The current America/Speedmasters do not have any digital displays. Triumph is now changing towards a new speedometer with digital odometer.
On my 2010, I have to hook up an OBDC II cable and use my computer to read codes, and run diagnostics. I use TuneECU
that's available here:
TuneECU The developer of TuneECU has made this tool available for no charge.
H.