while driving the car during a snowstorm at approx 22mph automatic door locks started popping up and down, dashboard lights started flashing then lost all power had to be towed home. Battery is fine. when you turn key dashboard lights up but no engine turn over and no sound.
lost total power while driving on 2009 Pontiac G6
your battery may still be an issue. you need to have it checked along with the charging system. this is a good place to start.