The see it leak theory is good, but most only seep, which you won't see, there is a difference between leak and seep, the fluid works its way on the inside of your tape covered harness to other higher amperage parts, then lights up. I see these at work, and as much as I don't want to see another one of these for the recall because I've done so many, it really should be checked at your soonest chance. If nothing else, you won't get anymore letters.