I wonder if this is same issue neighbor had with his new Ranger. Seems 3 months after he got his truck, the rear cam would go out. Sometimes it was fine. After week or so at dealer, they gave it back with a shrug, "dunno, can't duplicate". 2 months after that, he get a call to come back to dealer. All they said was something about water intrusion causing it and there was a remediation. Hasn't had problem since.