Rear/Mirror Defrost for Longer...

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Fizzy

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Joined
Dec 18, 2020
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Location
Alberta, Canada
Has anyone figured out a way to make the rear window and mirror defrost stay on longer? It seems to stay on for maybe 15 minutes, then it turns itself off. Up here in the frozen north, that's just not long enough. I'll look back and the window is frosted up again.

Is there a Forscan setting for it? Or is there a safety/overheat concern that Ford makes it limited to short bursts?
 
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