I have a 2005 CC with a 5.3 the Performance option for the transmission is set to "Class 2". Is this the correct setting so that my tranny can downshift once I press the tow/haul button? The other options are "No switch" "One switch" "Two switches" and the one I have on now "Class 2". I'm kind of new at this thanks for the help in advanced.

 

On your truck leave it like it is in class 2.
If you want to adjust tow haul settings,it is tagged as performance in hptuners!!

 

Ok thanks I aprreciate it