Message: I have a 99 RC 318 5speed 2WD... This past week, when I shut off the truck, removed the key, it continued to run, and the "Full Time 4WD" light came on. I read about a TSB with the AC on the 2001's but this seems different. Since it did it that first time, it seems to do it like every other time I shut it off. Does anyone have any idea why this would happen?