I’m old enough to recall cars that had useful gauges – the cooling-system temperature gauge, for example.
Nowadays they have on/off indicators, referred to as “idiot lights.” Such as the check-engine light. The idiot light that this morning is illuminated in my car. I’m writing this article while sitting in the dealer’s waiting room until they attach a computer to my vehicle to diagnose the problem. (And then charge me a bunch of money to fix it.)
The car’s computer system stores a diagnostic code that the dealership’s computer will retrieve, at least as I understand it. What I don’t . . . [more]