I have a 2019 1000-3 LE, I agree check your flux capacitor behind the drivers seat when you lift the bed up you will see it. With only not even 10 miles on mine it would not go into Turf mode because my linkage needed adjusted. Very easy, takes longer to find your 10mm socket then to make the adjustment. Do a Youtube search about Turf Mode Selector Adjustment. I'm no help at all with your I$wd lite issue but I'm standing at attention waiting on the reply from the gentleman that will be working on one this weekend and what he has to say about it.