A little more on this....
Yesterday the tranny acted like it didn't want to upshift from 3rd to 4th and then to OD. It tried to run 3200 at 50 mph. It eventually shifted normally and I haven't had the same problem since but the temp guage and tow haul lights are still active.
Mustangman,
I did run an OBD scan but had no high tran temp readings. I got an "unknown" code of 1334 if anyone can help with that.