One problem related to wiring has been reported for the 2016 Tesla Model S. The most recently reported issues are listed below.
Mcu blacked out while driving on highway and when parked (sometimes while in reverse). 'autopilot features unavailable' and 'center display unavailable' error messages. Rear view camera was not available. Car startup and reboots took excessively long time. Navigation and voice commands were inoperative or unusable due to delay / inaccuracy. Web browser and screen rendering were increasingly delayed. All happened the day after full self drive upgrade was installed on 6/26/2020 with 30k miles. Tesla replaced rear camera, wiring from rear camera to mcu (8/10/2020 with 31. 4k miles) and, ultimately, the replaced the mcu with the same old mcu (tegra chipset, 8gb emmc on 8/26/2020 with 31. 5k miles). Logs with dates, times and symptoms available, along with Tesla service repair invoices with dates, mileage and parts replaced.