Dyna Glide ModelsSuper Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
Im pretty sure this is normal function (just letting you know that its checking all its sensors) i think if it stays on longer than 3-4 seconds, or if it goes off then comes back on, that indicates a trouble code.
But you can always check your trouble codes to make sure everything is all good. You can search this forum for the how too and code meanings.