That’s very true - I don’t know anything other than what the article says: “which shut off engines to save fuel when vehicles are stationary.” I mean, driving a 20-year-old car, I don’t have a clue about a lot of things. lol
Per GM:
System is not activated until engine warms up.
System is not activated till you reach 15 mph after last stop.
System is disabled if engine is needed for AC.