Turn the RUN switch to RUN, do not touch the throttle.
Turn on the IGNITION SWITCH, wait for the CEL (Yellow engine light) to turn OFF.
Turn off IGN only, wait for 10 seconds and repeat this sequence 3 more times.
After this, go to your dealer and get the NEW ECM Flash installed in the bike.
What it does is keeps the ECM awake for an additional 10 seconds and gives the TGS (throttle grip sensor) time to settle into a ZERO state, and it is a should be covered under the warranty and a free ECM Flash.
If they aren't aware of the fix, refer them to HDNet, there is a document that details the warranty procedure. Tech Tip 380
Here is an snip of that Tech Tip.
"....In the interim we have released revised calibrations in the latest version of Digital Tech to alleviate the high idle concerns for those customers experiencing the condition. The current software version (1.004.001) and details of the changes can be viewed by selecting the What’s New button on the home screen of DTII. This info is also on h-dnet under: Service>Tools & Equipment Info>DTII>Version Updates-What’s New. The new calibrations will leave the ECM powered up for 10 seconds after key OFF to complete housekeeping, allowing the rider more opportunity to release the throttle grip, so the throttle control can return to true zero before the ECM power is shutdown. This should eliminate rider induced zeroing issues. Additionally, the new calibrations will be less sensitive to voltage changes due to an increased dead-band in the operating strategy. Under certain conditions and riding styles some customers may notice a slightly different throttle feel, or comment on reduced engine responsiveness. This is due to the increased dead-band and will feel similar to a loose throttle cable adjustment on non-ETC (electronic throttle control) vehicles. Therefore, we recommend only re-flashing vehicles for customers experiencing the high idle concern and wait for the next version calibrations before updating vehicles on a wider scale. SE Race Tuner and SE Super Tuner calibrations have not been updated at this time, and re-flashing a stock cal over a Tuner cal may only temporarily alleviate the high idle, until you re-flash back to a tuner cal. It is recommended anytime you replace ECM, TGS or Re-flash the calibration to cycle the Ign. switch 4 times, waiting 10 full seconds after keying off between cycles, to relearn zero TGS
position.
The following warranty credit procedures will apply to domestic dealers only:
Warranty credit will be allowed for re-flashing the calibration at the usual rate.
For OE calibrations including CVO, file an MC claim using labor code 7804 for 0.2 hours
labor."