How to troubleshoot a Ford Galaxy transmission issue?

I have a 2008 Ford Galaxy and recently I've been experiencing trouble with my transmission. It's been shifting gears roughly and sometimes even stalling. What are some possible causes for this issue and how can I fix it?

Based on your symptoms, it sounds like your transmission might be low on fluid. Check your fluid levels and top off if necessary.

Another possible cause could be a faulty shift solenoid. This is a relatively easy and inexpensive fix, so it's worth checking.

It could also be an issue with your transmission control module. I suggest taking your car to a reputable mechanic for a diagnostic test.