Here comes the VXDIAG VCX NANO GM scanner user feedback on 2006 GMC Envoy:
“This thing worked great on my 06 Envoy. I was starting to stress until I figured out the install. I installed it on an old win 7 laptop. The flash drive that came in the box has all the software needed to install. You have to use the zip7 to open the RAR file. Just right click and open with zip7. You must install all the other programs on the drive for it to work right. I was connected to the internet the whole time so I went ahead and updated the vxmanager. I didn’t try to use it off-line so I don’t know if it will work that way. Also the manager has to be open in the background when you open the tech2win. Heck I had all the programs open in the background just to make sure it had everything it needed. When you get to the box that says Chevy, china1, china2, default….. I had to click “North America” for it to work right. Hope this helps.”