I have a new 2019 Silverado crew cab Z71 package.... I have the same problem with back up camera. Dealer change camera but its still the same. Its blurry, has a green hue with lines in it. junk! I had a 2016 Silverado dbl cab , that camera was great. Cant even see what's behind you with this one.
Also while it was at the dealer, brake monitor was reading 40% left on front pads only drove it 2000 miles... did some update, at 100% now and had to do update on the battery saver program.