Where is the gas door release on 2010 Yukon?

On the 2010 GMC Yukon, the gas door release is located on the driver's side of the vehicle, near the floor. It is typically a small lever or button that you pull or press to open the fuel door. If you can't find it, you may also be able to open the fuel door directly by gently pushing on it, as it may have a spring mechanism.