I had one but they moved locations.
It's not necessarily about safety. I had a sensor go out, I changed it twice by the dealer and the light came back on. Of course the dealership is just happen to keep changing it out getting $. Not mechanically wrong or unsafe about the car. Finally went to a local mechanic who recommended someone to me.
Fixing windshield wipers, tires etc are necessary and easy. Paying $400 to replace a sensor to fix the engine light, once maybe ok. But if the dealer can't figure it out, and you don't want to spend thousands of dollars on diagnostics, you eventually find another way. Short of trading in a perfectly good running safe car.