So this morning, I was moving along at 80MPH and the torque converter unlocked. It was a very cold morning and I noticed that my coolant temp was well below 160. It stayed unlocked until I hit some traffic and slowed down a bit.
I understand that the TC doesn't lock until a certain temp (I haven't looked at the tune yet.) My thought is to change the thermostat to something hotter and/or lower the lock up temp.

Any thoughts or advice on this?

 

That's exactly what it was, Trans Fluid Temp was lower than the Lockup Temp. Cold air does that, I'd leave it alone.

 

OK ... good to know.

 

Lose the cold thermostat. There is no benefit.

 

I've had stock 190 deg Thermostats do the same in vehicles, it's the cold air just what it is.

 

Yep, will not lock until warm, I feel like there was a way to bypass that but its been so long I cant remember.
I just looked on HP tuners and I dont see a table for it for a 0411 pcm

 

Nope I've never seen one on any Gen III LS stuff.