RFA low battery?

[Tonyrodz]

Twice this came up on my odometer display. Actually it says RFA 1 Battery Low. What does this mean? Does it have anything to do with the remote battery? I was using my brand new remote everytime this came up. Now I just used my old remote and the same thing displayed.
what is this? Thx.

 

[ATL]

it is in fact the key fob battery

 

[Tonyrodz]

thx