The AFM is still a problem. My dealership finally said yesterday we cannot fix it, so you need to trade it off. Jerks bad going v8 to v4 and back. Going downhill at at 1500 rpm it will rev to 3500 rpm and freewheel. Parking lot starts are dangerous, push on the throttle and it then revs up and lurches backwards 3 or 4 feet. 2017 Silverado Nightmare.