I also need an answer to this question. I attended Bike Night at my local HD dealer last night and asked this question. I had 3, count them, 3 HD techs and their supervisor and none of them had the answer. They pulled out their Owner's Manual, Service Manual and Dealer Prep book and it did not address this anywhere. They suspect it may be set via a laptop hook-up. Anyway, they are calling their area rep today and will provide the answer. I'll post it once I have the answer....this is nutz, isn't it?