2013 isx

I have the same engine. I've had that light 3 times in a year. Twice stayed on for like a day, went off. The other time stayed on like 8 hours went off. You should be able to get an idea of what the code is on your display.

Mine always had no loss in performance either, so I just drove it.

 

You are driving an electronic engine with DPF and SCR after treatment. You have several sensors, actuators and connectors that can cause all sorts of problems that have nothing to do with how the engine actually runs because they are all emissions related. With these engines, there is literally nothing you can do without knowing what code is being logged. So this is your next step, find out what code it is.

 

common problem. Moisture gets in the emissions systems and electrical components for the emissions garbage.