Can you elaborate? Also, what version do you have?
Are you talking about surround camera view? I am not aware that is available for Model 3. How do you access this feature?
You mean like an overhead view? If so, no amount of rebooting will help. It doesn't exist currently.
I never had a surround view!
Leave the car long enough for it to go “to sleep”. This usually resolves this issue, if I understand you correctly (no lane lines or cars showing up during your drive and no cruise control or autopilot)