I have decided to go ahead and purchase the 240v charging station for my 2014 Volt. With the 2014 I have to select the level of 12amps every evening on the 120v charging system in order to be able to obtain the maximum amount of charge by morning. It defaults to 8amps and GM cannot change it on my car. This is the second Volt I have owned. The dealership stated to me that I will need to bring the car in for some programming when the new charger arrives. Can't I just plug the charger in after my electrician installs the station? Will I still be able to use my 120v charger at a friends house? - why does the dealership need to program my software?". I would appreciate any comments.