I'll just say this.Electrical issues and apparently nobody can figure it out. Dash will light up like a Christmas tree. Service shifter will appear. Power steering goes out. 50 plus codes come up.
1. Had those issues. Service shifter light coming on, lights flickering, and shifter lights flashing. Decided to unseat and reseat all electrical connections. After I tightened the battery terminals back I gave the negative post a little tug and it came right off. Even though it was as tight as can be. Turns out for some reason the battery post was a little small and because it couldn't be tightened enough, it was a bad electrical connection. I bought a $2 shim from the auto parts store and rode for another 20,000 miles without that issue until the battery finally went bad. New battery in and rolling!
2. Most of us have had other vehicles with just as many issues. I've had Broncos, toyotas, a honda, and a mazda. All with multiple issues that cost a lot of money. At the end of the day, automobiles are built by humans which make mistakes because they aren't perfect. And remember, repair shops were slammed full of cars way before the 2020 Jeep JT Gladiator came out.