Craig, firstly the the Dealer System is not a "CAN BUS Programmer" the system handles multiple different interface protocols, the diagnostics interfaces between Diags PC & car/bike can be K-Line, CAN-Diag or Ethernet dependent on model
On the TR650 the diagnostics interface is K-Line, CAN BUS is only used for comms between ECU's BMS-E, Dash, ABS & DWA
Re the Service Lamp it is likely to be on due to the 2011 service date and you should not have problems setting a new service date since it is clear the GS911 is communicating with the bike, were you using USB cable comms to the GS911 ?
Which model of GS911 did you purchase ?, what PC are you using (PC/MAC/Windows Version) and what applications have you installed ?