Fuel Gauge Sending Unit (Fuel Level Sensor)
WARNING: This page is about a different car, the 2018 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
The fuel gauge sending unit (fuel level sensor) is attached to the side of the fuel pump module. The sending unit consists of a float, an arm, and a variable resistor track (card) and should only be replaced if a diagnostic procedure indicates to do so.