The air suspension system is really a great system with many benefits and works very well. I had Air suspension on the 2014 before this 2019 and no issues what so ever.
I've hated them ever since my old Lincoln Mark VIII and the system started to go. Replace one bag and another goes, replace one pump and another bag goes, replace the motor and something else blows. It was extremely expensive as the system got older, all the rubber parts started to get fragile and leak and the pumps would have to work harder and then burn themselves out.
Horrific. Now, that was two decades ago, so I'm certain the systems are better now. But the fact that the dealer can't find the issue and has to keep replacing parts willy nilly really seems almost identical to my issues way back when.
If I had to guess, FCA killed the lifetime warranty specifically because of the cost involved on the upkeep on this air suspensions!! J/K.. sort of.