I was messing around with the possibility of adding auxiliary reverse lights and have come across this problem. I found the set of 4 harnesses by the spare and was attempting to check each for which roles they served as best as I could manage and while doing so have messed up the reverse lights and reverse camera. Now whenever I place the truck into reverse the reverse lights do not illuminate and the rear vision system is solid blue except for the statement "Service Rear Vision System" across the top momentarily and the backup lines appearing. I would assume that I have managed to not fully re-seat the harness to which the reverse lights and reverse camera draw their power supply, but as everything has audibly clicked back into place multiple times I'm now stumped. I then checked the fuse box under the hood and fuse 16 for the reverse lights is not blown. Is there another thing that I could check before I make a dealership appointment? TIA
2018 Sierra 1500 SLT
2018 Sierra 1500 SLT