Rear Window Defrost
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
When the rear window defrost switch (integral to the Front Controls Interface Module (FCIM)) is pressed and the engine is running, the HVAC module activates the rear window defrost relay located in the Battery Junction Box (BJB). When the rear window defrost relay is active, the rear window defrost grid is energized.
If equipped, the rear window defrost can also be commanded on and off using voice commands or by touching the rear window defrost button located on the touchscreen interface. For additional information about voice or touchscreen commanded features, refer to the Owner's Literature.
The HVAC module deactivates the rear window defrost relay when one of the following conditions is met:
- The rear window defrost switch is pressed when the feature is active
- If equipped, the rear window defrost is commanded off using voice command or the touchscreen interface when the feature is active
- Ignition state is changed from RUN to OFF
- The 15-minute timer completes