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To reset the oil light in a 2012 Mazda3, press the reset button on the dashboard. However, if you haven't changed the oil, the light will come back on. When changing the oil, ensure the car has been turned off and parked for a few hours to allow the engine to cool down. Locate the oil pan and drain plug underneath the engine, place a bucket under the plug, and remove it to let the oil drain. Wait for the draining to stop, which may take about an hour. Replace the drain plug, then locate the intake port on the top of the oil pan. Use a funnel to fill the oil pan, ensuring it's not overfilled to prevent leaks and oil burn off. Once properly filled, close the port, clean up any spilled oil, and the job is complete.
To reset the oil on a 2012 Mazda 3, first turn on the car without starting the engine. Locate the reset button on the dashboard and hold it down. Once the light blinks and then stops, switch off the vehicle and wait for 5 minutes. Your oil has been successfully reset.