To reset the 2016 Chevrolet Sonic oil life % after an oil change, please follow these instructions:
1. Turn the ignition to run (one position before starting engine). 2. Press the MENU button on the turn signal lever to show Remaining Oil Life on the display. 3. To reset the engine oil life system, press the SET/CLR button while the oil life display is visible. After a few seconds, there will be a single chime and the oil life will be reset to 100%. 4. Turn the ignition off and then start the engine to verify the indicator has been reset.