Thanks to a reply on one of Edmunds' blog entries, I found out that Chevy put up the owner's manual up at http://www.chevrolet.com/assets/pdf/owners/manuals/2011/2011_chevrolet_volt_owners.pdf. (Nissan puts their owner's manuals up online too.) I have no intent to read all 516 pages, but it does discuss stuff like mountain mode, Engine Maintenance Mode (EMM), and Fuel Maintenance Mode (FMM).
