NEW FYI--was at the dealer today for oil change and tire rotation plus replacement of tailgate GMC puddle lamp that looked like a paint spill on my 22 Denali. My service Mgr. says the chips for front/rear park assist can be ordered so we ordered them and we'll call when they come in. The GM resolution team liason kept telling me maybe middle/end of July or August I would receive a letter stating chips were available and take it to dealer so they can order parts. So if you're waiting,call your dealer.