Some pics to hopefully help folks out.
Press the center button to get your options up, and arrow down to the "System Settings"
Scroll to the "Service" option:
This is what it looks like if your engine isn't running:
This is what it looks like with engine running - notice the reset option in the lower right:
After pressing the button to select "Reset" you can choose to change the service interval, or turn it off altogether (which is what I selected):
Press the button to confirm, and exit back to your display.