What is causing my Vauxhall Insignia's engine to overheat?

I've noticed that my Vauxhall Insignia's engine temperature is running high on my dashboard. What could be the issue and how can I resolve it?

One potential cause of an overheating engine is a malfunctioning cooling system. It's important to check the coolant levels and ensure that there are no leaks in the system. If everything seems fine with the cooling system, it's also worth checking the thermostat as it may need to be replaced.

Check the radiator for any blockages or debris that may be preventing proper airflow. You may also want to check the water pump for any signs of damage or wear and tear.

Another possible culprit of an overheating engine is a faulty fan. If the fan is not working properly, it will not be able to cool the engine properly. It's important to have the fan checked and replaced if necessary.