Tire size and Mini Maxx

[08IH6.4]

Got a mini max for my 08 6.4. Just put on 35x12.5 and was wondering if I can change the tire size with my tuner. I looked at the manual online and it says a change tire size button should come up in the menu but I cant locate it.

 

[Jonnydime]

You can only change tire size when you install/reinstall a tune to the truck.