I can already go to my local dealer and get any part I want, or I can buy ACDelco parts from places like Rock Auto and Amazon very easily. This doesn't seem like a huge step forward, unless their eventual plan is to reduce the dealer network and be more like Tesla.
It's all about the online sales, GM wants a bigger piece of the action, lots of sites already selling or reselling GM parts. Come to think of it, it's been many years since I went to a dealer for parts.....[S