2013 Duramax 2500HD tire size change?

[Yellow Jacket]

I cannot find where to change the tire size with a Tech 2 in the LML trucks? Which module is it located in?

Can anyone help? Or has anyone changed this new of a truck? I'm not finding the tire monitoring system either, so I know I'm missing something?

 

[clrussell]

I've been in the tpms but with a snap on scanner. It's it's own module. Not sure on tire size


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[Yellow Jacket]

Ttt

 

[Yellow Jacket]

TTT, anyone? Someone has had to of done this...

 

[S Phinney]

I do it with EFI live in the ecm.

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