I have a 2004 Hyundai Santa Fe with a 3.5L engine, AWD (4WD), and 97,800 miles on it.
The Multifunction Indicator Light just started coming on a couple of days ago and it stays on most of the time while driving. It's a yellow indicator light on the far left side of the instrument panel right below the temperature gauge.
The manual says, "This light illuminates when there is a malfunction of an exhaust gas related component, and the system is not functioning properly so that the exhaust gas regulation values are not satisfied."
I have a general idea of what that means, but I am curious as to what some of the possible causes of this light coming on may be.