Check Engine Light on at 32k kilometers?

[caper26]

Just at the title says. check Engine Light came on with 32,500 kilometers on my 2010. That's right. Very low km's, with engine light on. I had the dealer switch the oil to the upgraded synthetic (blend?) from the very first oil change. I use Lucas gas treatment occasionally. Right now my only reliable car is my 81 Z-28... My 2000 Xterra is on its 3rd major visit to the mechanic in under a year as we speak. Of course I don't want to visit the dealership which is 1/2 hr away, and spend god-knows-how-much on computer scanners, etc... That stuff should be free while it is under warranty...