Kia Troubleshooting Questions? Ask a Mechanic
Unfortunately, the simple fact of being over-due for an Oil Change will not cause the vehicle to shut off and not restart. Check the oil level using the dipstick, and as long as it is at the correct level, there is a bigger problem at the root. Given the year of the vehicle, I would imagine this should be covered by the vehicle's warranty. Sorry to be the bearer of bad news here!