Hello, I have a 2006 galaxy and yesterday morning I woke to a flat battery. Green flag came out who told my wife a connection was also loose and tightened it before starti g tye batrery. My main question is the miles to empty function has been playing up since then. Usually i fill up and it usually has 650miles or so in the tank. Before the flat battery I had less than half a tank with a range of 390, now I've filled it and it's telling me i have 400, despite averaging 47mpg since filing 10 miles ago. Any ideas please, I can't find an option of resetting it.