You would probably have to pry it open without damaging the car's body in an emergency. Take the car to a dealership and have them check out the problem and fix the car. Good luck:)
If it's truly stuck than the only thing you can do it rip it open and hope that it won't cost a lot to fix. My guess for a repair that small would be right around $40 or so. I'm sure your KIA dealer might even take care of you for free if your car … Read more
Check fuse for that door first and then take to a mechanic or dealership where bought