Other Fuel System Hoses Lines/piping, And Fittings problems of the 2009 Hyundai Santa Fe

Like the other posted complaints, my 2009 Santa Fe is having fuel gauge issues. It never shows the correct level. I changed the fuel cap but this did nothing to solve the problem. My check engine light comes on because of this problem. The readout comes back: "fuel level sensor". This can be a dangerous situation and will prevent me from passing a state inspection. I use my trip odometer to gauge where I am with fuel tank level. I have to set my trip to zero at every fill-up. At 144 miles I know I'm at 1/2 a tank roughly. This is an issue that Hyundai is refusing to admit to so they can save money. Maybe this isn't an air bag, but, if I loan my car to my daughter and she runs out of fuel on a highway. . . . . . I don't want to think about it. Force Hyundai to fix this!.