I was told the same thing when I ordered mine. It's odd that web-based configurator and the trim pamphlet indicate that's not the case. Ford should detail which tires size the FX4 gets on the description.
Where were you able to find the info detailing tire size? The only information I could find on the package stated AT. I attached the pdf which led me to believe they are 235/65's. Maybe I am interpreting it wrong.🤷
I think the 235/65R17 may come standard with with the FX4 package.
The Marverick trim pamphlet has the FX4 listed as getting AT tires on unique aluminum wheels. There are only two AT options available for the Maverick.
1) 225/65R17 AT, which are listed as an option for XL & XLT (FWD only)...