Probably a symptom of flaky infotainment code. The likely workaround is to reboot the infotainment system. Put a finger on the display power button and hold it until it asks if you want to reboot.
I have same problemCivic Ex 2016 (only 2 weeks old). This morning the rear view camera didn't come on when reversing out of the drive, then realized the lane change camera didn't come on either on the drive to work. The cameras didn't engage at all. Waiting for a call back from the dealership. Pissed this has happened after 2 weeks of ownership. I will update with Hondas response.
Reboot by pressing and holding the power button. it will prompt to reboot. press reboot worked for me. Did the same thing when the audio cut out. They don't build Honda's like they use to!!!I have same problem
This morning I also had problems with the Lane-watch camera. It just would not come one either when I indicate left or when I press the button. I have only had my Civic LX for 4 weeks. This is one of my favourite features in the Civic. Darn..........Thanks. Looks like rebooting the infotainment system fixed it.