If you bought something, you can repair it, right? It's not that easy.
The other week, my car was at a technical check. It is a hybrid and they wanted to analyze the exhaust fumes. Yet, the car doesn't start the combustion engine before it reaches a certain speed - the software says so. It was quite entertaining watching them get more and more upset with my car - yet after 10 minutes they found what they had to do to let the software know that it needs to start the "dirty engine".