This is not complicated to replace however, I would try something first if the other keys are not turning it either.
Spray the key with WD 40 or some spray grease (white lithium grease) and put the key in and let it sit for a couple minutes. Then start working it back and forth and see if you can loosen it up.
More then likely it is just gummed up with dirt and this will help break it down. If it works loose then you will want to do this every other month or so. Just keep it lubricated and this won't happen again.
If this doesn't work then you will need to replace the cylinder with the attached process.
Here is a guide that will help with some other ideas as well:
https://www.2carpros.com/articles/ignition-switch-wont-turn-stuck
Let us know what questions you have. Thanks
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Saturday, December 12th, 2020 AT 6:17 PM
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