On my latest vehicle, you just look at the trip odometer and it tells you "xx% of oil life remaining." If the value gets to 0% it changes to "GET YER OIL CHANGED YA $#!%@!! IDJET."
It also announces whether a tire has lost pressure, if a door is ajar, and a few other sometimes interesting things about the condition of the vehicle.
But if you switch off the ignition before you make your notes - IT DOESN'T TELL YOU ANYTHING, including how many miles you've gone since the last fuel stop so that you can make the entry in your op log.