Flashing Green Key Dash Light

When weather became colder, the 'flashing green key' dash-light indicating an ignition lock-out will flash. I know that it's supposed to do that when engine shuts down, and IF the ignition key isn't 'recognized.' The Civic WILL start, and WILL run w/no hesitations. When the weather was warm (ambient temp above 50-degrees farenheit), This wasn't an issue. Any clues on what relation cool weather would have on whether this lamp flashes?

No, it does that every time you turn off your car. Just telling you it's changing the code.

Jeremy, thanks for the response. However, it does this when it's running, also. I read in the owner's manual that the green key will flash upon shut-down of the engine. However, if I go to start it later, say to leave my employment for lunch, after starting, as it runs, the green key flashes.