Yesterday our 2016 started acting a little strange. Whenever even slight acceleration is called for, it starts the engine and runs while driving. This morning, the electric range was showing as 46 miles, and after driving about 15 miles it still shows 46, with the engine shutting off and on many times. I tried changing to "hold" mode and then back to "normal", but the engine still comes on whenever I accelerate, even fairly gently. Anyone else experience this? Suggestions?