How to fix ignition key won't come out

Got a new vehicle Joe. Just what you need with the gas prices as high as they are!! Did you get rid of the 1998 Ford Contour?
Foot on the brake and go though the full shift range and then back to park. That should release the ignition lock. It appears to be a known issue. Check out the videos

https://www.google.com/search?q=get+the+key+out+of+the+ignition+switch+on+a+2004+GMC+Envoy+4.2


..

no info on vehicle generic answer either boost vehicle and turn key off --or on column under ignition switch will find small hole or plug use a stiff wire [ paper clip ] or small screw driver even an ice pick and push up to release key

didnt specify vehicle -generic answer--check battery terminals certain gm wont release key if battery dead or connection lost ,,re try putting in park if not in park correctly same no key removal --the following links are other ways to remove key as well
How to get your key out of the ignition if it gets stuck How to Fix an Ignition Key That Doesn Turn

On some vehicles if battery is bad or dead won't let you release it with out boost or battery charge. Also look under ignition switch on column some vehicles have a release look for a small access plug or hole push a small screwdriver or a thin metal stiff wire an push release and turn back and remove key check gear selector if not alway in park will not release key following link will help ? 1:21 www.youtube.com/watch?v=bctxs0Yj4Wc
Oct 24, 2012 - Uploaded by stanley saintlouis
it work honda, chevy, toyota , Ford ,VW Hunday,Dodge, chrysler , nissan ... promise it work for any ... http://www.youtube.com/watch?v=bctx0Yj4Wc

is your battery dead certain gm vehicles wont completely turn off if battery is dead try jumping car if battery is dead ======if not problem make sure shift select lever is in park if not all the way seated will not release the key also a damaged tumble will do the same also the following link shows how to remove key when stuck in certain vehicles
How To Remove Stuck Ingition Key Yahoo Video Search Results

Hello! Lets eliminate a potential cause: There is a Technical Service Bulletin (EL-00198) that addresses key-ring interference with the Transponder Chip in the key...A touchy anti-theft system to say the least...The key-ring should not rest on or come in contact with the key grip area...Do not place any other keys on a ring with the ignition key...Actually, in order to function properly the ignition key needs to be *****...As in nothing on or near the key...I'm not saying this is your fault but it needs to be removed as a potential cause..See additional FYI information below on how to add or delete an ignition key from your vehicle's system...BELOW IS A LINK TO A SITE THAT HAS A BYPASS MODULE FOR YOUR Gs-300....Guru...Saailer

http://www.drdetailshop.com/555X.htm

FYI

The Toyota Electronic Control Module does not have programming modes without a pre-programmed key.
If there is no key available that is already programmed into the module, the module must be replaced.

To delete all but one key from the unit:


Type E 1. Simultaneously depress and release brake and accelerator pedals 1 time.
2. Insert existing master key into ignition. Do not turn the key from the OFF (LOCK) position.
3. Within 15 seconds of inserting the key, depress and release the accelerator pedal six times.
4. Within 10 seconds of completing the above step, depress and release the accelerator pedal seven times.
5. The security light will flash, indication all keys other than the one being used have been deleted.
6. Remove the key from the ignition cylinder within ten seconds. It will be the only key still programmed to work

Add Duplicate Key:



1. Simultaneously depress and release brake and accelerator pedals 1 time.
2. Insert existing master key into ignition. Do not turn the key from the OFF (LOCK) position.
3. Within 15 seconds of inserting the key, depress and release the accelerator pedal five times.
4. Within 20 seconds of completing the above step, depress and release the brake pedal six times and
remove the key.
5. Within 10 seconds, insert the new key into the ignition.
6. Within 10 seconds, depress and release the accelerator pedal one time.
7. After 80 seconds the new key is registered and the security light will go off.
8. Remove new key and depress and release the brake pedal 1 time.

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Most vehicles you have to have power to remove the key from the ignition. It will go in and turn, but not completely turn back to the off position.

If the battery is dead, the ignition keys will not release from the ignition. If there is no signal from the transmission shifter that it's in park since the battery is dead, then the ignition lock will not release the keys.  After charging the battery or jumping the blazer to start it and the key's still will not release, try this. 
There is a "plunger" as part if the ignition. Under the steering wheel there is a small removable cap that you can take off and put a small screw driver up into and press the plunger in and it will release the key. Good luck and hope this helps, Keep me posted be glad to help. 

Try turning the steering wheel before turning the key. It may have been turned and locked prior to turning off the ignition.Good luck

Ignition switch (where key actually goes in) needs replaced. May be easier to get the whole column because that's not gonna be very simple. Also for the problem of getting nothing when you turn the key all the way over, that is the contacts within the box of the switch down the harness on the column. Not an impossible fix though. Contacts usually get burnt and give you dead spot once in awhile, will get worse, believe me.