G
G-756928
2017 Acadia Denali, infotainment screen blinked for a couple weeks, now has went totally black, will not come on. Radio still works sometimes, left front outside blinker has lost power, will not work! All of this happened pretty much at the same time, also the lane safety thing has quit working. I have checked all fuses, done all the quick fix options still not working. Please help!