One thing to note per the manual is that once the defroster is on, and
then switched to vent mode, the A/C remains on in "stealth mode". You
need to turn the A/C on and off to disable it.

I would rather see the indicator light on when the compressor is running
whether in defrost of A/C mode.

Check your manual, or was it in the 10 page Honda Civic for dummies (the
quick start guide).

Rick in NH

Steve Mackie wrote:
>>>When I first got my car every time I put the defrost on, the A/C would
>
> come
>
>>>on with it. It no longer does that, or at least I don't think it does.
>>>
>>>Is the A/C light supposed to come on when I put it in defrost or is the
>
> A/C
>
>>>is some sort of stealth mode? I thought the light did come on, but it's
>
> been
>
>>>months since I last used the defrost.
>>
>>I believe it's in stealth mode. It comes on, but the light doesn't.
>>
>>AC is necessary for defrosting, down to a certain temperature. Below a
>>certain temperature, it won't come on even if you hit the button.
>
>
> This morning I wasn't sure because it was 5°C, but this afternoon it was
> 15°C and the light didn't come on.
>
> I can't remember what it was in my Monte Carlo, but I think it wasn't until
> the outside temp was below 0°C that the compressor wouldn't come on at all,
> no matter what you did.
>
> Steve
>
>