2015 LTZ - Bad Catalytic Converter - 65K miles

[nkaufman]

Hello,

Took the car to dealer after getting Engine Light on.

They diagnosed that catalytic converter has gone bad, some error code that is quite commonly known. Not sure I've seen this happen in other makes and models. Fully covered in Warranty.

Also, mentioned that Battery had one cell gone bad, which is understandable since car is about 5/6 years old.

 

[Gsf1200m]

I had the cat go bad on my 2008 Scion xD. I forget how many miles it had but I bought it new and only had it 2 years so it wasn't too much. Also covered under warranty.

 

[nkaufman]

From a website:
"Almost all problems with a catalytic converter are because of an engine issue. It is most often caused by excess fuel entering the exhaust system due to an incorrect air/fuel mixture, bad spark plugs, incorrect engine timing, failed oxygen sensor, or other issues where fuel leaves the engine’s combustion chamber unburned."

Does that mean replacing the CAT is just fixing the symptom and not the Cause? If so, then there is something that will go wrong again..

 

[nkaufman]

Dealer replaced Catalytic Converter for Free under some warranty (8years/80K miles). got a new battery.
Also had a friend replace spark plugs. Car seems to be running fine till Next Time I guess