Update. I just got in from goofing off with the license plate lights I took some pics but trying to take pics of a screen to show brightness of another screen is just a train wreck.
So here is what I did. At first I just looked at how the reverse screen appeared doing nothing. As suspected if the camera can get light in from the reverse lights reflecting off stuff and things like street lights and house lights it dimmed back down. I still had the hot spot but instead of being blazing white I can make out the orange paint vs last nite the whole screen turned bright white.
I did not have time to fabricate anything so I decided to try to defuse and dim the lights. I started with one layer of silver duck tape. Not to be confused with real aluminum duct tape. This really knocked down the hot spot and I was happy with the results. But I had more tape so layer 2 was applied. This yielded interesting results the hot spot disappeared the image of the ledge was still there but was cleaned up a lot. But the camera picked up some noise.
Well I still had more tape so layer 3 goes up I can still see the ledge but is is a bit more dim. However the noise bumps up as well. Next I block the lights almost completely. I can still see the ledge but not so easy to make out the color. Noise jumped way up and is very grainy and blotchy. But something else happens now the reverse lights reflecting off the ground became much brighter almost as annoying as the ledge. So the hot spot is now from the reverse lights and is in the middle of the screen.
My best guess is that FCA played with the camera software to try to get this under control. So they were counting on that ledge being bright and as you remove that bright spot the software brings in some noise as that spot dims. The light level for me with one layer of duct tape was pretty good and the plate still very visible.
I tried some masking tape as well and it made things better but the duct tape was best. I'm wondering if the camera is IR sensitive. Ok while typing that I had the brainstorm to go out with a IR remote control and see if the camera picked up on the IR led. So yes it is capable of seeing IR which makes sense for better night vision. Now the tag light is pretty bright and slightly blue so is it an led factory? If so could it be putting off IR? If so this might explain why the glare is so bad off that ledge and making the screens so bright and why duct tape worked better than masking tape the siver blocked more IR light maybe.
Grrrr so much to think about and it is 1:30ish AM here and I'm finally tired enough to go to bed. So we will pick back up on this as others try blocking their tag lights and post their findings.