So I was cruising along the highway and then the display for maintenance required becomes half amber and half red. I did an oil change about a month ago along with replacing the spark plugs with the iriduim ones and a transmission service last week. I have a set of plug wires that I have not yet installed and also a transmission mount. Is there anything else I need to change? The cap and rotor looks fine to me. What could have cause the light? Also If I change whatever part that is needed, will the light go away or is there a way to reset it?