Kia Troubleshooting Questions? Ask a Mechanic
Hello, my name is***** can have codes checked for free at your local parts store so next time light comes on drive right to parts store, do not shut off vehicle, and have scantool connected to check codes. Any time you go to shop without check engine light on they will not be able to figure out much at least easily. Once you get codes you can reply back to this answer without additional fees and I can tell you common/possible problems, testing/repair instructions, and costs. It sounds like you probably have a failing shift solenoid or wiring to transmission based on what I'm hearing but checking codes is still step 1. Let me know if you have questions, thanks.