Rocket

I have a 2013 Fusion Hybrid that has been running great with no issues and now 2 days in a row driving down the road it shuts down completely while still driving. Have to coast off the road to put in park and cycle the key to get running again. Both times it was in the battery mode and won't switch over or nothing just dies. I live in the mountains that ain't cool...Especially when it is my wife's car. Has anybody had or heard of this issue? Thanks Rocket