well I've tried it again and still does nothing with my truck, park brake set, trans in neutral,no foot on the brake,turned cruise on hit set,no change,hit accel no change, tried every thing seat belt on off, you name it....no change. I had the feature turned *on* as soon as I knew about it ,and I believe it was enabled when I had the dealer do it as the mechanic knew exactly what I was talking about when I went to get it turned "on" and he tried to get it to work for quiet a while and was not able to make it work. so their is either something wrong with my truck or that function is not on it . and it is a manual trans. truck. built 05/08.