraud would be 100% if it were stored in the cluster. Buy a used 35k mile cluster on ebay and install it. Now I have a 35k really 120k mile car.
Pro
Joined: Jun 2021
Posts: 504
Likes: 42
From: SW Florida
My servicer, C&S Corvettes says they are not able to program a replacement instrument cluster and suggested that I just put a used cluster in. That does not sound good to me since the odometer reading would be wrong.
Melting Slicks
Joined: Aug 2004
Posts: 2,907
Likes: 229
From: Oakbank Manitoba
ESC is an Electronic service centre. This means the instrument cluster must be sent in. Just find a business in your area that specializes in instrument cluster repair. They read the eeprom chip on the original cluster to verify the mileage. Then they use special software to change the odometer reading on the replacement cluster eeprom.
These companies require both instrument clusters in order to do this service.
The software used to provide this service is expensive. That's most likely why C&S Corvettes doesn't do it.
The C7 and C8 Corvettes store the mileage in the BCM but not the C6 Corvette.
These companies require both instrument clusters in order to do this service.
The software used to provide this service is expensive. That's most likely why C&S Corvettes doesn't do it.
The C7 and C8 Corvettes store the mileage in the BCM but not the C6 Corvette.
Last edited by KENS80V; Apr 20, 2026 at 02:02 PM.
Melting Slicks
Joined: Aug 2004
Posts: 2,907
Likes: 229
From: Oakbank Manitoba
Please let us know what you discover.
I know that most of these companies use the Tachosoft software to rewrite the odometer reading. They are unable to get the exact mileage installed on the replacement cluster but usually it will end up being within a couple hundred miles.
Last edited by KENS80V; Apr 20, 2026 at 02:08 PM.
Race Director
Joined: Oct 2004
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From: Home of the VOLS ! Knoxville, TN. Tennessee
St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
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Pro
Joined: Jun 2021
Posts: 504
Likes: 42
From: SW Florida
Note: I talked with the company and sent them photos of my existing cluster mileage to make sure everything was on the UP and UP. They did not need both clusters in this case.
Here is the company I found and used:
Keith - 407-376-1930 or 407-656-2500 - Keith@dealerschoicecar.biz
Autodigital inc
https://www.autodigitalinc.com/
700 Crooked Oak Court
Longwood Florida 32779
Last edited by C6SEUSA; Yesterday at 08:36 AM.
Race Director
Joined: Oct 2004
Posts: 13,597
Likes: 1,353
From: Home of the VOLS ! Knoxville, TN. Tennessee
St. Jude Donor '11-'12-'13, '15, '16-'17-'18-'19
It was done by a company that uses software to adjust the mileage reading. The cluster was sent to them and they made the adjustment. In case you are not aware, the C6 instrument cluster has no VIN number programmed into it and the only thing adjustable is the odometer and is only done when replacement is needed.
Pro
Joined: Jun 2021
Posts: 504
Likes: 42
From: SW Florida
Keith - 407-376-1930 or 407-656-2500 - Keith@dealerschoicecar.biz
Autodigital inc
700 Crooked Oak Court
Longwood Florida 32779