According to the ignition switch recall-laden General Motors, owners of the 2012 and 2013 model year Chevrolet Volt long range electric vehicle are 'encouraged' by the manufacturer to schedule a visit to the nearest dealer around. Why so? Well, the problem boils down to the coolant (no pun intended).
An undisclosed number of Chevrolet Volt extended-range plug-in hybrids are suspected to suffer from air pockets in the vehicle's cooling circuit. That roughly translates to lower-than-advisable battery coolant levels, which ultimately renders the eco-friendly Volt into a gasoline-hungry contraption.
Insufficient coolant renders the Rechargeable Energy Storage System (RESS for short) inoperative, meaning that the onboard generator won't actually provide any electrical juice to the battery pack. Just a year ago, GM issued a similar "voluntary customer satisfaction effort", bringing in 8,000 units of the eco-conscious Chevrolet Volt to top the battery coolant reservoir.
Even though owners of the 2012 - 2013 Chevrolet Volt are advised to contact their local dealership to schedule a free of charge fix, the manufacturer omitted to provide the media with the number of vehicles affected. Presumably, that means that all 46,555 Volts from the aforementioned model years are recommended to visit a Chevy service department as soon as possible.
Owners that want more info on this
"voluntary customer satisfaction effort" can contact GM Customer Service at 800-222-1020 and reference Service Campaign #14114 - RESS Battery Coolant Level Low. Another way to find out if your car is involved is to provide the VIN via telephone to your local Chevrolet dealer.