I suspect they have your car down as being on "time and distance" service.btw why are you running your car on LL service schedule?
Dont listen to winrya there about checking when needs service. What you did there causes the service now to be displayed, because its the start of one of the ways to cancel service light.
Check you last bill from AC, if it says you had longlife service done then its not due till next year but if time&distance then you are due now.
I feel like a homo