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Defrost issue

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Old 08-12-2017, 01:44 PM   #1
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Default Defrost issue

My ac works. The air blows. In the mornings, when I pull from the garage, my windows fog up. When I turn the defrost on, it blows cold air, like the ac is on. I make sure that the ac isn't on or the recycle. After I get a few miles away from home, all of a sudden the defrost starts working. Any ideas?
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Old 08-12-2017, 04:43 PM   #2
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Default Re: Defrost issue

What kind of car is this?
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Old 08-12-2017, 04:57 PM   #3
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Oops, sorry! Civic EX.
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Old 08-12-2017, 07:35 PM   #4
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Default Re: Defrost issue

The A/C is automatically turned on when you use the defrost setting on the mode dial.

If it is too cold for you, adjust the temperature control dial.

See excerpt from owner's manual:
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Old 08-13-2017, 02:47 AM   #5
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Default Re: Defrost issue

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Originally Posted by Michelle Price View Post
My ac works. The air blows. In the mornings, when I pull from the garage, my windows fog up. When I turn the defrost on, it blows cold air, like the ac is on. I make sure that the ac isn't on or the recycle. After I get a few miles away from home, all of a sudden the defrost starts working. Any ideas?
Your heater blows cold air until the engine fully reaches operating temperature?

I'm stumped.
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Old 08-13-2017, 11:52 AM   #6
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Default Re: Defrost issue

The heater gets heat from the engine coolant. When the coolant gets hot and circulates through the heater core is when you have hot air thru the vents.
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Old 08-13-2017, 11:58 AM   #7
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Default Re: Defrost issue

The first thing that I do, is put on the heat and defrost mode on high.
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Old 08-13-2017, 12:00 PM   #8
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Default Re: Defrost issue

Is there a way to upload a picture of how I have my settings?
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Old 08-13-2017, 04:25 PM   #9
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Default Re: Defrost issue

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Originally Posted by Michelle Price View Post
The first thing that I do, is put on the heat and defrost mode on high.
That won't make the engine's coolant magically change from cold to hot. The reason your defrost is cold when you just started the car, is because it functions off of the coolant in your engine via the heater core. So, until the engine is warm, you won't get any heat inside the cabin of the vehicle.
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