I have a 2005 Chevy Cav, bought used and i'm in Italy. On the instrument panel i have 3 warning lights that have been on since i bought the car, the "service engine" light, "trac" light and i believe the "abs" light. they all stay solid, no flickering or anything. car runs fine, no weird noises or anything.
I believe the issue is more due to the fact i'm in italy and the mechanics don't know how to reset the lights. Is there a way for me to do it, or could there actually be a problem i'm not noticing.

 

You could try disconnecting the battery for several minutes to reset the ECM and clear out the codes then see what comes back....
Make sure the key is NOT in the ignition when the battery is disconnected as there is the possibility that the ignition could be disabled and car can not be started.( theft deterrent)