I don't seem to be having any problems with my truck, other than downshifting coming down hills in tow mode, sometimes revs get up a little high for my comfort zone.


Should I get the program flashed to the latest and greatest or just leave it the way it is?

I wouldn't worry about a reflash if you don't have any problems. For the grade breaking in tow/haul mode, as long as the rpm's are not above 3200 (the red line area) it shouldn't be a problem.

In tow/haul going downhill it will allow 4,700 RPM as I recall. Check your tach again 3,200 is where the broken red starts solid redline is higher.

broken red=yellow line