Ok thank you sirThere is a recall now on all diesels due to the fuel pump. It started with just a certain number of affected pumps but just a couple months ago they updated the recall to include all diesels. So yours is probably stuck due to the recall and they are waiting for the replacement parts before releasing it to the dealer.
https://www.jeepgladiatorforum.com/...-pump-hpfp-failure-2021-2023-gladiator.69076/