How do you reset the change oil message on driver information center a 1990 Cadillac eldorado?

The 1990 Cadillac Eldorado doesn't have a sophisticated driver information center like later models that allows for digital resetting of oil change reminders. There's no button or menu to press. The oil change indicator light is likely a simple bulb controlled by the car's computer, which is triggered by mileage or time.

To reset the oil change indicator light in a 1990 Cadillac Eldorado, you'll need to:

1. Perform the oil change: This is the most important step. Change your oil and filter according to the recommended schedule in your owner's manual.

2. Reset the light (if necessary): After the oil change, the light *should* go out automatically after a short drive (a few miles) or perhaps after the engine has run for a certain duration and has reached operating temperature. If the light remains on, the system might require a trip to a mechanic for diagnostics. It's possible a sensor is faulty, or there's a problem with the computer's programming.

There's no manual reset procedure involving buttons or specific key sequences. The system is designed to be simple and tied directly to oil change actions.

If the light persists after an oil change, it suggests a more significant underlying issue needs to be investigated by a mechanic. They have specialized tools and knowledge to diagnose any problems with the car's computer or sensors.