 This problem has happened a number of times with my  car a 2009 Elantra Hyundai,  he unlocks it, gets in, puts the key in, turns the ignition and it won't start. There is no connection with the engine, it just clicks. And when this does happen, the steering wheel is locked up solid. This is very scary part, what happens when the engine dies out? The steering wheel is completely locked. This is a very serious safety issue. Some times he has waited and unlocked and locked his doors a couple times and then it magically starts - there seems to be no rhyme or reason for when this happens. We had the problem about a 3 years ago and then it stopped so we never took it in but the problem is back and it is annoying as hell. The first time we were going to jump it and he tried to start it one more time and it started so we didn't jump it. It does not appear to be the battery but some kind of connection in the electrical system. I have taken my car to number of mechanic garages. Nobody can figure this problem out, other than says it's in the software programming system a problem?