Common issues with the Kia Stonic's transmission

My Kia Stonic has been having issues with shifting gears smoothly. Sometimes, it jerks when changing gears and other times, it doesn't shift at all. What could be the cause of this and how can I fix it?

It is possible that your transmission fluid is low or dirty, which can cause shifting issues. I would recommend checking your fluid levels and possibly getting a transmission flush to see if that helps.

Another possibility could be a faulty sensor or solenoid in the transmission. I would suggest taking your car to a trusted mechanic to run diagnostics and see if any error codes come up.

Have you noticed any strange noises coming from your car? It could be a sign of worn or damaged transmission components. I would recommend getting your car checked by a professional as soon as possible to prevent further damage.