I love my new Kia Niro Plug-in Hybrid. I have around 700 miles on it. I filled my gas tank and notice my gas mileage estimate did not go up when it was filled. So I have been driving it in HEV mode for the past couple of day to get the fuel gauge to go down but it’s not while my gas miles are going down. My gas miles range is at 379 miles but the fuel gauge is still reading full. Has anyone encountered this issue? Or know of a fix/ reset? Or should I bring it to the dealer. I did today but they told me to drive it more to see if anything changes but I also feel he told me that cause they were super busy.