In Arizona, the procedure is:
have your discussion with the Service Manager, document the he** out of it, keep it all in writing if possible.
when he blows you off, ask to speak with the GM, keep written records.
When he blows you off, ask for the Zone Rep. They have lots of latitude, but if your beef is a *hot* issue (like steering problems) they will tell you there is nothing they can do. You can ask to talk to HIS boss, but chances are you not get that chance.
Your next stop is the Attorney Generals Office of Consumer Affairs. They will make you fill out a form and include ALL of your
documentation... . If they accept it, you will hear from a consumer advocate, who will request more info... Finally they will contact DC and get their input. .
Be ready to spend LOTS of time with record keeping. Documentation is the key. .
In my own case, if I was paying myself minimum wage, I could have paid for the repair 3 times with the time I spent on my complaint. I did get a credit for the parts. So it was sort of a victory. .