Wbu is 4wd service light coming on?
So when I turn my 4wd dial into auto and 4hi it is is
fine and engages but when I switch to 4 Low takes
a little bit for it to engauge or seems like it's
engaging but then all of a sudden it says Service 4
wheel drive I'm trying to figure out exactly what it is
does somebody knows exactly what it is I would
greatly appreciate knowing what it is. It is a 2010
Chevy Silverado 1500 with the z71 5.3 motor