RTFM

Read the F****** manual. (Not trying to be rude, just had to use the acronym)

Its a maintenance light and it is based on mileage. It will flash longer until eventually it will saty on constantly. Look directly under the kick panel right above the gas pedal and youll see a black box with a grey or black butto. Turn the key to the on position and press and hold the button. The light will illuminate and stay on for about five seconds. After a few seconds, the light will reset.

Itsh just like the dummy reminder on other hondas that turns from green to red. :fawk: