I decided to go to the Chrysler dealer today to see what they had to say. On closer inspection, I found that 7 of my 8 door hinges had some level of blistering under the paint, either on the hinge itself or on the raised flange of the door panel. The tech at the dealer took photos of each area, and said that I was the third 2018 Jeep today with corrosion. He showed me the dozens of photos on his phone. His next step is to file a claim with Chrysler.
What shame! I’ve babied this Wrangler since new. I’ve coated the underside with Fluid Film precisely to protect it our notorious road salt. I don’t off-road, keep it garaged, and hand wash frequently.
I’ve got a feeling this is a huge problem across all JLs and JKs. I’m going to look more closely at the next “jeep-up” event.
Update: 3 trips and 2 phone calls to the dealer, I finally got word today that the claim was approved. They farm out the body work to a local shop. I'm scheduled to drop it off on 10/11.