Sputtering at highway speeds

My 2017 DCLB SR5 V6 sputters at highway speeds, usually down long stretches as I approach hills. I've learned to apply more gas in order to make it downshift and make the shuttering go away. Anybody else experience this? Is their a known cause and fix?

 

My truck is a Manual but on occasion I do get a weird low RPM stumble, most notably when starting up longer hills. On the days it decides to do that I will have to downshift in order to make it up the hill.

 

Never noticed it in mine, and I'm on hills all the time. Had the CPS recall done?? Or was that fixed on the 17's??

G.