What is the most common issue for Ford S-Max transmission?

I recently bought a used Ford S-Max and have been experiencing issues with the transmission. Despite having regular maintenance, it still seems to be giving me problems. What could be causing this and how can I fix it?

Transmission fluid could be low, causing the gears to slip and the transmission to overheat. Make sure to check the fluid levels and top up if needed.

It could also be an issue with the transmission control module. Have a mechanic run a diagnostic test to pinpoint the problem.

Another common issue with the Ford S-Max transmission is a faulty solenoid. This can cause erratic shifting and stalling. Have it replaced by a qualified mechanic.