Open VCM editor and open the tune file for the truck. Have the MPVI2 plugged into the laptop and the truck key is in the run position. Already have resynced the interface. There is no write-to-vehicle option. The icon is grayed out so you can not click on it. Has anyone run into this? This is one of my remote customers. Tune lock is set up correctly. The same way I do it every time.