Why is my Ford Galaxy transmission shifting rough at high speeds?

I recently bought a used Ford Galaxy and I've noticed that the transmission shifts rough when I'm driving at high speeds on the highway. It's especially noticeable when I'm accelerating quickly. Is this a common issue with Ford Galaxys and how can I fix it?

It's possible that your transmission fluid may need to be changed. This can help improve the shifting performance.

Another possible cause could be a faulty transmission control module. I recommend taking it to a mechanic to have it checked out.

Have you checked the transmission mounts? If they are worn or damaged, it can cause rough shifting. I suggest having them inspected and replaced if necessary.