Camera Windshield Defrost Heater
WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The camera windshield defrost heater is used to defrost the windshield in front of the camera. The Image Processing Module - A (IPM-A) uses input from the front camera and the ambient air temperature to command the camera windshield defrost heater on. The heater may be commanded on if the ambient temperature is below 5°C (41°F).