Nothing to do with the other Jeep brand models. Do you only wave at 2 or 4 door models. The Gladiator falls in the same category its a four door with a pickup. :)
I have a 2019 JLU. From day one I found the FCW very spotty. You can search some threads on this. Mine only seems to go off if you are approaching another car that is stopped and you are approaching it at a faster speed. Egg. A car in front of you is turning and you are approaching quickly but...
I have had mine to the dealer twice for this. Both times they said this is " normal " oxidation. They checked every Wrangler in the shop and they were all the same way. Mine does operate fine just an eye sore.
Had my Jeep for 1.5 years now. Finally broke down and went through twice this summer mainly to test it. To my surprise not one leak. Do recommend taking off the antenna prior as the first time I went through I thought it was going to be a goner.
I have a 2019JLUR for about a year and a half with 19k on it. I live in the North East and have this top. Best decision I have ever made. It has been snowed , rained on , ice and hail. No issues to date. ( Knock on wood). The top is made from a premium material. The convenience is great...
Defroster looks like the rest of ours (Mine works fine). Took mine to two dealers over it. Every Jeep in the shop looked the same. They said it was just oxidation.