How do I troubleshoot a transmission issue in my Kia Sportage?

I recently noticed that my Kia Sportage's shifting has become rough and there is a strange noise coming from the transmission. What could be causing this and how can I fix it?

First, check the transmission fluid level and condition. If it is low or dirty, you may need to have it flushed and refilled. If that doesn't solve the issue, it could be a problem with the transmission solenoid or valve body. You may need to take it to a mechanic for further diagnosis and repair.

I had a similar issue with my Kia Soul. It turned out to be a faulty speed sensor. I would recommend taking your Sportage to a trusted mechanic to have it checked out.

In my experience with Kia vehicles, transmission issues are often caused by a faulty TCM (transmission control module). If your Sportage is still under warranty, take it to the dealership for a replacement. If not, you may be able to find a used one for a lower cost.