I have a similar issue; it is intermittent but increasing in frequency. Dealer will take it for obtaining all the "numbers required for a replacement on warrantee". I live in The Yukon so not a humid climate. Screen is clean too. The screen just stops responding to any touch commands. Then...
I had similar issue, Jeep (22 Gladiator) worked fine, then it would not go into park, warning message on dash "SERVICE TRANSMISSION" , Flatbed tow 100KM to nearest dealer. Cause? a rock was on top of transmission blocking the shift from going into park!