It only happened once?
This happened one time to me with my 2013 Elantra. I left work and the car just wouldn’t start (it has a push button start). I work far from home and there’s no alternative but driving, so I’m thinking great, hubby will have to come and get me.
I got out of the car and was going to go up to the office to call him, and I thought, let me try one more time.
It started right up. That was the only time I had that problem but it was very weird.
This is the third time. The first time I didn’t think I had it in “park” so I dropped it to low then back into park. Another time I gave it a couple turns before it would start and thought the FOB might be flaky. This time, kaput until I got it to the garage. I don’t mind so much getting it fixed its maddening that we can’t pull a diag code from the onboard computer to even begin a diagnosis.