Hello,
For those who are having issues with the SYNC4 navigation getting stuck, go to your Ford garage and upgrade to the latest version of sync and also rewrite the following modules: APIM, ACM, SBDO, and BCM.
If they refuse to do this, give them the following reference from Ford:
SSM 52379 or TSB-24-2034 - Drive mode defaults to normal mode while driving and message displays in the center display screen with or without DTC U0253 stored in the ABS module.
Seems that my folder dealer didn't update the SYNC4 version, but only did a module reprogramming... I'll test over the weekend if the situation is the same or if things are improved