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Honda defroster reprogramming

8th Gen Honda Civic 2006 and up is the 8th Generation Honda Civic. It adds a new look to the Civic line-up. A really smooth front end separates it from previous generations while still carrying the reliability of the Civic name.


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Old 03-18-2007   #16 (permalink)
RBP LX
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I found instructions in a Honda Element forum explaining how to return to the factory setting. I have modified them to apply to the Civic. I have also tested them and it works!

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To deactivate automatic a/c feature:


1. Select dash vent button
2. Turn fan knob to off position.
3. Turn temperature knob all the way to coldest setting
4. Turn vehicle off.
5. Hold down both air re-circulation button and a/c button while starting the vehicle.
6. Continue holding for 7 seconds until air re-circulation button stops flashing.
7. Now when you select defrost mode the a/c compressor will turn on but so will the a/c light on the a/c button. You can now press the a/c button and turn the compressor on or off. Even when you turn the car off the setting will be stored.

To reactivate automatic a/c feature:

1. (Select defrost mode button)
2. Turn fan knob to off position.
3. Turn temperature knob all the way to the coldest setting.
4. Turn vehicle off.
5. Hold down both air re-circulation button and a/c button while starting the vehicle.
6. Continue holding for 7 seconds until air re-circulation button stops flashing.
7. After this, the a/c light will turn to green and it's back to factory setting!

Last edited by RBP LX : 03-18-2007 at 11:14 PM.
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Old 03-18-2007   #17 (permalink)
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Nearly 100 views since I posted this and no one else has tried it yet?

Last edited by RBP LX : 03-24-2007 at 11:36 PM.
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Old 03-30-2007   #18 (permalink)
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Re: Honda defroster reprogramming

Note: In the instructions to turn the AC light on in both defrost mode, so you can turn the AC Compressor off, you do not have to start the engine. All you have to do instead is place the ignition switch to the Run position. Also, when the recirc button stops flashing, continue to hold the buttons down until the AC light comes on, then release buttons. I did this to my 06 Si and my 06 EX

Last edited by sonitex : 03-30-2007 at 12:38 PM.
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Old 03-30-2007   #19 (permalink)
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Re: Honda defroster reprogramming

Great info hear!!!
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Old 04-05-2007   #20 (permalink)
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Re: Honda defroster reprogramming

Works for 2005 CR-V as well!
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Old 04-05-2007   #21 (permalink)
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Re: Honda defroster reprogramming

works for my EM2!!!

Id just like to say thanks again for the info!!!

It didnt work on my friends DC5 though...
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Old 09-13-2007   #22 (permalink)
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Re: Honda defroster reprogramming

Quote:
Originally Posted by KRM View Post
You may have noticed that when you turn on the windshield defroster, by default, the a/c will run to provide de-humidified air to the windshield..................
+1 Rep for you...just did it and it worked like a charm...thanks again
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Old 09-14-2007   #23 (permalink)
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Re: Honda defroster reprogramming

fuckin great info man... worked for me. i just did it 5 min ago
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Old 09-14-2007   #24 (permalink)
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Re: Honda defroster reprogramming

Worked on my 05 Coupe. Didn't really benefit me much the other day when it was cool and raining. The windshield would fog up even with defrost mode on, and I'd have to manually turn on the AC to remove the moisture.
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Old 01-10-2008   #25 (permalink)
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Re: Honda defroster reprogramming

Worked great on my 07 LX! So why doesn't the factory send them out this way standard equipment? Thanks for the information!

Quote:
Originally Posted by KRM View Post
You may have noticed that when you turn on the windshield defroster, by default, the a/c will run to provide de-humidified air to the windshield. That is the way Honda has set it up in most of its' recent models. To me, the annoying aspect is that in the defrost modes the a/c control is disabled and there is no way to turn off the a/c. In many situations (particularly warm, rainy conditions) it makes sense to have the a/c go on, but in others, like very cold damp weather, or when driving in heavy or blowing snow, when you are trying to minimize icing on the winshield, it doesn't seem to make sense at all. Also, the manual emphasizes how running the A/C decreases MPG and encourages owners NOT to run it whenever it can be avoided!

Fortunately, there is a solution to this problem that is not documented in the owners manual! As I said, it appears to work with most recent Honda models and I have tried it successfully on my 2006 Civic. Here's how to reprogram the defoster:
- With the key in the "Off" position, set the controls as follows.
- Blower control to "Off"
- Temperature control to coldest
- Mode button to select panel vents only (cannot be selected with the key off, so select this before turning the engine off before starting programming)
- Holding down the recirculate button AND the A/C button, START THE ENGINE. (Continue holding the two buttons) The recirculate button indicator light will flash for about seven seconds. Then the A/C green indicator light will flash on. The defroster is now reprogrammed!

Now the defroster will work as follows.
When selecting Defrost or Defrost + Floor the A/C will still come on, BUT so will the A/C indicator light, and the A/C button is NOT disabled. Now you can push the A/C button and turn the A/C off! It will NOT come on again if you stop the engine and then restart, although you can push the A/C button to turn it on if you wish.

Since in very cold weather I tend to leave the control in the defrost + floor with the A/C off, this works fine for me. Just remember to occasionally run the A/C for a while to keep the seals lubricated. (Just not all winter long!)
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Old 05-02-2008   #26 (permalink)
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Re: Honda defroster reprogramming

Quote:
Originally Posted by dextor View Post
Has anyone tried this on a Canadian 2007 LX Sedan yet? Can it be reseted using this method?
Also, is this even turned on in the Canadian Civics? Just because we have strong winters here...
The A/C doesnt come with the defroster in the 2007 canadian model, atleast not in my EX.
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Old 05-22-2008   #27 (permalink)
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Re: Honda defroster reprogramming

worked great for me too thanks dude
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Old 05-22-2008   #28 (permalink)
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Re: Honda defroster reprogramming

any code for the dc5??
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Old 4 Weeks Ago   #29 (permalink)
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Re: Honda defroster reprogramming

Nice, highly informative post...
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