I was told my my dealer not to use the kill switch. I then looked in the owner's manual and it says the same thing - do not use the kill switch. I asked the dealer why and he said that after turning the kill switch on and off 3 times, it resets the data in the ECU that has been acquired via the oxygen sensor. It then takes time to record all that data again. No biggie but may may take awhile to dial itself in again. I guess this feature could be used if the bike is moved to a higher or lower elevation or a new climate, i.e. moving to Vegas from CT, and you want to expediate the ECU's adjusting for the new environment.