The key is the one in the top picture set however the barrel is literally a plastic barrel with a slot to put the key in which I'm guessing shapes to the key and then you can start using the push button.
The trip computer kept telling me the remote battery was low and after I changed it the old battery wouldn't work either.
I read online about how to reprogram it and the only guide I could find was when I had to turn the key to position ii four times to put it into learning mode.
The model I have has a cap over the ignition barrel but you can't actually turn the key it's just a slot for you put your key into and then use the push button start if your fob isn't working. I presume there is some sort if mechanism inside the barrel that recognises the key.