Id have to check but I just leave it engaged. I have a cut off twist type switch under the bonnet. So only turn it on when I need it or a high chance I’ll need it. Happy to report that after 1 year I used it on our ill fated trip to the outback which resulted in our friends rolling their camper. D4 hidden winch to the rescue. Certainly made a couple of eyes pop when I furled out the winch from behind the plate.
The only risk of being engaged is it “may” fire up on its own. Used wisely I think this is very unlikely and secondary to not being able to engage a frozen gearbox

