P.S.: I had a 93 Chevy S-10 Blazer 4 door that had an issue the dealer could not resolve after 2 attempts. They called in a regional guy from GM to come out and see what could be done. They did what he suggested the third time and was still a no-fix. When I mentioned invoking the MA state lemon law (which is an arbitration process), GM immediately offered to do a voluntary buy-back to resolve the issue with my new Blazer and make me happy again.
They paid off my loan in full, sold me another at true cost (factory invoice, not dealer invoice) and got me into a lower interest loan on the new one. I had more options than on the one GM bought back and ended up paying less per month than before!
I found out later, that because they bought the vehicle back outside the lemon law process, they could throw the Blazer back on another lot and not have to disclose anything. They could just sell to another customer and hope they never have anything resurface with the problems I was having. Once tagged as a lemon, all the problems have to be fully disclosed and the value of the vehicle drops considerably. Not many people really want to spend a lot of money for something labeled as a lemon... So, settlement outside the lemon law process before anything starts with that allows the company to resell the vehicle for full current retail or close to it.
That is how my problem was resolved. I was happy.
But, my problems were documentable and were present before and after attempts were made to fix it...