Okay, I'm having the same issue a few of y'all are having but in skimming the thread we didn't find the solution.
I haven't installed my backup camera so this might have worked and I'll know once it's enabled, but I have a 2017 that's been upgraded to Sync 3.4. The settings spreadsheet says to change the values to
2330 6105 C052.
However, my default values were 0130 6505 0074. We changed it to 0130 6105 C052 and nothing broke - hell, once I wire up the camera it might have even worked - but I'm curious as to what happened here that made those values SO different than expected.
I haven't installed my backup camera so this might have worked and I'll know once it's enabled, but I have a 2017 that's been upgraded to Sync 3.4. The settings spreadsheet says to change the values to
2330 6105 C052.
However, my default values were 0130 6505 0074. We changed it to 0130 6105 C052 and nothing broke - hell, once I wire up the camera it might have even worked - but I'm curious as to what happened here that made those values SO different than expected.