How to perform reset oil life gmc sierra 2011?

To reset an oil change reminder light or oil life warning in the 2011 GMC Sierra, first Make sure lubricant levels are adequate by raising the hood and removing the dipstick. Inside the vehicle, close all doors after parking on a flat surface. <\p. With the key in the ignition, turn it to the "acc" or "on" position without firing the engine. Depress the gas pedal to the floor of the truck three times consecutively, Make sure to complete this step within 5 seconds. Turn the key to the "off" position. Turn the vehicle on and the oil life reminder should no longer be flashing. Schedule regular service for the Sierra every 7,500-10,000 miles if using fully synthetic lubricants, or every 5,000 miles if filling with conventional products.