This morning my customers check engine light came on MaxiSYS MS906. My customers was wondering what might be wrong before my customers bring into the mechanic. Could it just be because my customers need an oil change?
Check engine lights usually indicate an issue with emissions; misfire, bad sensor etc. Usually nothing to be worried about. Sometimes it will go away on its own after a couple days. If it persists, get it check out and fixed. I had an issue on my Elantra Coupe. Turned out to be a failed part, covered under warranty.