Do the 2011 3.7's have an Overdrive button?
I actually put mine (2012) in hill assist every time I get in the car and turn it off once traveling around 50 or higher for an extended period of time, like out in the country or on the highway. For an untuned car, it just feels a little better the way it holds the RPMs a little longer and downshifts automatically when slowing down.
2012 Grabber Blue V6 Convertible
1995 Red Trans Am Convertible
1979 Gold Trans Am