My experience:
I printed out a few pictures from this thread showing the peeling paint problems other people were having. I also printed out the May 2007 Honda Service Bulletin detailing the problem and the recommended fix.
I took these with me to Honda and spoke to a service representative. He told me I'd need to speak to a service manager, and the service manager wasn't available. He told me to come back the next day.
So the first lesson: Call in advance and find out if a service manager is going to be there when you show up!
I came back the next day and the service manager had called in sick. D'oh!
Second lesson: Remember the first lesson.
The third time I went back, I called in advance and I finally got the service manager (after waiting about an hour). I showed him the bulletin and the places where the paint was peeling. I explained that the fix as I understood it seemed to be to take off the bumpers, repaint them, and then reattach them using spacers between the bumper and the body.
(The service bulletin does not explicitly say that Honda should repaint the bumpers, it only says that they should install the washers, so this was my way of making sure he also realized that repainting would be necessary.) He nodded. He took my copy of the bulletin, wrote some notes on it, and said he would authorize their collision center to do the work under warranty. They would give me a loaner car while my car was being fixed.
I now have to make my appointment with the collision center.
I never had to show the service manager any pictures of the peeling paint I had printed out from these forums, but they may still be useful when dealing with the collision center. I can show them the kinds of damage that could be lurking unseen when they unmount the bumpers, and hopefully convince them to at least strip and repaint the entire area where the bumper meets the body rather than just patching the flaking areas.
I definitely advise taking
the service bulletin with you if you want to convince Honda to repaint your bumpers (if your paint is peeling) or put in washers (if the car is new or the paint is not peeling). It gives your argument that this is a Honda Fit problem a lot more weight.
I'll post again after the bumpers are fixed up. So far, so good.