It is always on unless you turn it off as mentioned above (holding down for 5 seconds or so) then in the DIC (same screen that shows you mileage, oil life, etc) will say "Stab Sys Off" and it will kind of flash...there shouldn't be any normal driving conditions that you would necessitate it being turned off...unless you consider doing mud/snow donuts normal driving conditions -- which many on this board may..
