Instead of an oil life monitor, you'll likely see a simple oil change indicator light on your dash (often a picture of an oil can). This light will illuminate when it's time for an oil change based on mileage, and you need to reset it manually, usually by turning the ignition key. However, the process differs slightly depending on the specific year and trim level of your DeVille. The reset isn't "electronic" in the sense of a computer setting; it's just turning the light off.
To turn off the oil change light, try these methods (only one will work for your specific car; try them in order):
1. Ignition Cycle: Turn the ignition key to the "ON" position (without starting the engine). Let it sit for a few seconds, then turn it to the "OFF" position. Repeat this cycle several times. The light should turn off after a few cycles.
2. Longer Ignition Cycle: Try the method above, but leave the key in the "ON" position for longer (around 30 seconds to a minute) before turning it off for each cycle.
3. Consult your Owner's Manual: This is the best approach. Your owner's manual will have precise instructions for turning off the oil change indicator light for your specific 1997 Cadillac DeVille model.
If none of these work, it's possible the light is illuminated due to a separate issue unrelated to the oil change. Have a mechanic check the car's systems to ensure there's nothing else requiring attention.
Remember to change your oil and filter at the recommended intervals, regardless of the indicator light. This is crucial for maintaining the engine's health.
