So I took teh xr out today for like teh 1st time in 2 months, was driving for about half an hour every thing workin fine then all off a sudden it just didn't want to kick-down in gears, I tried a few more times nothin/sluggish. So I pulled over switched it off/on then everything was fine drove it for teh rest of the day with no problems. Any one know whats wrong or roughly how what $$$ I'm lookin at to get it fixed. I have two other cars ATM so it's kinda teh 3rd wheel so if it was gonna be big $$$ I'd prefer to just part with it .

Possibly gone into Limp Home Mode? Until you turned it off and started it up again.