Why would the maint required light come on in a 2005 Honda accord?

Honda programs the light to come on at certain mileage intervals. After 5,000 miles, it will blink for 5 seconds upon starting. After 7,500, it stays on until reset. The purpose of the light is to remind you to change your oil. You should perform the reset sequence each time you change your oil. Once reset, it will come on again at the aformentioned intervals.