Question

I have a 2011 Chevrolet Traverse with code P0420. How do I fix the problem?

Answer 1

Hi there,

The P0420 code stands for the catalytic converter below threshold. If the car has less then 80k miles and you are in the US this would be covered under the federal emissions warranty.

Answer 2

P0420 CHEVROLET - Catalyst System Low Efficiency Bank 1

Read more: https://www.autocodes.com/p0420_chevrolet.html