well if you change your own oil then i guess you don't have a warranty anymore because last i knew of if you even do a simple oil change under warrant it actually voids the warranty
but it should be in the manual if your able to reset it yourself, my mom has an 06 impala with that oil life in the display and when she takes it to a shop someone at the shop has to reset it for her, not sure if its a simple thing you can do or if it has to be a mechanic
look in your manual and if you can't find it then call up your local honda dealership and ask to be transferred to maintenance or the shop then ask someone there, they should know
