Try to cycle the key and move the transmission in and out of gear to see if that works if not then what happens is the ignition key lock tumbler ends up falling apart and it needs to be replaced.
Here are some diagrams (below) that will show you what you are in for when doing the job:
Please let us know what happens and upload pictures or videos of the problem.
Images (Click to enlarge)
Tuesday, October 3rd, 2017 AT 11:39 AM