The Auto Start - Stop is said to be specially tuned for truck use and will not activate when in tow mode or four - wheel - drive. (topspeed.com)
Selecting tow mode on the seven - speed automatic transmission changes the shift mapping so the QX can hold gears longer during acceleration and downshift earlier when decelerating. (automobilemag.com)
I think I remember working on something that was stuck in an «emergency tow mode» that purposely uncoupled the power flow path to prevent damage (likely dry pump burnout) during flat towing. (mechanics.stackexchange.com)