Which should be the last step in an engine oil change?

The last step in an engine oil change should indeed involve resetting the maintenance reminder indicator. After completing the oil change process, which includes draining the old oil, removing and replacing the oil filter, and adding fresh oil, it's important to reset the reminder indicator. This ensures that the vehicle’s maintenance system accurately reflects when the next oil change is due. This helps the driver stay informed about maintenance schedules, allowing for timely service.

By resetting the maintenance reminder, you effectively complete the oil change process, ensuring both the vehicle's performance and the owner's awareness of upcoming service needs.