To reset the 2016 GMC Sierra oil life after an oil change, please follow these instructions:
1. Turn the ignition to run (one position before starting engine). 2. Use the DIC arrow buttons on the right side of the steering wheel to display OIL LIFE REMAINING. 3. Press and hold the (check mark) button until REMAINING OIL LIFE 100% appears. 4. Turn the ignition off and then start the engine to verify the indicator has been reset. *Remaining oil life can also be reset by depressing the gas pedal 3 times within 5 seconds instead of using the DIC.