Generation 1 Volt (2011-2015)
I own an Ampera and few months ago I upgraded HPCM2 and BECM modules with my SPS account. After I went from 9.6 to 8.6 kWh for a average distance of 30-37 miles.
Now I want come back to the previous sw version and to do I need a VCI code. Anybody successfully obtained it from GM?