Check Engine
So many cars have the Check Engine light on. Pretty much every cab does, and I would venture say 20% of all other cars. Manufacturers should build in a way to reset it, holding down a couple buttons for a few seconds. Instead they want you to go in and spend money in the dealership to get it fixed. Very weak. People are lazy, and it takes them weeks or months before they go get it fixed.
In a way similar the ever blinking 12:00 in many people's VCRs or other electronic devices. Can't stand that. At least that is an easy one to fix, takes but a few seconds.

