The manual states that it should be used in ICY, SNOWY or OFF-ROAD conditions. Rain? Well, frozen rain is ice...but shit if you need 4x4 to drive in RAIN, you need help.
I love you all on here and frankly, I don't give a SHIT what you do to your trucks, but this is the reason I'll hardly ever buy used vehicles. Sometimes, you just don't know what you're getting.
Does rain qualify for dry pavement? Well, no, because it's wet. Does wet pavement qualify for off-road, ice or snow? No. ****, let's sue Ford!