My 2019 double cab 5.3L has it and it is less noticeable than my 15- I had to run a Range AFM disabler in my 2015 because of the constant shifting and vibrations- The range made it behave like it should. My gas mileage was also very consistent , 15-16.5 mpg compared to my tundra's which ran 13-14mpg.
I will disable the new one also, once range can update my device, my commute is hilly terrain and the new truck has slight vibrations around 30-40.
I have a question for the group, when I drove the new 2019 on the test drive I made sure I traveled my normal route. There was no signs of even the slightest vibration or hesitation. Now I have bought it, there are slight signs of vibration under light load starting up hills or on level road when trying to accelerate.
Do you think the DFM is disabled on these trucks until you purchase them? This is a big question because it would speak towards unfair sales practices?
I wondered this on my 2015 also because when I test drove it it also was very smooth. If I didn't find the range device it would have been sold.