* Check the fuel level sender unit: This is the most likely culprit for an inaccurate reading. It's a component located in the fuel tank that sends a signal to the gauge. A faulty sender needs to be replaced by a mechanic.
* Inspect the gauge itself: While less common, the fuel gauge itself could be malfunctioning. This usually requires replacing the instrument cluster.
* Look for electrical issues: Check the wiring between the fuel level sender and the instrument cluster for any breaks, corrosion, or loose connections.
There is no procedure to "reset" the gauge. If the gauge is reading incorrectly, it indicates a problem with the fuel level sensing system or the gauge itself requiring professional diagnosis and repair.
