I had the rear main seal replaced at the dealership today and everything was well. Drove to Fort Drum (about 30 miles) for the Volunteer of the Year awards ceremony, got gas afterward, and drove back home (another 30 miles). Just as I got into town, the Check Engine light came on.
I thought maybe a loose gas cap so I pulled into a gas station, unscrewed and re-tightened my gas cap, and that seems to be alright. Check engine light stayed on. It's solid on, not blinking. Took it home and I don't see anything obviously wrong with the Jeep - nothing is leaking, all the gauges are normal, all the various caps on things under the hood are on and in place as far as I can tell.
I did hear a kind of funny sound when doing really tight turns, like a squealing sort of sound, but that might be something completely unrelated? (I have had a new steering stabilizer put in recently and wonder if that maybe has something to do with the sound?)
I am going to call the dealership tomorrow morning when I get up to see if I can bring it in to get it diagnosed. I am assuming diagnosing the issue would not take very long. I gather that as long as the light is on solid, it would be okay for me to drive it with the light on? (That might be a dumb question, however, please bear with me. I don't know a whole lot about vehicles.)