04 WJ with a 4.7. We have had some around 0 deg F temps here. I am aware of these Jeeps have a elaborate shift schedule depending on the outside temps and the TC will not lock up until a certain temp is reached. Yesterday it was around 2 deg, and I drove about 15 miles with no OD on the hwy. I pulled into a rest area, shut it down and restarted, took off down the road again and all was fine. I have seen this mentioned all over the internet but have never seen a solution, except maybe replacing the thermostat which seems ridiculous since it's blowing heat in 5-7 minutes. Anybody know of anything? I also read a trans temp sensor might be at fault but still never found any mention of if that fixed it or not.