Good Day Gents,

Little advise/help appreciate..

I am no expert and just new to this..

I got Ls2 and 6L80E trans. I want to chance the my trans OS is 2008 and want to upgrade to 2009. I got credits for it and wont let me to upgrade to 2009 TCM OS.. anyone have any experience with this.. please refer the attached photo..

Thank youScreenshot 2024-04-09 132212 ERROR (1).png