How to prevent the Ford Galaxy's transmission from overheating?

I have a Ford Galaxy and I noticed that during long drives, the transmission starts to overheat. What could be the cause of this issue and how can I prevent it from happening?

Based on my experience with Ford Galaxys, the most common cause of transmission overheating is low transmission fluid. Make sure to check the fluid level and top it up if needed.

Another possible cause could be a faulty radiator or transmission cooler. Have a mechanic check these components and replace them if necessary.