OK often time there is no further post when a solution is found. To help, here's the solution to the 4x4 light in my case. Apparently, it was the steering angle sensor. Since the steering wheel was cocked about 3 degrees to the right , a front end alignment and straightening the steering wheel back to center resolved it. No light now.
Still chasing the intermittent "check coolant level" message.. thinking it's a bad sensor on the expansion tank..