I have only had my EV a couple of weeks but I just find the whole GOM thing a lottery. Turn car on one time, 70 miles range next time 50 miles, after only doing a couple of miles. Charged with granny charger and got the recommended 449V. Just got my home charger yesterday, charged last night and have voltage of 455V. Assured by dealership when picked up the car that it has all the latest software updates. No wonder they call it a guessometer. Will never trust it to give anything like an accurate range until they sort out the software.