Yep..you are correct. Went back to my original paperwork and it sure does have the tow prep package. I remember the wife just loved this vehicle on the lot and wanted it...don't even have a hitch on this vehicle and I will never tow anything...crazy!!
Do you remember where you saw the oil on the ground? Mine is mid way between the front and rear of the vehicle.
I didn't see any oil on the ground. As far as I know, the pinhole leak developed while my wife and I were out running our errands and I noticed an increase in noise as I was pulling up to a traffic light. While stopped at the light, I noticed smoke coming from both behind me and from in front. It was pulling away from the light that I noticed a definite increase in engine noise that even my wife said something wasn't right before I did, that I found a place to pull over. When I looked under the hood oil was splashed all over the place and I didn't pay attention to any oil drip in the parking lot of the park we pulled over in, so I can't help there. Oh, and before we got that far, I noticed that my rear window had dirt on it, which is not unusual since we live on a dirt road and there was a lot of tree pollen in the air, so I was frequently using the rear window cleaner to clear off the rear window and that day, I just could not get the window to clear off, there seemed to be something on it, but I wasn't sure what it was, at the time. While I also agree that it could be a transfer case or differential leak, making sure its not the oil cooler hose is, IMHO, more important because it can leak out very quickly. Although I am not sure when the leak started, I was using my HL the day before, so it could have started then for all I know, but if it only developed in the time from when we left home to where we parked to await a tow truck, we lost 3 quarts of oil, it was roughly 1/2 hour from our house to that point, roughly about 12-15 miles. Not to downplay a leak in the transfer case or differential, but it sounds like the leak is slow now and likely won't increase much if it is one of those two issues, while if it is the rubber hose for the oil cooler, then it could very well increase quickly, IMHO. Ruling that out should also bring some peace of mind and narrow it down to the transfer case or differentials.
Keep us informed of what you find.