Sorry, can't answer your question about Chrysler 7.54, but I have a question for you.  How do you post photos on this forum?  I am wanting to post screen captures regarding Subaru 4.01 in the Asian Car subforum, but can't see a way to do so.  I would appreciate some guidance, since obviously you have it figured out.  Thanks!

 I found that apparently in the Dodge 7.54 update you can no longer get to the update tire pressure threshold function, at least for the RAM vehicles.  The menu item is still there but it takes you to a parts number listing when you select it.  Hoping an update will soon be out to rectify this.....