Also, speaking generally to OP's point -- I live in CO and had a 2012 without HD and a 2016 with HD. Haven't gotten stuck yet in either, although I am running blizzaks in Winter.
Watching the 4x4 display, an aggressive standing start will lock the center, and flooring it will also see the rear lock up.
Watching the 4x4 display, an aggressive standing start will lock the center, and flooring it will also see the rear lock up.