GMC LOW FUEL LIGHT

Recently, My Low Fuel Indicator Light Came On, As Well As My Check Engine Light. I Know For A Fact That The Vehicle Is Full Of Gas, But...

Any Ideas As To Why My Low Fuel Light Is On And I Am Unable To Put More Than A Gallon Of Gas In My Car With Out It Overflowing? Thank You

My Tank Is Half Full And When I Left The House This Morning The Fuel Light Came On And My Needle Was At E. I Added Gas And The Fuel Light Is...