Model Y Rear Defroster Question

[HighVoltage717]

I noticed only the bottom half of the rear defroster seems to heat up. Am I correct in saying the top grids are antennas? Is this normal?? Can anyone offer some insight?

 

[T3SSY]

I'm having the same query, check out this thread

Rear Defrost Model Y

Morning all! I just had a window issue with my Model Y and had some tech support over the phone. Whist fixing the issue they asked me to check on something to see it if was enabled ‘Enable Rear Defrost’. On my car it was not. The service tech told me a lot of new MYs left the factory with this...

teslamotorsclub.com

 

[Bikeman]

I noticed mine only defrosted the lower half today, once a noticable snowfall happened today. Probably normal.