when I place the key in my 02 GTX DI, it flashes MAINT along with red warning light for a few times and then settles down. The ski starts and runs fine.

I just noticed this and can not tell if it was doing it all along ( I bought it a few weeks, used, 180 hours)

I searched google and a few forums, but most of the postings contain references to MAINT flashing along with some malfunction - limping, overheating, low oil e.t.c . I do not notice any of this - should I be still concerned ?