I just read this whole thread because I am trying to determine if our 2015 has experienced any actual range loss or if our % meter is just out of calibration. We have had our 2015 since July 2018 when we bought it with 17,000 miles on it. It now has 39,500 miles and we have loved the car. The % meter is depleting quicker than it has in the past in relation to the same driving routes and habits. Is this likely just due to the meter losing its original calibration in relation to actual remaining battery energy or is it possible that the battery bank is actually losing range?