 In December 2012 General Motors reported , based on data collected through its OnStar telematics system since Volt deliveries began , that Volt owners drive around 900 mi ( 1 @,@ 400 km ) , or a month and a half , between fill @-@ ups . By mid June 2014 , GM reported that among Volt owners who charge regularly , they typically drive more than 970 mi ( 1 @,@ 560 km ) between fill @-@ ups and visit the gasoline station less than once a month . In early October 2014 , based on General Motors ' real time tally of miles driven by Volt owners in North America , the company reported they have accumulated a total of 1 billion miles ( 1 @.@ 6 billion km ) traveled , of which , about 62 @.@ 5 % were driven in all @-@ electric mode . 
