How do you reset the oil change light on drivers information center in an 1989 Cadillac Eldorado?

The 1989 Cadillac Eldorado doesn't have an oil change light in the driver information center in the same way modern cars do. There's no single button or automated system to reset it. Instead, the reminder was likely a simpler system, potentially involving a sticker in the owner's manual or a note written on the car's maintenance schedule.

To handle the oil change indicator (if there was one besides the simple mileage reminder):

* Check your owner's manual: This is your primary resource. Look for a section on maintenance schedules or indicators. It might describe a specific procedure or just recommend a mileage-based oil change.

* Look for a simple mileage-based system: Many older vehicles relied on the owner to track mileage and change the oil at the recommended intervals. There might have been a sticker or a spot to write down the mileage of the last oil change.

* There's likely no electronic reset: Don't expect to find a button or menu option to reset anything. The technology simply wasn't there in the same way as in newer cars.

In short, for a 1989 Eldorado, you're responsible for manually tracking oil changes based on the mileage recommendation in your owner's manual. There's no electronic system to reset.