Chevy Silverado ECM with VXDIAG GM Tips to Program

My Silverado shows a code ECM wasn't programmed right can I flash ECM with VXDIAG GM diagnostic tool?

Look at these images for more details:

vxdiagshop.com engineer replied:

for ECM Reflash, need to perform with SPS programming online. You need SPS subscription from ACDelco TDS website.

Read related guide: Chevy ECM Programming with VXdiag GM GDS2 and SPS

Hope it helps!