Where do I find the diagnostic socket on this model?

Hello,

The diagnostic port is located under the right side of the steering wheel. Behind the little storage compartment just ahead of where your right knee would be. Just pull out that compartment and you will see the port.

I have attached pictures below for reference.

Please let me know if you have any questions.
Thank you.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing