Why is the fuel gauge constantly showing full on my Vauxhall Crossland?

I have a Vauxhall Crossland and I've noticed that the fuel gauge is always showing full, even after driving for long distances. What could be causing this issue and how can I fix it?

This could be due to a faulty fuel level sensor. It is recommended to take your car to a certified mechanic to diagnose and replace the sensor if needed.

Check the wiring and connections for any loose or damaged parts. A faulty connection could also be the cause of the issue. If everything looks good, try resetting the gauge by disconnecting the battery for a few minutes.

Another possible issue could be a malfunctioning instrument cluster. If the fuel gauge is the only one showing incorrect readings, then the problem could be with the cluster. Consider getting it checked by a professional.