 The Volt features OnStar Mobile application for owners to access vehicle information without being in or near the car . This smartphone application features the ability to check fuel efficiency as well as the vehicle 's current electric range . It also helps monitor the charging , giving owners key information about the current charge level and the amount of time it will take until it is fully charged . The application also is able to control features such as locking / unlocking doors , and acts as a remote starter . A five @-@ year OnStar Directions and Connections service was bundled into the 2011 Volt 's base price , which was reduced to three years for the 2012 model year . 
