The "check oil light" and the oil change notification are very different things. What message are you actually getting now?
Catalytic converter failures aren't usually a result of bad cataytic converters. They are usually a symptom of another problem. What is the exact code you are getting?
Catalytic converter failures aren't usually a result of bad cataytic converters. They are usually a symptom of another problem. What is the exact code you are getting?