It doesn’t seem to be for Global A and ChatGPT thinks it’s for modules that function under the Tech 2. For Global B perhaps or right before for 2017 vehicles that GM added Gateways to?
https://www.smelecom.com/sm/shengji/GM.jsp
What is this GM Code calculator for?
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e4life
- Posts: 13
- Joined: Sat May 01, 2021 4:27 pm
- cars: 2015 Tahoe
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Gatecrasher
- Posts: 435
- Joined: Fri Apr 24, 2020 8:09 pm
Re: What is this GM Code calculator for?
No idea. I played with it a little bit and it needs a 12 byte input. Not sure what that's for.
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ironduke
- Posts: 820
- Joined: Thu Feb 13, 2020 1:32 pm
- cars: Mainly GM trucks, a Cruze and an Equinox for dailys..
Re: What is this GM Code calculator for?
Sure it doesn't need a 31 byte message and replies with 12 bytes?
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gmtech825
- Posts: 301
- Joined: Fri Feb 24, 2017 1:27 am
Re: What is this GM Code calculator for?
LOL, First thing I tried. It looks like the company does something with mileage tracking for fleet vehicles.ironduke wrote: Thu Jul 31, 2025 4:12 pm Sure it doesn't need a 31 byte message and replies with 12 bytes?