What are the common transmission issues in the Kia Rio?

I've been experiencing some problems with my Kia Rio's transmission. It sometimes hesitates while shifting gears and makes a whining noise. What could be causing this and how can I fix it?

It's possible that your Kia Rio has a faulty transmission solenoid. This can be replaced by a mechanic to fix the shifting and noise issues.

Another potential cause could be low transmission fluid level. Check the levels and top it off if needed. If the problem persists, it may be a sign of a leak or other underlying issue.

If your Kia Rio has a lot of miles on it, it may be time for a transmission fluid and filter change. This can improve shifting and performance.