How to diagnose transmission fluid problems?

I noticed that my car's transmission has been shifting roughly and I suspect there may be an issue with the transmission fluid. How can I diagnose this issue and potentially fix it?

First, check the color and level of your transmission fluid. If it is dark and smells burnt, it may be time for a fluid change. If it is low, top it off with the recommended fluid. If the fluid is clear and a normal level, the issue may lie elsewhere.

Another possibility is that there is a leak in the transmission system. Check for any visible leaks or puddles underneath your car. Also check the color of the fluid to see if it matches the color of your transmission fluid.

If you are still experiencing rough shifting after checking the color and level, it is best to take your car to a mechanic for further diagnostics. They have the tools and expertise to accurately diagnose and fix any issues with your transmission.