Howdy, Just got a 2003 Winn. Mini 24' V10. When I push the button to turn the overdrive off (at the end of the shifter lever) no light come on and it does not shift down to 3 rd gear. Any one else ...
I would suspect the "tow/haul' function would do the same thing. I'd check the fuses then the switch contacts itself. In some vehicles its on the same circuit as the backup lights: