Key is stuck in ignition

key wont come out or turn to off until gear selector is in park [ recognize that its in park ] your selector or transmission selector cable is damaged

put the cable back where it was

Does it go into the lock position ? Will the shifter go into the park position ? Is it a automatic transmission ?
Electronic Park Lock (EPL)/Ignition Lock Cylinder Control Actuator: If the vehicle is equipped with automatic transmission and a floor mounted console gear shift, it has an ignition lock cylinder control actuator system in the steering column. The ignition lock cylinder control actuator purpose is to prevent the ignition key from being turned to the OFF position when the transmission is in any position other than PARK and the vehicle may still be moving. The column ignition lock system consists of an ignition lock cylinder control actuator, and a park position switch that is located in the automatic transmission shift lock control switch. The ignition lock cylinder control actuator contains a pin that is spring loaded to mechanically prevent the ignition key cylinder from being turned to the lock position when the vehicle transmission is not in the PARK position. If vehicle power is lost, and/or the transmission is not in the PARK position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.
There should be a hole in the bottom of plastic steering cover or a rubber cover that comes out . you can stick your finger up there an there is a button you push that will allow you to take out the key !
2006 chevy cobalt How to fix key being stuck in the ignition 2006 Impala shifter problems

the ignition module (ignition switch on top of the steering column) normally doesn't get stuck.

things you can try:
steering wheel lock: (the pin gets a "burr" on it and locks everything up) wiggle steering wheel back and forth while trying to turn key.

transmission lock (parking on an incline will jam up the interlock)
push the shifter farther into park while trying to turn the key, or wiggle shifter

on top of transmission you can see the shifter cable remove it from lever. Try to move lever freely try to move the shifter if it stuck again
could be cable or transmission internal
hope it helps

Fixing stuck key in your gmc envoy same as a blazer !
Ignition Lock Cylinder Control Actuator
If the vehicle is equipped with a floor mounted console gear shifter, it has a ignition lock cylinder control actuator system in the steering column as an added safety feature. The ignition lock cylinder control actuators purpose is to prevent the steering wheel from being locked when the transmission is in gear and the vehicle may still be moving. The column ignition lock system consists of a ignition lock cylinder control acutator, and a park position switch that is located in the A/T shift lock control switch. The ignition lock cylinder control acutator contains a pin that is spring loaded out to mechanically prevent the ignition key cylinder from being turned to the lock position when vehicle transmission is not in the Park position. If vehicle power is lost, and/or the transmission is not in the Park position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.

you have a cable problem the one that goes to shifter put car on parking and push shifter that will release you key ok

rock steering wheel back and forth, while turning the key, rock vehicle back and forth to take pressure off transmission shifter. are you parked on any kind of up or down hill grade? if so, that's the problem. start using emergency brake before putting in park.

you might need to replace ignition key cylinder assy and replace current key, now, sometimes if this is a automatic transmission it might have problem with shifter interlock cable try moving shifter from park to first and back to park and try removing key again, but if key gets stuck and car won't start, does the key turns? does the engine cranks? are you using the correct key?

To be quite frank, a little further diagnosis on the part of the dealer will rectify this condition, but,
try this:
When the key will not come out, try pushing the shifter forwards towards the park position. If the key comes out then, it just may be an adjustment at the shifter cable.