You need battery voltage for the key to release from the ignition. Also, it must be in park.
Remove the battery and have a parts store charge and load test it for you. Most will do it free of charge.
Here is a link that shows how to remove and replace a battery:
If you want, before removing the battery, do a simple load test on it to confirm it is the battery and not a fuse issue. Here is a link that shows how that is done:
It is possible that the battery was damaged due to excessive heat, but I would think the flashers wouldn't have worked when this happened if that was the case.
Let me know what you find with the battery.
Tuesday, September 7th, 2021 AT 8:33 PM