I have a 2014 Volt and just recently got this message. The Volt seems to be running fine, it just doesn't charge when I plug it into the 240 volt charger or a regular wall outlet. We have an appointment for Monday. Hopefully its just the coolant pump like I read on some other posts. When I take the Volt out I put it in Mountain mode so it does charge the battery. I haven't seen any leaks on my garage floor, so I don't think coolant is leaking. I've had the Volt for 6 years now and have been very happy with it. The only annoying problems I've had are two incidences flat tires. The fix a flat canister thing did not work, so I had to call a tow truck both times. Replaced the factory tires with something else and haven't had any more problems. I get my Volt serviced at Larry Green Chevrolet in Cottonwood, Arizona. Anybody else?