I changed this topic from upgrade to HD camera to now file your NHTSA complaint regarding the safety of the rear view camera. https://www-odi.nhtsa.dot.gov/VehicleComplaint/
I also today 5/26/2020 filed an official case with Chevy and have a case number. During my phone call i expressed my absolute concern for the safety while using this rear view camera. At night time it honestly is so ridiculously awful that i could run a person or dog over and never knew they were even behind me. this camera is absolute useless compared to my 2015. My 2015 i pretty much never used my mirrors and only used the camera cause it had such a great picture and wide spread angle on it even at night time.
I will be updating this as i hear more from GM. They said 4 business days.
I encourage every one of you to file a NHTSA complaint. if we file enough they have to listen. I cited the poor day time quality, and the fact that at night time you can not see anything at all. The screen is so bright that it makes your eyes adjust to where you cant actually see out your side mirrors, and then the picture on the actual camera is so white washed and poor quality you cant even see out that. I legit feel like im blindly backing up at night time