It may be set in the firmware (controller memory) on the actual optical drive itself in the dash. Usually home players and drives will prompt and allow a couple region changes before being locked when the number of changes run out. You usually get prompted automatically when inserting a different region disc and sometimes there's a setting hidden in the setup menu.
If you put a local Region 2 disc in the drive, do you get any error message on the display? If you're not prompted about the region there might not be many options. For models that are designed for export markets Chrysler usually programs those types of settings on the production line or uses physically different hardware.
If you have a local FCA dealer they may be able to can check if there's any settings accessible through the dealer scan tool. As a last resort you might be able to pull the assembly out of the dash and see if the physical optical BD-ROM drive can be replaced with a generic PC component and install a new drive sold in your region.
Eric H. - '19 Pacifica Hybrid Limited - '04 Neon SRT-4 (eBlue/S2)
'92 Dodge Daytona IROC R/T - '91 Dodge Spirit R/T
'07 Ram 1500 - '14 CTS-V Wagon - plus some other stuff