the key will not come out of the swicth what could be wrong?

it sounds like an ignition lock cylinder problem. You may have to go to a shop and have the cylinder replaced.

This has happened for a few reasons on us. The most simple fix to get the key out is to flip out the little tab on the base of the shifter that has a picture of a padlock on it and stick a pen down in the hole and press the reset button to reset the security lock. Most of the time it's because of a low or weak battery. I haven't heard of anyone having problems with the actual ignition lock system itself, but I've had sillier electrical problems on GM vehicles. Either way, reseting the system should release the key so you can go on about your business for the short term.

my 2004 cadallic wont start,when i turn the key over the gages wont even move,and it also wont let me take my key out of it,new battery

my 2004 cadallic wont start,when i turn the key over the gages wont even move,and it also wont let me take my key out of it,new battery