How do you open gas tank on gmc acadia 2015?

To open the gas tank on a 2015 GMC Acadia, first locate the fuel door release lever inside the vehicle, which is typically found on the lower left side of the driver's seat near the floor. Pull the lever to release the fuel door. Once the door is open, you can unscrew the gas cap to refuel. Remember to close the fuel door securely after refueling.