No worries, you're not alone. Some people thought that the green light stayed on and I think it must've at one point but maybe some update removed that feature??

Mods: EV mod, VVT-i emblem, sport pedals, OEM cargo mat, JDM Prius interior footwell lighting, Sylvania Silverstars 9003ST, DICE iPod kit, OEM all-weather mats, TomTom ONE v2, LED licence plate lights.